212 lines
8.4 KiB
JSON
212 lines
8.4 KiB
JSON
{
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"dataType": "CVE_RECORD",
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"cveId": "CVE-2026-116742",
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"assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
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"state": "PUBLISHED",
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"dateReserved": "2026-10-26T20:23:36.636Z",
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"datePublished": "2026-10-26T21:52:41.511Z",
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},
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"datePublic": "2026-07-31T00:00:00.000Z",
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"title": "HTSlib through 1.24 Heap Out-of-Bounds Write via Truncated .gzi Index Count",
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"descriptions": [
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{
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"lang": "en",
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"value": "HTSlib through 1.24 contains a heap out-of-bounds write and read vulnerability in bgzf_index_load_hfile() in bgzf.c that allows attackers to corrupt heap memory by supplying a crafted .gzi index entry count. A count of 0xFFFFFFFF truncates noffs to zero, causing writes past a malloc(0) buffer and an offs[-1] read in bgzf_useek(), resulting in heap corruption or crashes in tools like samtools and bcftools."
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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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"description": "Numeric Truncation Error",
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"cweId": "CWE-197",
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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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"defaultStatus": "unaffected",
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{
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"version": "0",
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"versionType": "custom",
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"lessThanOrEqual": "1.24"
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}
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],
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"packageURL": "pkg:github/samtools/htslib",
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"repo": "https://github.com/samtools/htslib"
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"versionEndIncluding": "1.24"
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"vectorString": "CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N",
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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": "PASSIVE",
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"vulnConfidentialityImpact": "NONE",
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"vulnIntegrityImpact": "LOW",
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"vulnAvailabilityImpact": "LOW",
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"privilegesRequired": "NONE",
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"scope": "UNCHANGED",
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"references": [
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{
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"url": "https://github.com/samtools/htslib/pull/2057",
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"tags": [
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"name": "Pull Request #2057"
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{
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"tags": [
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"technical-description"
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]
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},
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{
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"url": "https://hackmd.io/@haindpwn/htslib-bgzf-gzi-int-truncation-oob",
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"tags": [
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"third-party-advisory"
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{
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"url": "https://github.com/samtools/htslib/issues/2113",
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},
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{
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"name": "VulnCheck Advisory: HTSlib through 1.24 Heap Out-of-Bounds Write via Truncated .gzi Index Count",
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"tags": [
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"third-party-advisory"
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],
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"url": "https://www.vulncheck.com/advisories/htslib-through-1.24-heap-out-of-bounds-write-via-truncated-gzi-index-count"
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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": "HaiND from the Post and Telecommunication Institute of Technology",
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"type": "finder"
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{
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"lang": "en",
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"value": "daviesrob",
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{
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"metrics": [
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{
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"type": "ssvc",
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"content": {
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"timestamp": "2026-10-27T13:42:04.833817Z",
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"id": "CVE-2026-116742",
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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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"Technical Impact": "partial"
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"role": "CISA Coordinator",
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"version": "2.0.3"
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