CVE-2023-0687 Memory corruption in C Library
A buffer overflow in the gmon component of the GNU C Library could allow code execution, though exploitation requires specific profiling configurations and is considered doubtful.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2023-0687?
CVE-2023-0687 is a medium-severity memory corruption vulnerability in Gnu Glibc, published on 6 Feb 2023. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
A vulnerability was found in GNU C Library 2.38. It has been declared as critical. This vulnerability affects the function __monstartup of the file gmon.c of the component Call Graph Monitor. The manipulation leads to buffer overflow. It is recommended to apply a patch to fix this issue. VDB-220246 is the identifier assigned to this vulnerability. NOTE: The real existence of this vulnerability is still doubted at the moment. The inputs that induce this vulnerability are basically addresses of the running application that is built with gmon enabled. It's basically trusted input or input that needs an actual security flaw to be compromised or controlled.
Weakness: CWE-120
Which versions are affected by CVE-2023-0687?
It affects 1 product.
Linux distribution packages (16)
glibc SUSE:Enterprise Storage 7.1 | All versions | 2.31-150300.46.1 |
glibc SUSE:Linux Enterprise High Performance Computing 15 SP3-ESPOS | All versions | 2.31-150300.46.1 |
glibc SUSE:Linux Enterprise High Performance Computing 15 SP3-LTSS | All versions | 2.31-150300.46.1 |
glibc SUSE:Linux Enterprise Micro 5.1 | All versions | 2.31-150300.46.1 |
glibc SUSE:Linux Enterprise Micro 5.2 | All versions | 2.31-150300.46.1 |
glibc SUSE:Linux Enterprise Micro 5.3 | All versions | 2.31-150300.46.1 |
glibc SUSE:Linux Enterprise Micro 5.4 | All versions | 2.31-150300.46.1 |
glibc SUSE:Linux Enterprise Module for Basesystem 15 SP4 | All versions | 2.31-150300.46.1 |
glibc SUSE:Linux Enterprise Module for Development Tools 15 SP4 | All versions | 2.31-150300.46.1 |
glibc SUSE:Linux Enterprise Real Time 15 SP3 | All versions | 2.31-150300.46.1 |
glibc SUSE:Linux Enterprise Server 15 SP3-LTSS | All versions | 2.31-150300.46.1 |
glibc SUSE:Linux Enterprise Server for SAP Applications 15 SP3 | All versions | 2.31-150300.46.1 |
glibc SUSE:Manager Proxy 4.2 | All versions | 2.31-150300.46.1 |
glibc SUSE:Manager Server 4.2 | All versions | 2.31-150300.46.1 |
glibc openSUSE:Leap 15.4 | All versions | 2.31-150300.46.1 |
glibc openSUSE:Leap Micro 5.3 | All versions | 2.31-150300.46.1 |
Products include Gnu Glibc.
How do I fix CVE-2023-0687?
Apply the vendor's patch.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2023-0687 being exploited?
There is no known exploitation of CVE-2023-0687 in the wild and no public exploit code.
Other vulnerabilities in Gnu Glibc
Sources
Also known as GHSA-5r4p-4pqv-gqhw, MINI-4mhv-fqj9-c2qq, OESA-2023-1131, SUSE-SU-2023:1718-1, SUSE-SU-2023:1718-2.