| Name | CVE-2019-17543 |
| Description | LZ4 before 1.9.2 has a heap-based buffer overflow in LZ4_write32 (related to LZ4_compress_destSize), affecting applications that call LZ4_compress_fast with a large input. (This issue can also lead to data corruption.) NOTE: the vendor states "only a few specific / uncommon usages of the API are at risk." |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub code/issues, web search, more) |
| NVD severity | medium |
| Debian Bugs | 943680 |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| lz4 (PTS) | stretch | 0.0~r131-2 | vulnerable |
| stretch (security) | 0.0~r131-2+deb9u1 | vulnerable |
| buster, buster (security) | 1.8.3-1+deb10u1 | vulnerable |
| bookworm, sid, bullseye | 1.9.3-2 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|
| lz4 | source | (unstable) | 1.9.2-1 | low | | 943680 |
Notes
[buster] - lz4 <ignored> (Minor issue)
[stretch] - lz4 <ignored> (Minor issue)
[jessie] - lz4 <no-dsa> (Very hard to exploit, low risk)
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=15941
https://github.com/lz4/lz4/pull/756
https://github.com/lz4/lz4/pull/760