161 lines
6.5 KiB
JSON
161 lines
6.5 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-2026-91926",
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"assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
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"state": "PUBLISHED",
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"assignerShortName": "redhat",
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"dateReserved": "2026-09-15T10:53:12.456Z",
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"datePublished": "2026-09-15T11:49:10.516Z",
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"dateUpdated": "2026-11-06T19:56:33.639Z"
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},
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"containers": {
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"cna": {
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"title": "Gss-ntlmssp: gss-ntlmssp: memory leak in ntlm_decode_target_info via duplicated av_pair entries in ntlm challenge",
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"metrics": [
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{
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"other": {
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"content": {
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"value": "Low",
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"namespace": "https://access.redhat.com/security/updates/classification/"
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},
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"type": "Red Hat severity rating"
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}
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},
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{
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"cvssV3_1": {
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"attackComplexity": "HIGH",
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"attackVector": "NETWORK",
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"availabilityImpact": "LOW",
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"baseScore": 3.7,
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"baseSeverity": "LOW",
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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:H/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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"format": "CVSS"
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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": "A flaw was found in gss-ntlmssp. A memory leak occurs in the NTLM target-info parser when a crafted NTLM CHALLENGE message contains duplicated string-valued AV_PAIR entries. The parser allocates memory for each string value but does not free the previous allocation when the same AV_PAIR type appears more than once, leaking the earlier allocation. A malicious or man-in-the-middle server can exploit this to cause gradual memory exhaustion on the client during NTLM authentication, leading to a denial of service."
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}
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],
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"affected": [
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{
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"vendor": "Red Hat",
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"product": "Red Hat Enterprise Linux 8",
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"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
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"packageName": "gssntlmssp",
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"defaultStatus": "affected",
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"cpes": [
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"cpe:/a:redhat:enterprise_linux:8"
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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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"url": "https://access.redhat.com/security/cve/CVE-2026-91926",
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"tags": [
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"vdb-entry",
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"x_refsource_REDHAT"
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]
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},
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{
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"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2533698",
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"name": "RHBZ#2533698",
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"tags": [
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"issue-tracking",
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"x_refsource_REDHAT"
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]
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}
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],
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"datePublic": "2026-09-15T00:00:00.000Z",
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"problemTypes": [
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{
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"descriptions": [
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{
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"cweId": "CWE-401",
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"description": "Missing Release of Memory after Effective Lifetime",
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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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"x_redhatCweChain": "CWE-401: Missing Release of Memory after Effective Lifetime",
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"workarounds": [
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{
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"lang": "en",
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"value": "No mitigation is currently available that meets Red Hat Product Security's standards for usability, deployment, applicability, or stability."
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}
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],
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"timeline": [
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{
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"lang": "en",
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"time": "2026-09-11T00:15:46.000Z",
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"value": "Reported to Red Hat."
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},
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{
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"lang": "en",
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"time": "2026-09-15T00:00:00.000Z",
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"value": "Made public."
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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": "Red Hat would like to thank Chase Bevan-Thomas (cbev0x) (Independent security researcher) for reporting this issue."
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}
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],
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"providerMetadata": {
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"orgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
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"shortName": "redhat",
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"dateUpdated": "2026-11-06T19:56:33.639Z"
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},
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"x_generator": {
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"engine": "cvelib 1.8.0"
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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": "2026-09-17T14:24:14.247594Z",
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"id": "CVE-2026-91926",
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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": "2026-09-17T14:24:37.383Z"
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}
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}
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]
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}
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} |