Description
GNU SASL before 2.2.4 lacks sanitization of a short challenge in _gsasl_ntlm_client_step in the NTLM client, which could result in memory disclosure via a crafted server.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| GNU | GNU SASL | < 2.2.4 | 2.2.4 |
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 | 2.2.4-1 | — |
| Debian 13 | gsasl | 2.2.2-1.1+deb13u2 | — |
| Debian 12 | gsasl | 2.2.0-1+deb12u2 | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.04 LTS | gsasl | No fix yet | — |
| Ubuntu 25.10 | gsasl | No fix yet | — |
| Ubuntu 24.04 LTS | gsasl | No fix yet | — |
Show 5 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 22.04 LTS | gsasl | No fix yet | — |
| Ubuntu Pro 20.04 LTS | gsasl | No fix yet | — |
| Ubuntu Pro 18.04 LTS | gsasl | No fix yet | — |
| Ubuntu Pro 16.04 LTS | gsasl | No fix yet | — |
| Ubuntu Pro 14.04 LTS | gsasl | No fix yet | — |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 16.0 | gsasl | 2.2.1-160000.4.1 | SUSE-SU-2026:22631-1 |
| SLES 16.0 | gsasl | 2.2.1-160000.4.1 | SUSE-SU-2026:22631-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Leap 16.0 | gsasl | 2.2.1-160000.4.1 | openSUSE-SU-2026:21303-1 |
Advisories 2
- SUSE-SU-2026:22631-1 Security update for gsasl SUSE / openSUSE Security Updates · Jul 17, 2026
- openSUSE-SU-2026:21303-1 Security update for gsasl SUSE / openSUSE Security Updates · Jul 13, 2026