CVE-2023-5156
Glibc: dos due to memory leak in getaddrinfo.c
- Published
- Updated
- Reserved
- Assigned by
- redhat
Description
A flaw was found in the GNU C Library. A recent fix for CVE-2023-4806 introduced the potential for a memory leak, which may result in an application crash.
Timeline
ID reserved
By redhat
Published
- 3 years later
· 3 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| redhatCNA (assigner) | 3.1 | High7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
| NVDNVD · Modified | 3.1 | High7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
- EPSS (exploitation in 30 days)
- 1.7% · top 23% of all CVEs (7 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: yes · Technical impact: partial
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.5.
Weakness
Affected products
Red Hat · Red Hat Enterprise Linux 6
All versions: unknown
Red Hat · Red Hat Enterprise Linux 6
All versions: unknown
Red Hat · Red Hat Enterprise Linux 7
All versions: unknown
Red Hat · Red Hat Enterprise Linux 7
All versions: unknown
Red Hat · Red Hat Enterprise Linux 8
All versions: unaffected
Red Hat · Red Hat Enterprise Linux 9
All versions: unaffected
References (11)
- https://access.redhat.com/security/cve/CVE-2023-5156 (opens in a new tab)vdb-entryx_refsource_REDHATx_transferred
- RHBZ#2240541 (opens in a new tab)issue-trackingx_refsource_REDHATx_transferred
- https://sourceware.org/bugzilla/show_bug.cgi?id=30884 (opens in a new tab)x_transferred
- https://sourceware.org/git/?p=glibc.git;a=commitdiff;h=ec6b95c3303c700eb89eebeda2d7264cc184a796 (opens in a new tab)x_transferred
- http://www.openwall.com/lists/oss-security/2023/10/03/4 (opens in a new tab)x_transferred
- http://www.openwall.com/lists/oss-security/2023/10/03/5 (opens in a new tab)x_transferred
- http://www.openwall.com/lists/oss-security/2023/10/03/6 (opens in a new tab)x_transferred
- http://www.openwall.com/lists/oss-security/2023/10/03/8 (opens in a new tab)x_transferred
- https://security.gentoo.org/glsa/202402-01 (opens in a new tab)x_transferred
- https://cert-portal.siemens.com/productcert/html/ssa-831302.html (opens in a new tab)
- https://cert-portal.siemens.com/productcert/html/ssa-398330.html (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2023-5156)Record last updated .