165 lines
7.0 KiB
JSON
165 lines
7.0 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-2026-53585",
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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": "2026-06-09T19:11:53.484Z",
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"datePublished": "2026-08-20T18:37:44.115Z",
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"dateUpdated": "2026-08-25T15:21:43.819Z"
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},
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"containers": {
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"cna": {
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"title": "libgit2: Unbounded Memory Allocation via Delta Object Result-Size Header",
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"problemTypes": [
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{
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"descriptions": [
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{
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"cweId": "CWE-770",
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"lang": "en",
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"description": "CWE-770: Allocation of Resources Without Limits or Throttling",
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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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"cvssV3_1": {
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"attackComplexity": "LOW",
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"attackVector": "NETWORK",
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"availabilityImpact": "LOW",
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"baseScore": 5.3,
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"baseSeverity": "MEDIUM",
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"confidentialityImpact": "NONE",
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"integrityImpact": "NONE",
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"privilegesRequired": "NONE",
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"scope": "UNCHANGED",
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"userInteraction": "NONE",
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"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
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"version": "3.1"
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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/libgit2/libgit2/security/advisories/GHSA-27m5-gxxh-x79j",
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"tags": [
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"x_refsource_CONFIRM"
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],
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"url": "https://github.com/libgit2/libgit2/security/advisories/GHSA-27m5-gxxh-x79j"
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},
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{
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"name": "https://github.com/libgit2/libgit2/commit/0cdfdd5fa8f8514c82413025e1e0808866cf7c30",
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"tags": [
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"x_refsource_MISC"
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],
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"url": "https://github.com/libgit2/libgit2/commit/0cdfdd5fa8f8514c82413025e1e0808866cf7c30"
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},
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{
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"name": "https://github.com/libgit2/libgit2/commit/c1896f06df22cc0ca5658df3a8f6cd7ede4cd6ae",
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"tags": [
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"x_refsource_MISC"
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],
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"url": "https://github.com/libgit2/libgit2/commit/c1896f06df22cc0ca5658df3a8f6cd7ede4cd6ae"
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},
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{
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"name": "https://github.com/libgit2/libgit2/commit/dec22ac01ad9620c96b7b9ac3ef636ea46d43bed",
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"tags": [
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"x_refsource_MISC"
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],
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"url": "https://github.com/libgit2/libgit2/commit/dec22ac01ad9620c96b7b9ac3ef636ea46d43bed"
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},
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{
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"name": "https://github.com/libgit2/libgit2/releases/tag/v1.8.6",
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"tags": [
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"x_refsource_MISC"
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],
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"url": "https://github.com/libgit2/libgit2/releases/tag/v1.8.6"
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},
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{
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"name": "https://github.com/libgit2/libgit2/releases/tag/v1.9.5",
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"tags": [
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"x_refsource_MISC"
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],
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"url": "https://github.com/libgit2/libgit2/releases/tag/v1.9.5"
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}
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],
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"affected": [
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{
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"vendor": "libgit2",
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"product": "libgit2",
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"versions": [
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{
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"version": "< 1.8.6",
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"status": "affected"
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},
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{
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"version": ">= 1.9.0, < 1.9.5",
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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": "2026-08-20T18:37:44.115Z"
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},
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"descriptions": [
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{
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"lang": "en",
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"value": "libgit2 is a portable C implementation of the Git core methods provided as a linkable library with a solid API, allowing to build Git functionality into your application. Prior to 1.8.6 and 1.9.5, git_delta_apply in src/libgit2/delta.c trusts the attacker-controlled res_sz value parsed by hdr_sz from a delta object header and passes that amount to git__malloc before validating delta instructions. Malicious pack data supplied through git_clone, git_fetch, git_remote_fetch, git_indexer_append, or a local attacker-supplied repository can use a very small multi-level OFS_DELTA chain to retain extremely large allocations and exhaust memory. This issue is fixed in versions 1.8.6 and 1.9.5."
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}
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],
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"source": {
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"advisory": "GHSA-27m5-gxxh-x79j",
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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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"references": [
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{
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"url": "https://github.com/libgit2/libgit2/security/advisories/GHSA-27m5-gxxh-x79j",
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"tags": [
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"exploit"
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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": "2026-08-25T15:21:18.543141Z",
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"id": "CVE-2026-53585",
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"options": [
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{
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"Exploitation": "poc"
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},
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{
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"Automatable": "yes"
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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": "2026-08-25T15:21:43.819Z"
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}
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}
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]
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}
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} |