CVE-2024-56406
perl - security update
8.4
HIGH
CVSS 3.1
EPSS 0.07%
Description
A heap buffer overflow vulnerability was discovered in Perl. Release branches 5.34, 5.36, 5.38 and 5.40 are affected, including development versions from 5.33.1 through 5.41.10. When there are non-ASCII bytes in the left-hand-side of the `tr` operator, `S_do_trans_invmap` can overflow the destination pointer `d`. $ perl -e '$_ = "\x{FF}" x 1000000; tr/\xFF/\x{100}/;' Segmentation fault (core dumped) It is believed that this vulnerability can enable Denial of Service and possibly Code Execution attacks on platforms that lack sufficient defenses.
How to fix CVE-2024-56406
To remediate CVE-2024-56406, upgrade the affected package to a fixed version below.
- —upgrade to 5.36.2-r1 or later
- —upgrade to 5.36.0-7+deb12u2 or later
- —upgrade to 5.36.0-7+deb12u2 or later
Is CVE-2024-56406 being exploited?
Low — EPSS is 0.1%, meaning exploitation activity has not been observed at scale.
Affected packages (3)
- from 0, < 5.36.2-r1
- from 0, < 5.36.0-7+deb12u2
- from 0, < 5.36.0-7+deb12u2
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH8.4 | CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |