158 lines
6.9 KiB
JSON
158 lines
6.9 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-2026-61627",
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"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
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"state": "PUBLISHED",
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"assignerShortName": "GitHub_M",
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"dateReserved": "2026-07-10T17:38:57.110Z",
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"datePublished": "2026-10-30T14:55:45.500Z",
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"dateUpdated": "2026-10-30T15:51:10.521Z"
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},
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"containers": {
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"cna": {
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"title": "libass: Out-of-bounds read and write in wrap_lines_measure",
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"problemTypes": [
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{
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"descriptions": [
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{
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"cweId": "CWE-125",
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"lang": "en",
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"description": "CWE-125: Out-of-bounds Read",
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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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"descriptions": [
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{
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"cweId": "CWE-787",
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"lang": "en",
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"description": "CWE-787: Out-of-bounds Write",
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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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"metrics": [
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{
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"cvssV4_0": {
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"attackVector": "LOCAL",
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"attackComplexity": "HIGH",
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"attackRequirements": "NONE",
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"privilegesRequired": "NONE",
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"userInteraction": "PASSIVE",
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"vulnConfidentialityImpact": "HIGH",
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"vulnIntegrityImpact": "HIGH",
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"vulnAvailabilityImpact": "HIGH",
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"subConfidentialityImpact": "NONE",
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"subIntegrityImpact": "NONE",
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"subAvailabilityImpact": "NONE",
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"baseScore": 7.3,
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"baseSeverity": "HIGH",
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"vectorString": "CVSS:4.0/AV:L/AC:H/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",
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"version": "4.0"
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}
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}
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],
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"references": [
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{
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"name": "https://github.com/libass/libass/security/advisories/GHSA-pjjp-65r7-ppgm",
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"tags": [
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"x_refsource_CONFIRM"
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],
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"url": "https://github.com/libass/libass/security/advisories/GHSA-pjjp-65r7-ppgm"
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},
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{
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"name": "https://github.com/libass/libass/commit/f2ef59755292bc4bb950ef22710e18a5487c399d",
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"tags": [
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"x_refsource_MISC"
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],
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"url": "https://github.com/libass/libass/commit/f2ef59755292bc4bb950ef22710e18a5487c399d"
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},
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{
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"name": "https://github.com/libass/libass/releases/tag/0.17.5",
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"tags": [
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"x_refsource_MISC"
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],
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"url": "https://github.com/libass/libass/releases/tag/0.17.5"
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}
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],
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"affected": [
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{
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"vendor": "libass",
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"product": "libass",
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"versions": [
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{
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"version": "< 0.17.5",
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"status": "affected"
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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": "a0819718-46f1-4df5-94e2-005712e83aaa",
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"shortName": "GitHub_M",
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"dateUpdated": "2026-10-30T14:55:45.500Z"
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},
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"descriptions": [
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{
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"lang": "en",
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"value": "libass is a portable subtitle renderer for the `ASS`/SSA (Advanced Substation Alpha/Substation Alpha) subtitle format. Prior to 0.17.5, libass can overread and overwrite the glyph array in `wrap_lines_measure` while rendering malicious `ASS` content. In `wrap modes other than two`, a final line ending with a literal backslash-n sequence and otherwise consisting only of such sequences or spaces can remain after early trimming and make the line-measurement loops overshoot by one glyph. When the total text size exactly matches the allocated glyph-array capacity, the first loop reads an uninitialized 32-bit fixed-point `pos.x` value, although that value is not subsequently used. The second loop writes `pos.x` and `pos.y` beyond the array, zeroing the first and adding an attacker-controllable offset to the second. No actual exploitation beyond possible denial of service is known; broader exploitation is theoretical and constrained by the addresses, limited writes, and ASLR. This issue is fixed in version 0.17.5."
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}
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],
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"source": {
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"advisory": "GHSA-pjjp-65r7-ppgm",
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"discovery": "UNKNOWN"
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}
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},
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"adp": [
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{
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"title": "CVE Program Container",
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"references": [
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{
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"url": "https://lists.debian.org/debian-lts-announce/2026/09/msg00004.html"
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}
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],
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"providerMetadata": {
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"orgId": "af854a3a-2127-422b-91ae-364da2661108",
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"shortName": "CVE",
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"dateUpdated": "2026-10-30T15:10:45.937Z"
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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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"other": {
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"type": "ssvc",
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"content": {
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"timestamp": "2026-10-30T15:34:57.627086Z",
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"id": "CVE-2026-61627",
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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": "2026-10-30T15:51:10.521Z"
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}
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}
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]
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}
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} |