195 lines
8.0 KiB
JSON
195 lines
8.0 KiB
JSON
{
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"dataType": "CVE_RECORD",
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"cveMetadata": {
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"cveId": "CVE-2026-44028",
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"assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
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"state": "PUBLISHED",
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"assignerShortName": "mitre",
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"dateReserved": "2026-05-05T00:29:44.087Z",
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"datePublished": "2026-05-05T00:30:16.205Z",
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"dateUpdated": "2026-05-09T03:40:06.637Z"
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},
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"containers": {
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"cna": {
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"affected": [
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{
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"defaultStatus": "unaffected",
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"product": "Nix",
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"vendor": "NixOS",
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"versions": [
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{
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"lessThan": "2.28.7",
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"status": "affected",
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"version": "2.24.4",
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"versionType": "semver"
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},
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{
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"lessThan": "2.29.4",
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"status": "affected",
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"version": "2.29.0",
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"versionType": "semver"
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},
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{
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"lessThan": "2.30.5",
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"status": "affected",
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"version": "2.30.0",
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"versionType": "semver"
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},
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{
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"lessThan": "2.31.5",
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"status": "affected",
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"version": "2.31.0",
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"versionType": "semver"
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},
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{
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"lessThan": "2.32.8",
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"status": "affected",
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"version": "2.32.0",
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"versionType": "semver"
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},
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{
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"lessThan": "2.33.6",
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"status": "affected",
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"version": "2.33.0",
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"versionType": "semver"
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},
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{
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"lessThan": "2.34.7",
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"status": "affected",
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"version": "2.34.0",
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"versionType": "semver"
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}
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]
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},
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{
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"defaultStatus": "unaffected",
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"product": "Lix",
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"vendor": "Lix Project",
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"versions": [
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{
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"lessThan": "2.93.4",
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"status": "affected",
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"version": "2.93.0",
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"versionType": "semver"
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},
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{
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"lessThan": "2.94.2",
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"status": "affected",
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"version": "2.94.0",
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"versionType": "semver"
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},
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{
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"lessThan": "2.95.2",
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"status": "affected",
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"version": "2.95.0",
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"versionType": "semver"
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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": "An issue was discovered in Nix before 2.34.7 and Lix before 2.95.2. Unbounded recursion in the NAR (Nix Archive) parser could lead to a stack-to-heap overflow when the parser is run on a coroutine stack. The stack is allocated without a guard page, which means that a stack overflow could overwrite memory on the heap and could allow arbitrary code execution as the Nix daemon (run as root in multi-user installations) if ASLR hardening is bypassed. This can be exploited by all users able to connect to the daemon (e.g., in Nix, this is configurable via the allowed-users setting, defaulting to all users). The fixed versions are 2.34.7, 2.33.6, 2.32.8, 2.31.5, 2.30.5, 2.29.4, and 2.28.7 for Nix (introduced in 2.24.4); and 2.95.2, 2.94.2, and 2.93.4 for Lix (introduced in 2.93.0)."
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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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"attackComplexity": "HIGH",
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"attackVector": "LOCAL",
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"availabilityImpact": "NONE",
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"baseScore": 7.5,
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"baseSeverity": "HIGH",
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"confidentialityImpact": "HIGH",
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"integrityImpact": "HIGH",
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"privilegesRequired": "LOW",
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"scope": "CHANGED",
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"userInteraction": "NONE",
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"vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:N",
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"version": "3.1"
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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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}
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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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"cweId": "CWE-674",
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"description": "CWE-674 Uncontrolled Recursion",
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"lang": "en",
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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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"providerMetadata": {
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"orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
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"shortName": "mitre",
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"dateUpdated": "2026-05-09T03:40:06.637Z"
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},
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"references": [
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{
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"url": "https://discourse.nixos.org/t/security-advisory-local-privilege-escalation-in-lix-and-nix/77407"
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},
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{
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"url": "https://github.com/NixOS/nix/security/advisories/GHSA-vh5x-56v6-4368"
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},
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{
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"url": "https://www.openwall.com/lists/oss-security/2026/05/04/33"
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},
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{
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"url": "https://www.openwall.com/lists/oss-security/2026/05/04/32"
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},
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{
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"url": "https://lix.systems/blog/2026-05-05-lix-unsigned-integer-overflow/"
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}
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],
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"x_generator": {
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"engine": "CVE-Request-form 0.0.1"
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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": "2026-05-05T14:03:11.111278Z",
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"id": "CVE-2026-44028",
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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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"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": "2026-05-05T14:13:37.898Z"
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}
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}
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]
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},
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"dataVersion": "5.2"
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} |