CVE-2023-6857

When resolving a symlink, a race may occur where the buffer passed to `readlink` may actually be smaller than necessary

published December 19, 2023

CVSS
—
EPSS
1%
Percentile
51.2
In the wild
Unconfirmed
What it is

When resolving a symlink, a race may occur where the buffer passed to `readlink` may actually be smaller than necessary.

*This bug only affects Firefox on Unix-based operating systems (Android, Linux, MacOS). Windows is unaffected.* This vulnerability affects Firefox ESR < 115.6, Thunderbird < 115.6, and Firefox < 121.

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.00665 · 51.2th percentile
Published
2023-12-19T13:38Z
EPSS history
Timeline
  • 19 DEC 13:38Z
    When resolving a symlink, a race may occur where the buffer passed to `readlink` may actually be smaller than necessary
    cvelistv5