194 lines
7.6 KiB
JSON
194 lines
7.6 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-2026-18374",
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"assignerOrgId": "3ff69d7a-14f2-4f67-a097-88dee7810d18",
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"state": "PUBLISHED",
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"assignerShortName": "glibc",
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"dateReserved": "2026-07-30T10:48:56.220Z",
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"datePublished": "2026-08-27T19:20:40.426Z",
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"dateUpdated": "2026-08-28T15:37:10.821Z"
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},
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"containers": {
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"cna": {
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"orgId": "3ff69d7a-14f2-4f67-a097-88dee7810d18",
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"shortName": "glibc",
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"dateUpdated": "2026-08-27T19:26:33.518Z"
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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": "Buffer overflow in fopen mode argument processing"
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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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"cweId": "CWE-787",
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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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"impacts": [
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{
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"capecId": "CAPEC-100",
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"descriptions": [
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{
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"lang": "en",
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"value": "CAPEC-100 Overflow Buffers"
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}
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]
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},
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{
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"capecId": "CAPEC-47",
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"descriptions": [
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{
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"lang": "en",
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"value": "CAPEC-47 Buffer Overflow via Parameter Expansion"
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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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"vendor": "The GNU C Library",
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"product": "glibc",
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"versions": [
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{
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"status": "affected",
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"version": "0",
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"lessThan": "2.45",
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"versionType": "custom"
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}
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],
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"defaultStatus": "unaffected"
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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": "Passing an effectively empty string to the `,ccs=` syntax extension of the mode argument in the `fopen` function in the GNU C Library version 2.45 or earlier may result in a heap buffer overflow when the mode string input to the function is attacker controlled.\n\n\n\nThis usage pattern is not seen in applications in common GNU/Linux distributions and applications that process user-supplied values for `ccs` should not pass them through without validation.",
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"value": "Passing an effectively empty string to the `,ccs=` syntax extension of the mode argument in the `fopen` function in the GNU C Library version 2.45 or earlier may result in a heap buffer overflow when the mode string input to the function is attacker controlled.\n<br>\n<br>This usage pattern is not seen in applications in common GNU/Linux distributions and applications that process user-supplied values for `ccs` should not pass them through without validation."
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}
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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://sourceware.org/bugzilla/show_bug.cgi?id=34574",
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"tags": [
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"issue-tracking"
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]
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},
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{
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"url": "https://sourceware.org/git/?p=glibc.git;a=blob_plain;f=advisories/GLIBC-SA-2026-0015",
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"tags": [
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"vendor-advisory"
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{
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"format": "CVSS",
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"lang": "en",
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"value": "GENERAL"
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}
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],
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"cvssV3_1": {
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"version": "3.1",
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"attackVector": "LOCAL",
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"attackComplexity": "HIGH",
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"privilegesRequired": "NONE",
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"userInteraction": "NONE",
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"scope": "UNCHANGED",
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"confidentialityImpact": "LOW",
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"integrityImpact": "LOW",
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"availabilityImpact": "LOW",
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"baseSeverity": "MEDIUM",
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"baseScore": 4.9,
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"vectorString": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L"
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}
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}
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],
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"source": {
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"discovery": "UNKNOWN"
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},
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"x_generator": {
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"engine": "Vulnogram 1.0.5"
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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": "http://www.openwall.com/lists/oss-security/2026/08/27/6"
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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": "2026-08-27T22:21:53.526Z"
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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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"type": "CWE",
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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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],
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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": "2026-08-28T15:36:48.992608Z",
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"id": "CVE-2026-18374",
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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": "2026-08-28T15:37:10.821Z"
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}
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} |