CVE-2023-39976
- Source
- https://nvd.nist.gov/vuln/detail/CVE-2023-39976
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2023-39976.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CVE-2023-39976
- Downstream
- Related
- Published
- 2023-08-08T06:15:46Z
- Modified
- 2025-10-16T10:06:07.328135Z
- Severity
-
- 9.8 (Critical) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
- Summary
- [none]
- Details
-
log_blackbox.c in libqb before 2.0.8 allows a buffer overflow via long log messages because the header size is not considered.
- References
-
- https://github.com/ClusterLabs/libqb/commit/1bbaa929b77113532785c408dd1b41cd0521ffc8
- https://github.com/ClusterLabs/libqb/pull/490
- https://github.com/ClusterLabs/libqb/compare/v2.0.7...v2.0.8
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/KECNF7LFBPE57XSBT6EM7ACVMIBP63WH/
Affected packages
Git / github.com/clusterlabs/libqb
Affected ranges
- Type
- GIT
- Repo
- https://github.com/clusterlabs/libqb
- Events
-
Introduced0 Unknown introduced commit / All previous commits are affectedFixed
Affected versions
1.*
1.9.0
libqb-0.*
libqb-0.0.0
libqb-0.1.0
v0.*
v0.1.0
v0.10.0
v0.10.1
v0.11.0
v0.11.1
v0.12.0
v0.13.0
v0.14.0
v0.14.1
v0.14.2
v0.14.3
v0.14.4
v0.15.0
v0.16.0
v0.17.0
v0.17.0.rc1
v0.17.1
v0.17.1-rc1
v0.17.2
v0.2.0
v0.3.0
v0.4.0
v0.4.1
v0.5.0
v0.5.1
v0.7.0
v0.8.0
v0.8.1
v0.9.0
v1.*
v1.0
v1.0.1
v1.0.2
v1.0.3
v1.0rc1
v1.0rc2
v1.0rc3
v1.0rc4
v1.9.0
v1.9.1
v2.*
v2.0.0
v2.0.1
v2.0.2
v2.0.3
v2.0.4
v2.0.5
v2.0.6
v2.0.7
Database specific
vanir_signatures
[
{
"deprecated": false,
"id": "CVE-2023-39976-c6b71c89",
"signature_type": "Line",
"target": {
"file": "lib/log_blackbox.c"
},
"digest": {
"line_hashes": [
"234310116874441598169012739281943531554",
"88767074367043050548443721587077693599",
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"263366324407121559883848862156710781083",
"57683120494871408456411132952730974543"
],
"threshold": 0.9
},
"source": "https://github.com/clusterlabs/libqb/commit/1bbaa929b77113532785c408dd1b41cd0521ffc8",
"signature_version": "v1"
},
{
"deprecated": false,
"id": "CVE-2023-39976-e46cc8c4",
"signature_type": "Function",
"target": {
"file": "lib/log_blackbox.c",
"function": "_blackbox_vlogger"
},
"digest": {
"length": 1476.0,
"function_hash": "144833620041746192361028286524335023369"
},
"source": "https://github.com/clusterlabs/libqb/commit/1bbaa929b77113532785c408dd1b41cd0521ffc8",
"signature_version": "v1"
},
{
"deprecated": false,
"id": "CVE-2023-39976-e7ec4eb4",
"signature_type": "Function",
"target": {
"file": "tests/check_log.c",
"function": "START_TEST"
},
"digest": {
"length": 878.0,
"function_hash": "14394832875997190676591766158283567814"
},
"source": "https://github.com/clusterlabs/libqb/commit/1bbaa929b77113532785c408dd1b41cd0521ffc8",
"signature_version": "v1"
},
{
"deprecated": false,
"id": "CVE-2023-39976-f763f945",
"signature_type": "Line",
"target": {
"file": "tests/check_log.c"
},
"digest": {
"line_hashes": [
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"291825239214008548035429337321196903562",
"181251568651179490113890241814114365331",
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],
"threshold": 0.9
},
"source": "https://github.com/clusterlabs/libqb/commit/1bbaa929b77113532785c408dd1b41cd0521ffc8",
"signature_version": "v1"
}
]