Description
The _xrealloc function in xlsp_xmalloc.c in OpenSLP 2.0.0 allows remote attackers to cause a denial of service (NULL pointer dereference and crash) via a large number of crafted packets, which triggers a memory allocation failure.
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.
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 12 SP2 | openslp | 2.0.0-18.2.1 | SUSE-SU-2018:0100-1 |
| SLES 12 SP1 | openslp | 2.0.0-17.1 | SUSE-SU-2016:2661-1 |
Show 2 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 12 SP2 | openslp | 2.0.0-18.2.1 | SUSE-SU-2018:0100-1 |
| SLES for SAP 12 SP1 | openslp | 2.0.0-17.1 | SUSE-SU-2016:2661-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | openslp | 2.0.0-8.1 | openSUSE-SU-2024:10065-1 |
Azure Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Azure Linux 3 | openslp | No fix yet | — |
| Azure Linux 2 (CBL-Mariner) | openslp | No fix yet | — |
Advisories 3
- SUSE-SU-2018:0100-1 Security update for openslp SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2016:2661-1 Security update for openslp SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2024:10065-1 openslp-2.0.0-8.1 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026