CVE-2023-6246
High
Description
A heap-based buffer overflow was found in the __vsyslog_internal function of the glibc library. This function is called by the syslog and vsyslog functions. This issue occurs when the openlog function was not called, or called with the ident argument set to NULL, and the program name (the basename of argv[0]) is bigger than 1024 bytes, resulting in an application crash or local privilege escalation. This issue affects glibc 2.36 and newer.
SeverityHigh
CVSS8.4
Exploit probability—
Product
Gnu Glibc
PublishedJan 31, 2024
First seenJan 31, 2024
Weakness typeCWE-122CWE-122
How to fix
Update
- gnu glibc2.39 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| gnu glibc | 2.36 ≤ v < 2.39 | 2.39 |
| fedoraproject fedora | 38, 39 | — |
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