310 lines
16 KiB
JSON
310 lines
16 KiB
JSON
{
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"dataType": "CVE_RECORD",
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"dataVersion": "5.2",
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"cveMetadata": {
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"cveId": "CVE-2026-64313",
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"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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"state": "PUBLISHED",
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"assignerShortName": "Linux",
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"dateReserved": "2026-07-19T15:36:31.779Z",
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"datePublished": "2026-07-25T08:49:44.546Z",
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"dateUpdated": "2026-10-19T20:38:23.266Z"
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},
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"containers": {
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"cna": {
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"providerMetadata": {
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"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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"shortName": "Linux",
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"dateUpdated": "2026-08-17T04:53:13.285Z"
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},
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"descriptions": [
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{
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"lang": "en",
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\ncrypto: ecc - Fix carry overflow in vli multiplication\n\nThe carry flag calculation fails when r01.m_high is saturated\n(0xFFFFFFFFFFFFFFFF) and addition of lower bits overflows.\n\nThe condition (r01.m_high < product.m_high) doesn't handle the case\nwhere r01.m_high == product.m_high and an additional carry exists\nfrom lower-bit overflow.\n\nWhen commit 3c4b23901a0c (\"crypto: ecdh - Add ECDH software support\")\nintroduced crypto/ecc.c, it split the muladd() function in the\nmicro-ecc library into separate mul_64_64() and add_128_128() helpers.\nIt seems the check got lost in translation.\n\nAdd proper handling for this boundary by accounting for the carry\nfrom the lower addition."
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}
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],
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"metrics": [
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{
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"cvssV3_1": {
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"version": "3.1",
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"vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
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"baseScore": 8.8,
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"baseSeverity": "HIGH"
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},
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"scenarios": [
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{
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"lang": "en",
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"value": "AV:A - The concrete unauthenticated external path is Bluetooth LE Secure Connections, where a nearby peer's SMP Public Key message reaches the flawed ECC multiplication. Bluetooth requires proximity rather than routable network access.\nAC:L - The attacker controls the ECC operands and can repeatedly submit deliberately constructed values that trigger the carry error. No race, unpredictable memory layout, or victim-controlled state is required.\nPR:N - SMP permits a peer to negotiate Secure Connections and submit its public key before credential validation, DHKey confirmation, or bonding completes. No local account or capability is required.\nUI:N - The peer's public key is validated and the ECDH secret is computed before authentication-method completion. Headless and Just Works deployments require no human action.\nS:U - The vulnerable arithmetic and affected cryptographic consumers operate within the same kernel security authority. The vulnerability does not inherently cross a VM, IOMMU, or comparable security boundary.\nC:H - Incorrect field multiplication can undermine public-key validation and ECDH shared-secret computation. Faulty-curve or key-agreement attacks could expose secrets and all data protected by derived session keys.\nI:H - The same faulty multiplication supports ECDSA and ECRDSA verification, making false cryptographic results and signature or peer-authentication bypass defensible. This can authorize attacker-controlled content, code, or commands.\nA:H - Authentication bypass can authorize attacker-controlled code or commands capable of halting the system, while repeated crafted exchanges can prevent secure pairing. Safety-critical or headless devices dependent on the affected trust path can lose their protected function completely."
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}
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]
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}
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],
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"affected": [
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{
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"product": "Linux",
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"vendor": "Linux",
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"defaultStatus": "unaffected",
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"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
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"programFiles": [
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"crypto/ecc.c"
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],
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"versions": [
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{
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"version": "3c4b23901a0c766879dff680cd6bdab47bcdbbd2",
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"lessThan": "d11b2bb99bec1f5557c01cac42231e23745f49b8",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "3c4b23901a0c766879dff680cd6bdab47bcdbbd2",
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"lessThan": "b709e0e768766abe29a49e1c1922a1604be602f4",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "3c4b23901a0c766879dff680cd6bdab47bcdbbd2",
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"lessThan": "24a54dfa06d09813b4802a374fad3d2c0e16a884",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "3c4b23901a0c766879dff680cd6bdab47bcdbbd2",
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"lessThan": "677450e5ef850c4d28b7956aa01104548c2a894e",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "3c4b23901a0c766879dff680cd6bdab47bcdbbd2",
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"lessThan": "5275e0fca256d081e2e7d4ba3dd8216c6e50d44e",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "3c4b23901a0c766879dff680cd6bdab47bcdbbd2",
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"lessThan": "774ddddf5eb26eeca177350413e3e2bc50930ee9",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "3c4b23901a0c766879dff680cd6bdab47bcdbbd2",
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"lessThan": "ebaae7c4251cc0cdb2602f334d4f08a3e82d271e",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "3c4b23901a0c766879dff680cd6bdab47bcdbbd2",
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"lessThan": "27b536a2ec8e2f85a0380c2d13c9ecbc7aaab406",
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"status": "affected",
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"versionType": "git"
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}
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]
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},
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{
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"product": "Linux",
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"vendor": "Linux",
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"defaultStatus": "affected",
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"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
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"programFiles": [
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"crypto/ecc.c"
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],
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"versions": [
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{
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"version": "4.8",
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"status": "affected"
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},
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{
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"version": "0",
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"lessThan": "4.8",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "5.10.261",
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"lessThanOrEqual": "5.10.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "5.15.212",
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"lessThanOrEqual": "5.15.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.1.178",
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"lessThanOrEqual": "6.1.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.6.145",
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"lessThanOrEqual": "6.6.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.12.96",
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"lessThanOrEqual": "6.12.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.18.39",
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"lessThanOrEqual": "6.18.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "7.1.4",
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"lessThanOrEqual": "7.1.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "7.2",
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"lessThanOrEqual": "*",
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"status": "unaffected",
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"versionType": "original_commit_for_fix"
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}
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]
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}
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],
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"cpeApplicability": [
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{
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"nodes": [
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{
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"operator": "OR",
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"negate": false,
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"cpeMatch": [
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "4.8",
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"versionEndExcluding": "5.10.261"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"references": [
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{
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"url": "https://git.kernel.org/stable/c/d11b2bb99bec1f5557c01cac42231e23745f49b8"
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},
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{
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"url": "https://git.kernel.org/stable/c/b709e0e768766abe29a49e1c1922a1604be602f4"
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},
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{
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"url": "https://git.kernel.org/stable/c/24a54dfa06d09813b4802a374fad3d2c0e16a884"
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},
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{
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"url": "https://git.kernel.org/stable/c/677450e5ef850c4d28b7956aa01104548c2a894e"
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},
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{
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"url": "https://git.kernel.org/stable/c/5275e0fca256d081e2e7d4ba3dd8216c6e50d44e"
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},
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{
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"url": "https://git.kernel.org/stable/c/774ddddf5eb26eeca177350413e3e2bc50930ee9"
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},
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{
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"url": "https://git.kernel.org/stable/c/ebaae7c4251cc0cdb2602f334d4f08a3e82d271e"
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},
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{
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"url": "https://git.kernel.org/stable/c/27b536a2ec8e2f85a0380c2d13c9ecbc7aaab406"
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}
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],
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"title": "crypto: ecc - Fix carry overflow in vli multiplication",
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"x_generator": {
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"engine": "bippy-1.2.0"
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}
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},
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"adp": [
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{
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"metrics": [
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{
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"other": {
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"type": "ssvc",
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"content": {
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"id": "CVE-2026-64313",
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"role": "CISA Coordinator",
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"options": [
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{
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"Exploitation": "none"
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},
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{
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"Automatable": "no"
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},
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{
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"Technical Impact": "total"
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}
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],
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"version": "2.0.3",
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"timestamp": "2026-10-16T15:38:54.142625Z"
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}
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}
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}
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],
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"problemTypes": [
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{
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"descriptions": [
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{
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"lang": "en",
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"type": "CWE",
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"cweId": "CWE-190",
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"description": "CWE-190 Integer Overflow or Wraparound"
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}
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]
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}
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],
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"title": "CISA ADP Vulnrichment",
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"providerMetadata": {
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"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
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"shortName": "CISA-ADP",
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"dateUpdated": "2026-10-19T20:38:23.266Z"
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}
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}
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]
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}
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} |