CVE-2023-6779
High
Description
An off-by-one 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 these functions are called with a message bigger than INT_MAX bytes, leading to an incorrect calculation of the buffer size to store the message, resulting in an application crash. This issue affects glibc 2.37 and newer.
SeverityHigh
CVSS8.2
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 | 2.37 ≤ v < 2.39 | 2.39 |
| fedoraproject fedora | 38, 39 | — |
Check your version
Choose the product and enter the version you run to see whether it falls in the affected range.
In the Intelligence 360 plan
Attack Surface Management
See the assets tied to your domains, the technologies they run and known vulnerabilities in one list.