Description
GNU SASL libgsasl server-side read-out-of-bounds with malicious authenticated GSS-API client
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| GNU | GNU SASL | >=0.0.0, <2.0.1 | — |
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 | gsasl | 2.0.1-1 | — |
| Debian 13 | gsasl | 2.0.1-1 | — |
| Debian 12 | gsasl | 2.0.1-1 | — |
| Debian 11 | gsasl | 1.10.0-4+deb11u1 | DSA-5189-1 |
| Debian 10 | gsasl | 1.8.0-8+deb10u1 | DSA-5189-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 22.04 LTS | gsasl | 1.10.0-5ubuntu0.1~esm1 | USN-6169-1 |
| Ubuntu Pro 20.04 LTS | gsasl | 1.8.1-1ubuntu0.1~esm1 | USN-6169-1 |
| Ubuntu Pro 18.04 LTS | gsasl | 1.8.0-8ubuntu3+esm2 | USN-6169-1 |
Show 2 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 16.04 LTS | gsasl | 1.8.0-8ubuntu2+esm1 | USN-6169-1 |
| Ubuntu Pro 14.04 LTS | gsasl | 1.8.0-2ubuntu2+esm1 | USN-6169-1 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SUSE Manager Server Module 4.3 | libgsasl | 1.8.0-150400.3.3.1 | SUSE-SU-2022:3563-1 |
| SUSE Manager Server Module 4.2 | libgsasl | 1.8.0-150300.3.3.1 | SUSE-SU-2022:3561-1 |
| SUSE Manager Server Module 4.1 | libgsasl | 1.8.0-150200.3.3.1 | SUSE-SU-2022:3562-1 |
Show 3 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SUSE Manager Proxy Module 4.3 | libgsasl | 1.8.0-150400.3.3.1 | SUSE-SU-2022:3563-1 |
| SUSE Manager Proxy Module 4.2 | libgsasl | 1.8.0-150300.3.3.1 | SUSE-SU-2022:3561-1 |
| SUSE Manager Proxy Module 4.1 | libgsasl | 1.8.0-150200.3.3.1 | SUSE-SU-2022:3562-1 |
Advisories 5
- USN-6169-1 gsasl vulnerability Ubuntu Security Notices (USN) · Jun 29, 2026
- DSA-5189-1 gsasl - security update Debian Security (DSA / DLA) · Mar 9, 2026
- SUSE-SU-2022:3561-1 Security update for libgsasl SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2022:3562-1 Security update for libgsasl SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2022:3563-1 Security update for libgsasl SUSE / openSUSE Security Updates · Feb 4, 2026