CVE-2023-23456
upx-ucl - security update
5.5
MEDIUM
CVSS 3.1
EPSS 0.03%
Description
A heap-based buffer overflow issue was discovered in UPX in PackTmt::pack() in p_tmt.cpp file. The flow allows an attacker to cause a denial of service (abort) via a crafted file.
How to fix CVE-2023-23456
To remediate CVE-2023-23456, upgrade the affected package to a fixed version below.
- Debian/upx-ucl—upgrade to 3.96-2+deb11u1 or later
- —upgrade to 3.96-2+deb11u1 or later
Is CVE-2023-23456 being exploited?
Low — EPSS is 0.0%, meaning exploitation activity has not been observed at scale.
Affected packages (2)
- from 0, < 3.96-2+deb11u1
- from 0, < 3.96-2+deb11u1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM5.5 | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H |