| Name | CVE-2025-49844 |
| Description | Redis is an open source, in-memory database that persists on disk. Versions 8.2.1 and below allow an authenticated user to use a specially crafted Lua script to manipulate the garbage collector, trigger a use-after-free and potentially lead to remote code execution. The problem exists in all versions of Redis with Lua scripting. This issue is fixed in version 8.2.2. To workaround this issue without patching the redis-server executable is to prevent users from executing Lua scripts. This can be done using ACL to restrict EVAL and EVALSHA commands. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| References | DLA-4325-1, DSA-6020-1, DSA-6022-1 |
| Debian Bugs | 1117553, 1117687, 1117690 |
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|---|---|---|
| redict (PTS) | forky, sid | 7.3.6+ds-1 | fixed |
| redis (PTS) | bullseye | 5:6.0.16-1+deb11u2 | vulnerable |
| bullseye (security) | 5:6.0.16-1+deb11u8 | fixed | |
| bookworm | 5:7.0.15-1~deb12u5 | vulnerable | |
| bookworm (security) | 5:7.0.15-1~deb12u6 | fixed | |
| trixie | 5:8.0.2-3 | vulnerable | |
| trixie (security) | 5:8.0.2-3+deb13u1 | fixed | |
| forky, sid | 5:8.0.4-1 | fixed | |
| valkey (PTS) | trixie (security) | 8.1.1+dfsg1-3+deb13u1 | fixed |
| forky, trixie | 8.1.1+dfsg1-3 | vulnerable | |
| sid | 8.1.4+dfsg1-1 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|---|---|---|---|---|---|
| redict | source | (unstable) | 7.3.6+ds-1 | 1117690 | ||
| redis | source | bullseye | 5:6.0.16-1+deb11u8 | DLA-4325-1 | ||
| redis | source | bookworm | 5:7.0.15-1~deb12u6 | DSA-6020-1 | ||
| redis | source | trixie | 5:8.0.2-3+deb13u1 | DSA-6020-1 | ||
| redis | source | (unstable) | 5:8.0.4-1 | 1117553 | ||
| valkey | source | trixie | 8.1.1+dfsg1-3+deb13u1 | DSA-6022-1 | ||
| valkey | source | (unstable) | 8.1.4+dfsg1-1 | 1117687 |
https://www.zerodayinitiative.com/advisories/ZDI-25-933/
https://github.com/redis/redis/security/advisories/GHSA-4789-qfc9-5f9q
https://github.com/redis/redis/commit/d5728cb5795c966c5b5b1e0f0ac576a7e69af539 (8.2.2)
https://github.com/redis/redis/commit/02b16202a30f619628305ed89d3ae7700c280793 (8.0.4)
https://github.com/valkey-io/valkey/commit/6dd003e88feace83e55491f32376f6927896e31e