| Name | CVE-2020-27799 |
| Description | A heap-based buffer over-read was discovered in the acc_ua_get_be32 function in miniacc.h in UPX 4.0.0 via a crafted Mach-O file. |
| 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 | 4.2.4-1.1 | 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/391
https://github.com/upx/upx/commit/4e2fdb464a885c694408552c31739cb04b77bdcf