Description
async.c and dict.c in libhiredis.a in hiredis through 0.14.0 allow a NULL pointer dereference because malloc return values are unchecked.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | hiredis | 0.14.0-5 | — |
| Debian 13 | hiredis | 0.14.0-5 | — |
| Debian 12 | hiredis | 0.14.0-5 | — |
| Debian 8 | hiredis | 0.11.0-4+deb8u1 | DLA-2083-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 18.04 LTS | hiredis | 0.13.3-2.2ubuntu0.1~esm1 | USN-9070-1 |
| Ubuntu Pro 16.04 LTS | hiredis | 0.13.3-2ubuntu0.1~esm1 | USN-9070-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | hiredis | 1.0.0-2.6 | openSUSE-SU-2024:10844-1 |
Advisories 3
- USN-9070-1 hiredis vulnerability Ubuntu Security Notices (USN) · Nov 13, 2026
- DLA-2083-1 hiredis - security update Debian Security (DSA / DLA) · Mar 9, 2026
- openSUSE-SU-2024:10844-1 hiredis-1.0.0-2.6 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
References
- https://github.com/redis/hiredis/issues/747
- [debian-lts-announce] 20200129 [SECURITY] [DLA 2083-1] hiredis security update mailing-list
- FEDORA-2020-f6cc7883b8 vendor-advisory
- FEDORA-2020-53a54ef986 vendor-advisory