Description
libosmocore through 1.14.1 contains an out-of-bounds read in the CBSP WRITE-REPLACE decoder in src/gsm/cbsp.c. This allows a remote attacker to cause a denial of service.
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 | libosmocore | 1.14.2-1 | — |
| Debian 13 | libosmocore | No fix yet | — |
| Debian 12 | libosmocore | No fix yet | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.10 | libosmocore | No fix yet | — |
| Ubuntu 26.04 LTS | libosmocore | No fix yet | — |
| Ubuntu 24.04 LTS | libosmocore | No fix yet | — |
| Ubuntu 22.04 LTS | libosmocore | No fix yet | — |
| Ubuntu 20.04 LTS | libosmocore | No fix yet | — |
Show 2 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 18.04 LTS | libosmocore | No fix yet | — |
| Ubuntu 16.04 LTS | libosmocore | No fix yet | — |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | libosmocore | 1.14.2-2.1 | openSUSE-SU-2026:12388-1 |
| openSUSE Leap 16.0 | libosmocore | 1.14.2-bp160.1.1 | openSUSE-SU-2026:22220-1 |
Advisories 2
- openSUSE-SU-2026:22220-1 Security update for libosmocore SUSE / openSUSE Security Updates · Nov 4, 2026
- openSUSE-SU-2026:12388-1 libosmocodec-devel-1.14.2-2.1 on GA media SUSE / openSUSE Security Updates · Nov 3, 2026