CVE-2023-5156
Published: 25 September 2023
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.
Notes
| Author | Note |
|---|---|
| ccdm94 | as of 2023-10-19, no releases are vulnerable to this CVE, as the fix for CVE-2023-4806 has not yet been applied to glibc in any of these releases. Whenever CVE-2023-4806 is patched, the patch for CVE-2023-5156 must be included as well in order to avoid regressions and the inclusion of a new vulnerability in glibc. the backports used to patch xenial, bionic and focal for CVE-2023-4806 do not introduce this vulnerability. |
Priority
Status
| Package | Release | Status |
|---|---|---|
|
eglibc Launchpad, Ubuntu, Debian |
bionic |
Does not exist
|
| focal |
Does not exist
|
|
| jammy |
Does not exist
|
|
| lunar |
Does not exist
|
|
| mantic |
Does not exist
|
|
| noble |
Does not exist
|
|
| trusty |
Deferred
|
|
| upstream |
Needs triage
|
|
| xenial |
Does not exist
|
|
|
glibc Launchpad, Ubuntu, Debian |
bionic |
Not vulnerable
(code not present)
|
| focal |
Not vulnerable
(code not present)
|
|
| jammy |
Released
(2.35-0ubuntu3.5)
|
|
| lunar |
Released
(2.37-0ubuntu2.2)
|
|
| mantic |
Released
(2.38-1ubuntu5)
|
|
| noble |
Released
(2.38-1ubuntu5)
|
|
| trusty |
Ignored
(end of standard support)
|
|
| upstream |
Needs triage
|
|
| xenial |
Not vulnerable
(code not present)
|
|
|
Patches: upstream: https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=ec6b95c3303c700eb89eebeda2d7264cc184a796 upstream: https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=5ee59ca371b99984232d7584fe2b1a758b4421d3 upstream: https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=4473d1b87d04b25cdd0e0354814eeaa421328268 upstream: https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=856bac55f98dc840e7c27cfa82262b933385de90 upstream: https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=17092c0311f954e6f3c010f73ce3a78c24ac279a upstream: https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=8006457ab7e1cd556b919f477348a96fe88f2e49 |
||
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 7.5 |
| Attack vector | Network |
| Attack complexity | Low |
| Privileges required | None |
| User interaction | None |
| Scope | Unchanged |
| Confidentiality | None |
| Integrity impact | None |
| Availability impact | High |
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
References
- https://sourceware.org/pipermail/libc-alpha/2023-September/151691.html
- https://access.redhat.com/security/cve/CVE-2023-5156
- https://ubuntu.com/security/notices/USN-6541-1
- https://ubuntu.com/security/notices/USN-6541-2
- https://www.cve.org/CVERecord?id=CVE-2023-5156
- NVD
- Launchpad
- Debian