| Name | CVE-2023-23456 |
| 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. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| Debian Bugs | 1033258 |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| upx-ucl (PTS) | jessie | 3.91-1 | vulnerable |
| stretch | 3.91-4 | vulnerable |
| buster | 3.95-1 | vulnerable |
| bullseye | 3.96-2 | vulnerable |
| sid, trixie | 4.2.4-1 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|
| upx-ucl | source | jessie | (unfixed) | end-of-life | | |
| upx-ucl | source | stretch | (unfixed) | end-of-life | | |
| upx-ucl | source | (unstable) | 4.2.2-1 | | | 1033258 |
Notes
[bullseye] - upx-ucl <no-dsa> (Minor issue)
[buster] - upx-ucl <no-dsa> (Minor issue)
https://bugzilla.redhat.com/show_bug.cgi?id=2160381
https://github.com/upx/upx/commit/510505a85cbe45e51fbd470f1aa8b02157c429d4 (v4.0.2)
https://github.com/upx/upx/issues/632