Vulnerability · Published Sep 25, 2023 · Assigned by redhat
CVE-2023-5156Glibc: dos due to memory leak in getaddrinfo.c
High 7.5
In plain English
A high-severity memory leak in Red Hat Enterprise Linux 6 from Red Hat. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.6% (higher than 76% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)7.5High
Exploit odds (30 days)1.6%top 23.7% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official 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.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:13 | glibc | 2.37-11 | DEBIAN-CVE-2023-5156 |
| Debian:14 | glibc | 2.37-11 | DEBIAN-CVE-2023-5156 |
| Ubuntu:22.04:LTS | glibc | 2.35-0ubuntu3.5 | USN-6541-1 |
| Ubuntu:22.04:LTS | glibc | 2.35-0ubuntu3.5 | UBUNTU-CVE-2023-5156 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Red Hat | Red Hat Enterprise Linux 6 | see references |
| Red Hat | Red Hat Enterprise Linux 6 | see references |
| Red Hat | Red Hat Enterprise Linux 7 | see references |
| Red Hat | Red Hat Enterprise Linux 7 | see references |
| Red Hat | Red Hat Enterprise Linux 8 | see references |
| Red Hat | Red Hat Enterprise Linux 9 | see references |
Weakness: CWE-401 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
References
- https://access.redhat.com/security/cve/CVE-2023-5156 vdb-entry, x_refsource_REDHAT
- RHBZ#2240541 issue-tracking, x_refsource_REDHAT
- https://sourceware.org/bugzilla/show_bug.cgi?id=30884
- https://sourceware.org/git/?p=glibc.git;a=commitdiff;h=ec6b95c3303c700eb89eebeda2d7264cc184a796
- http://www.openwall.com/lists/oss-security/2023/10/03/4 x_transferred
- http://www.openwall.com/lists/oss-security/2023/10/03/5 x_transferred
- http://www.openwall.com/lists/oss-security/2023/10/03/6 x_transferred
- http://www.openwall.com/lists/oss-security/2023/10/03/8 x_transferred
- https://security.gentoo.org/glsa/202402-01 x_transferred
- https://cert-portal.siemens.com/productcert/html/ssa-831302.html
- https://cert-portal.siemens.com/productcert/html/ssa-398330.html