An issue was discovered in the GNU C Library (glibc) 2.36. When the syslog function is passed a crafted input string larger than 1024 bytes, it reads uninitialized memory from the heap and prints it to the target log file, potentially revealing a portion of the contents of the heap.
Weakness
The product writes sensitive information to a log file.
Affected Software
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Glibc | Gnu | 2.36 (including) | 2.36 (including) |
| Eglibc | Ubuntu | trusty | * |
| Glibc | Ubuntu | upstream | * |
| Glibc | Ubuntu | xenial | * |
Potential Mitigations
Related Attack Patterns
References
- http://packetstormsecurity.com/files/176932/glibc-syslog-Heap-Based-Buffer-Overflow.html
- http://seclists.org/fulldisclosure/2024/Feb/3
- http://www.openwall.com/lists/oss-security/2024/01/30/6
- http://www.openwall.com/lists/oss-security/2024/01/30/8
- https://security.gentoo.org/glsa/202310-03
- https://security.netapp.com/advisory/ntap-20221104-0002/
- https://sourceware.org/bugzilla/show_bug.cgi?id=29536
- http://packetstormsecurity.com/files/176932/glibc-syslog-Heap-Based-Buffer-Overflow.html
- http://seclists.org/fulldisclosure/2024/Feb/3
- http://www.openwall.com/lists/oss-security/2024/01/30/6
- http://www.openwall.com/lists/oss-security/2024/01/30/8
- https://security.gentoo.org/glsa/202310-03
- https://security.netapp.com/advisory/ntap-20221104-0002/
- https://sourceware.org/bugzilla/show_bug.cgi?id=29536