| Name | CVE-2021-43311 |
| Description | A heap-based buffer overflow was discovered in upx, during the generic pointer 'p' points to an inaccessible address in func get_le32(). The problem is essentially caused in PackLinuxElf32::elf_lookup() at p_lx_elf.cpp:5382. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| upx-ucl (PTS) | bullseye | 3.96-2 | vulnerable |
| bullseye (security) | 3.96-2+deb11u1 | 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 | (unstable) | 4.2.2-1 | unimportant | | |
Notes
https://github.com/upx/upx/issues/380
https://github.com/upx/upx/commit/b327645e648d46c8730be80730a171cf74cfe338
Crash in CLI tool, no security impact