Description
In GNU SASL before 2.2.3, DIGEST-MD5 has a NULL pointer dereference affecting both clients and servers, via a known token with no accompanying = character. This occurs in lib/digest-md5/getsubopt.c.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| GNU | GNU SASL | < 2.2.3 | 2.2.3 |
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 | 2.2.3-1 | — |
| Debian 13 | gsasl | 2.2.2-1.1+deb13u1 | — |
| Debian 12 | gsasl | 2.2.0-1+deb12u1 | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.04 LTS | gsasl | 2.2.2-4ubuntu1.1 | USN-8356-1 |
| Ubuntu 25.10 | gsasl | 2.2.2-2ubuntu1.1 | USN-8356-1 |
| Ubuntu 24.04 LTS | gsasl | 2.2.1-1willsync1ubuntu0.1 | USN-8356-1 |
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 | 2.2.1-160000.3.1 | SUSE-SU-2026:22313-1 |
| SLES 16.0 | gsasl | 2.2.1-160000.3.1 | SUSE-SU-2026:22313-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | gsasl | 2.2.3-1.1 | openSUSE-SU-2026:10891-1 |
| openSUSE Leap 16.0 | gsasl | 2.2.1-160000.3.1 | openSUSE-SU-2026:21004-1 |
Advisories 4
- SUSE-SU-2026:22313-1 Security update for gsasl SUSE / openSUSE Security Updates · Jul 2, 2026
- openSUSE-SU-2026:21004-1 Security update for gsasl SUSE / openSUSE Security Updates · Jun 30, 2026
- USN-8356-1 gsasl vulnerability Ubuntu Security Notices (USN) · Jun 1, 2026
- openSUSE-SU-2026:10891-1 gsasl-2.2.3-1.1 on GA media SUSE / openSUSE Security Updates · May 30, 2026