| Name | CVE-2021-29477 |
| Description | Redis is an open source (BSD licensed), in-memory data structure store, used as a database, cache, and message broker. An integer overflow bug in Redis version 6.0 or newer could be exploited using the `STRALGO LCS` command to corrupt the heap and potentially result with remote code execution. The problem is fixed in version 6.2.3 and 6.0.13. An additional workaround to mitigate the problem without patching the redis-server executable is to use ACL configuration to prevent clients from using the `STRALGO LCS` command. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| Debian Bugs | 988045 |
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|---|---|---|
| redis (PTS) | jessie, jessie (lts) | 2:2.8.17-1+deb8u13 | fixed |
| stretch (security) | 3:3.2.6-3+deb9u9 | fixed | |
| stretch (lts), stretch | 3:3.2.6-3+deb9u13 | fixed | |
| buster, buster (lts) | 5:5.0.14-1+deb10u6 | fixed | |
| buster (security) | 5:5.0.14-1+deb10u5 | fixed | |
| bullseye | 5:6.0.16-1+deb11u2 | fixed | |
| bullseye (security) | 5:6.0.16-1+deb11u4 | 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 | jessie | (not affected) | |||
| redis | source | stretch | (not affected) | |||
| redis | source | buster | (not affected) | |||
| redis | source | (unstable) | 5:6.0.13-1 | 988045 |
[buster] - redis <not-affected> (Vulnerable code not present)
[stretch] - redis <not-affected> (Vulnerable code not present)
https://groups.google.com/g/redis-db/c/6GSWzTW0PR8/m/8FbdIEEoBAAJ
https://github.com/redis/redis/commit/f0c5f920d0f88bd8aa376a2c05af4902789d1ef9
https://github.com/redis/redis/security/advisories/GHSA-vqxj-26vj-996g
[jessie] - redis <not-affected> (Vulnerable code not present)