| Name | CVE-2021-37136 |
| Description | The Bzip2 decompression decoder function doesn't allow setting size restrictions on the decompressed output data (which affects the allocation size used during decompression). All users of Bzip2Decoder are affected. The malicious input can trigger an OOME and so a DoS attack |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| References | DLA-3268-1, DSA-5316-1, ELA-770-1 |
| Debian Bugs | 1014769 |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| netty (PTS) | jessie, jessie (lts) | 1:3.2.6.Final-2+deb8u2 | fixed |
| stretch (security) | 1:4.1.7-2+deb9u3 | vulnerable |
| stretch (lts), stretch | 1:4.1.7-2+deb9u5 | fixed |
| buster (security), buster, buster (lts) | 1:4.1.33-1+deb10u5 | fixed |
| bullseye (security), bullseye | 1:4.1.48-4+deb11u2 | fixed |
| bookworm (security), bookworm | 1:4.1.48-7+deb12u1 | fixed |
| sid, trixie | 1:4.1.48-10 | fixed |
| netty-3.9 (PTS) | jessie, jessie (lts) | 3.9.0.Final-1+deb8u2 | fixed |
| stretch (security) | 3.9.9.Final-1+deb9u1 | fixed |
| stretch (lts), stretch | 3.9.9.Final-1+deb9u2 | fixed |
The information below is based on the following data on fixed versions.
Notes
[stretch] - netty <no-dsa> (Minor issue)
https://github.com/netty/netty/security/advisories/GHSA-grg4-wf29-r9vv
Fixed by: https://github.com/netty/netty/commit/41d3d61a61608f2223bb364955ab2045dd5e4020 (netty-4.1.68.Final)
[jessie] - netty <not-affected> (bzip2 support introduced in v4.1)
- netty-3.9 <not-affected> (bzip2 support introduced in v4.1)