1684 lines
76 KiB
JSON
1684 lines
76 KiB
JSON
{
|
|
"dataType": "CVE_RECORD",
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"dataVersion": "5.2",
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"cveMetadata": {
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"cveId": "CVE-2026-6477",
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"assignerOrgId": "f86ef6dc-4d3a-42ad-8f28-e6d5547a5007",
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|
"state": "PUBLISHED",
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"assignerShortName": "PostgreSQL",
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|
"dateReserved": "2026-04-17T00:44:19.965Z",
|
|
"datePublished": "2026-05-14T13:00:12.497Z",
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"dateUpdated": "2026-08-25T12:05:44.549Z"
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},
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"containers": {
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"cna": {
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"providerMetadata": {
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"orgId": "f86ef6dc-4d3a-42ad-8f28-e6d5547a5007",
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"shortName": "PostgreSQL",
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"dateUpdated": "2026-05-14T13:00:12.497Z"
|
|
},
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"title": "PostgreSQL libpq lo_* functions let server superuser overwrite client stack memory",
|
|
"descriptions": [
|
|
{
|
|
"lang": "en",
|
|
"value": "Use of inherently dangerous function PQfn(..., result_is_int=0, ...) in PostgreSQL libpq lo_export(), lo_read(), lo_lseek64(), and lo_tell64() functions allows the server superuser to overwrite a client stack buffer with an arbitrarily-large response. Like gets(), PQfn(..., result_is_int=0, ...) stores arbitrary-length, server-determined data into a buffer of unspecified size. Because both the \\lo_export command in psql and pg_dump call lo_read(), the server superuser can overwrite pg_dump or psql stack memory. Versions before PostgreSQL 18.4, 17.10, 16.14, 15.18, and 14.23 are affected."
|
|
}
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],
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"affected": [
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{
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"defaultStatus": "unaffected",
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"product": "PostgreSQL",
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"vendor": "n/a",
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"versions": [
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{
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"lessThan": "18.4",
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"status": "affected",
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"version": "18",
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"versionType": "rpm"
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},
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{
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"lessThan": "17.10",
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"status": "affected",
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"version": "17",
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"versionType": "rpm"
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},
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{
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"lessThan": "16.14",
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"status": "affected",
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"version": "16",
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"versionType": "rpm"
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},
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{
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"lessThan": "15.18",
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"status": "affected",
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"version": "15",
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"versionType": "rpm"
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},
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{
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"lessThan": "14.23",
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"status": "affected",
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"version": "0",
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"versionType": "rpm"
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}
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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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"lang": "en",
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|
"cweId": "CWE-242",
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|
"type": "CWE",
|
|
"description": "Use of Inherently Dangerous Function"
|
|
}
|
|
]
|
|
}
|
|
],
|
|
"references": [
|
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{
|
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"url": "https://www.postgresql.org/support/security/CVE-2026-6477/"
|
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}
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],
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"metrics": [
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{
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"format": "CVSS",
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"cvssV3_1": {
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"version": "3.1",
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"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
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"baseScore": 8.8,
|
|
"baseSeverity": "HIGH"
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|
}
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}
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],
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"workarounds": [
|
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{
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|
"lang": "en",
|
|
"value": "use PQexecPrepared(), not PQfn(..., result_is_int=0, ...) or its lo_* wrappers"
|
|
}
|
|
],
|
|
"credits": [
|
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{
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|
"lang": "en",
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"value": "The PostgreSQL project thanks Yu Kunpeng and Martin Heistermann for reporting this problem."
|
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}
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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": "2026-05-14T00:00:00+00:00",
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"options": [
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{
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"Exploitation": "none"
|
|
},
|
|
{
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|
"Automatable": "no"
|
|
},
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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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"id": "CVE-2026-6477"
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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": "2026-05-15T03:56:18.668Z"
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}
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{
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"lang": "en",
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"value": "RHSA-2026:49908: Red Hat Enterprise Linux AppStream E4S (v.9.2)"
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},
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{
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"lang": "en",
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"value": "RHSA-2026:33497: Red Hat Enterprise Linux AppStream E4S (v.9.2)"
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|
},
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{
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|
"lang": "en",
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"value": "RHSA-2026:29953: Red Hat Enterprise Linux AppStream E4S (v.9.2)"
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},
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{
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"lang": "en",
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"value": "RHSA-2026:49909: Red Hat Enterprise Linux AppStream E4S (v.9.4)"
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},
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{
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"lang": "en",
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"value": "RHSA-2026:33441: Red Hat Enterprise Linux AppStream E4S (v.9.4)"
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},
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{
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"lang": "en",
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"value": "RHSA-2026:26524: Red Hat Enterprise Linux AppStream E4S (v.9.4)"
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},
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{
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"lang": "en",
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"value": "RHSA-2026:29904: Red Hat Enterprise Linux AppStream E4S (v.9.4)"
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},
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{
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"lang": "en",
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"value": "RHSA-2026:50779: Red Hat Enterprise Linux AppStream EUS (v.9.6)"
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},
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{
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"lang": "en",
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"value": "RHSA-2026:32983: Red Hat Enterprise Linux AppStream EUS (v.9.6)"
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},
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{
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"lang": "en",
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"value": "RHSA-2026:26525: Red Hat Enterprise Linux AppStream EUS (v.9.6)"
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},
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{
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"lang": "en",
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"value": "RHSA-2026:29212: Red Hat CodeReady Linux Builder EUS (v.9.6), Red Hat Enterprise Linux AppStream EUS (v.9.6)"
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},
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{
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"lang": "en",
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"value": "RHSA-2026:44308: Red Hat Enterprise Linux AppStream (v. 9)"
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|
},
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{
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|
"lang": "en",
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|
"value": "RHSA-2026:28037: Red Hat Enterprise Linux AppStream (v. 9)"
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|
},
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{
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|
"lang": "en",
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|
"value": "RHSA-2026:26203: Red Hat Enterprise Linux AppStream (v. 9)"
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|
},
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|
{
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|
"lang": "en",
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|
"value": "RHSA-2026:26204: Red Hat Enterprise Linux AppStream (v. 9)"
|
|
},
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{
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|
"lang": "en",
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"value": "RHSA-2026:27741: Red Hat Enterprise Linux AppStream (v. 9), Red Hat Enterprise Linux CodeReady Linux Builder (v. 9)"
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},
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{
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"lang": "en",
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"value": "RHSA-2026:54760: Red Hat Discovery 2"
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},
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{
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"lang": "en",
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"value": "RHSA-2026:21182: Red Hat Hardened Images"
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|
},
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{
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|
"lang": "en",
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|
"value": "RHSA-2026:22878: Red Hat Hardened Images"
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|
},
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{
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|
"lang": "en",
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"value": "RHSA-2026:44481: Red Hat Update Infrastructure 5"
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|
},
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{
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|
"lang": "en",
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|
"value": "RHSA-2026:58981: Red Hat Update Infrastructure 5"
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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": "2026-05-14T14:01:31.087Z",
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"value": "Reported to Red Hat."
|
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},
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{
|
|
"lang": "en",
|
|
"time": "2026-05-14T13:00:12.497Z",
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|
"value": "Made public."
|
|
}
|
|
],
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|
"title": "postgresql: PostgreSQL libpq: Buffer overflow allows server superuser to overwrite client stack memory",
|
|
"workarounds": [
|
|
{
|
|
"lang": "en",
|
|
"value": "Only connect to trusted PostgreSQL servers. Avoid using psql or pg_dump against untrusted or potentially compromised database servers."
|
|
}
|
|
],
|
|
"x_adpType": "supplier",
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|
"x_generator": {
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"engine": "sadp-cli 1.0.0"
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},
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"providerMetadata": {
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"orgId": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c",
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"shortName": "redhat-SADP",
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"dateUpdated": "2026-08-25T12:05:44.549Z"
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}
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}
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]
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}
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} |