BSD Portsredis,valkey -- DoS Vulnerability due to unlimited growth of output buffers abused by unauthenticated client
· CVE-2025-21605 · VuXML entry
Axel Mierczuk reports: By default, the Redis configuration does not limit the output buffer of normal clients (see client-output-buffer-limit). Therefore, the output buffer can grow unlimitedly over time. As a result, the service is exhausted and the memory is unavailable. When password authentication is enabled on the Redis server, but no password is provided, the client can still cause the output buffer to grow …
Affected versions
- redis < 7.4.3
- redis72 < 7.2.8
- redis62 < 6.2.18
- valkey < 8.1.1
By system
0 still vulnerable, 6 fixed. Where VuXML applies (FreeBSD, DragonFly, FreeBSD's derivatives) a port is vulnerable while its version is in a range; pkgsrc says itself whether it lists a CVE of this advisory; OpenBSD and MidnightBSD keep no list this site reads, so their row is only an estimate: FreeBSD's ranges applied to upstream's version.
| System | Port | Version | State | Fixed |
|---|---|---|---|---|
| FreeBSD | databases/redis | 8.10.2 | fixed | (456 days after) |
| NetBSD | databases/redis | 8.10.1 | not listed | |
| MidnightBSD | databases/redis | 8.10.2_2 | out of range, by version | |
| DragonFly | databases/redis | 7.4.3 | fixed | |
| FreeBSD | databases/redis72 | 7.2.16 | fixed | (456 days after) |
| MidnightBSD | databases/redis72 | 7.2.16 | out of range, by version | |
| FreeBSD | databases/redis62 | 6.2.24 | fixed | (456 days after) |
| MidnightBSD | databases/redis62 | 6.2.24 | out of range, by version | |
| DragonFly | databases/redis62 | 6.2.18 | fixed | |
| FreeBSD | databases/valkey | 9.1.2 | fixed | (456 days after) |
| MidnightBSD | databases/valkey | 9.1.0 | out of range, by version |