| Name | CVE-2021-3470 |
| Description | A heap overflow issue was found in Redis in versions before 5.0.10, before 6.0.9 and before 6.2.0 when using a heap allocator other than jemalloc or glibc's malloc, leading to potential out of bound write or process crash. Effectively this flaw does not affect the vast majority of users, who use jemalloc or glibc malloc. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|---|---|---|
| redis (PTS) | jessie, jessie (lts) | 2:2.8.17-1+deb8u12 | vulnerable |
| stretch (security) | 3:3.2.6-3+deb9u9 | vulnerable | |
| stretch (lts), stretch | 3:3.2.6-3+deb9u12 | vulnerable | |
| buster (security), buster, buster (lts) | 5:5.0.14-1+deb10u5 | vulnerable | |
| bullseye | 5:6.0.16-1+deb11u2 | fixed | |
| bullseye (security) | 5:6.0.16-1+deb11u3 | fixed | |
| bookworm (security), bookworm | 5:7.0.15-1~deb12u1 | fixed | |
| sid, trixie | 5:7.0.15-2 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|---|---|---|---|---|---|
| redis | source | (unstable) | 5:6.0.9-1 | unimportant |
https://github.com/redis/redis/pull/7963
https://github.com/redis/redis/commit/9824fe3e392caa04dc1b4071886e9ac402dd6d95
Only an issue if not using a heap allocator other than jemalloc or glibc's malloc