198 lines
8.3 KiB
JSON
198 lines
8.3 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-2026-66485",
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"assignerOrgId": "4bb8329e-dd38-46c1-aafb-9bf32bcb93c6",
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"state": "PUBLISHED",
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"assignerShortName": "CERT-PL",
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"dateReserved": "2026-07-27T11:32:08.682Z",
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"datePublished": "2026-08-10T10:25:34.337Z",
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"dateUpdated": "2026-08-10T10:56:56.427Z"
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},
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"containers": {
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"cna": {
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"providerMetadata": {
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"orgId": "4bb8329e-dd38-46c1-aafb-9bf32bcb93c6",
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"shortName": "CERT-PL",
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"dateUpdated": "2026-08-10T10:25:34.337Z"
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},
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"title": "Uncontrolled Memory Allocation in GNU cpio",
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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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"cweId": "CWE-789",
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"description": "CWE-789 Memory allocation with excessive size value",
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"type": "CWE"
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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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"vendor": "GNU",
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"product": "cpio",
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"repo": "https://git.savannah.gnu.org/cgit/cpio.git",
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"modules": [
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"make_path"
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],
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"programFiles": [
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"makepath.c"
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],
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"programRoutines": [
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{
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"name": "make_path"
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}
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],
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"versions": [
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{
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"status": "affected",
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"version": "0",
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"lessThanOrEqual": "2.15",
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"versionType": "custom"
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}
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],
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"defaultStatus": "unaffected"
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}
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],
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"cpeApplicability": [
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{
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"operator": "OR",
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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:a:gnu:cpio:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "0",
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"versionEndIncluding": "2.15"
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}
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]
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}
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]
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}
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],
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"descriptions": [
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{
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"lang": "en",
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"value": "GNU cpio is vulnerable to an uncontrolled memory allocation in the make_path function at src/makepath.c. The function uses alloca to allocate stack memory based on the length of argpath, which is derived from an archive-controlled pathname during extraction. A malicious cpio archive containing a sufficiently long nested pathname causes an unbounded stack allocation, resulting in a stack overflow and crash of the cpio process. An attacker who can supply a crafted cpio archive to a victim who extracts it can cause a denial of service.\n\nThis issue has been fixed in commit 3cd514031371d8aeeaf2048aa10103e02831aaa9",
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"supportingMedia": [
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{
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"type": "text/html",
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"base64": false,
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"value": "GNU cpio is vulnerable to an uncontrolled memory allocation in the make_path function at src/makepath.c. The function uses alloca to allocate stack memory based on the length of argpath, which is derived from an archive-controlled pathname during extraction. A malicious cpio archive containing a sufficiently long nested pathname causes an unbounded stack allocation, resulting in a stack overflow and crash of the cpio process. An attacker who can supply a crafted cpio archive to a victim who extracts it can cause a denial of service.<br><br>This issue has been fixed in commit 3cd514031371d8aeeaf2048aa10103e02831aaa9"
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}
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]
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}
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],
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"tags": [
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"x_open-source"
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],
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"references": [
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{
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"url": "https://cert.pl/en/posts/2026/08/CVE-2026-66484",
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"tags": [
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"third-party-advisory"
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]
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},
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{
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"url": "https://git.savannah.gnu.org/cgit/cpio.git",
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"tags": [
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"product"
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]
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}
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],
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"metrics": [
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{
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"format": "CVSS",
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"scenarios": [
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{
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"lang": "en",
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"value": "GENERAL"
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}
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],
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"cvssV4_0": {
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"attackVector": "LOCAL",
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"attackComplexity": "LOW",
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"attackRequirements": "NONE",
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"privilegesRequired": "NONE",
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"userInteraction": "ACTIVE",
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"vulnConfidentialityImpact": "NONE",
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"subConfidentialityImpact": "NONE",
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"vulnIntegrityImpact": "NONE",
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"subIntegrityImpact": "NONE",
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"vulnAvailabilityImpact": "LOW",
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"subAvailabilityImpact": "NONE",
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"exploitMaturity": "NOT_DEFINED",
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"Safety": "NOT_DEFINED",
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"Automatable": "NOT_DEFINED",
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"Recovery": "NOT_DEFINED",
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"valueDensity": "NOT_DEFINED",
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"vulnerabilityResponseEffort": "NOT_DEFINED",
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"providerUrgency": "NOT_DEFINED",
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"version": "4.0",
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"baseSeverity": "MEDIUM",
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"baseScore": 4.6,
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"vectorString": "CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N"
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}
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}
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],
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"credits": [
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{
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"lang": "en",
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"value": "Michał Majchrowicz (AFINE Team)",
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"type": "finder"
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},
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{
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"lang": "en",
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"value": "Marcin Wyczechowski (AFINE Team)",
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"type": "finder"
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}
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],
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"source": {
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"discovery": "EXTERNAL"
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},
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"x_generator": {
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"engine": "Vulnogram 1.0.3"
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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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"timestamp": "2026-08-10T10:56:48.503812Z",
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"id": "CVE-2026-66485",
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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": "partial"
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}
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],
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"role": "CISA Coordinator",
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"version": "2.0.3"
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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": "2026-08-10T10:56:56.427Z"
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}
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}
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]
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}
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} |