Description
A vulnerability, which was classified as problematic, was found in GNU libopts up to 27.6. Affected is the function __strstr_sse2. The manipulation leads to memory corruption. Local access is required to approach this attack. The exploit has been disclosed to the public and may be used. This issue was initially reported to the tcpreplay project, but the code maintainer explains, that this "bug appears to be in libopts which is an external library." This vulnerability only affects products that are no longer supported by the maintainer.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| GNU | libopts | 27.0, 27.1, 27.2, 27.3, 27.4, 27.5, 27.6 | — |
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 | autogen | 1:5.18.16-8 | — |
| Debian 13 | autogen | No fix yet | — |
| Debian 12 | autogen | No fix yet | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.10 | autogen | No fix yet | — |
| Ubuntu 26.04 LTS | autogen | No fix yet | — |
| Ubuntu 25.10 | autogen | No fix yet | — |
| Ubuntu 24.04 LTS | autogen | No fix yet | — |
| Ubuntu 22.04 LTS | autogen | No fix yet | — |
Show 4 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 20.04 LTS | autogen | No fix yet | — |
| Ubuntu 18.04 LTS | autogen | No fix yet | — |
| Ubuntu 16.04 LTS | autogen | No fix yet | — |
| Ubuntu 14.04 LTS | autogen | No fix yet | — |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 16.0 | autogen | 5.18.16-160000.3.1 | SUSE-SU-2026:20590-1 |
| SLES 16.0 | autogen | 5.18.16-160000.3.1 | SUSE-SU-2026:20590-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | autogen | 5.18.16-8.1 | openSUSE-SU-2025:15557-1 |
| openSUSE Tumbleweed | tcpreplay | 4.5.1-2.1 | openSUSE-SU-2025:15570-1 |
| openSUSE Leap 16.0 | autogen | 5.18.16-160000.3.1 | openSUSE-SU-2026:20270-1 |
| openSUSE Leap 16.0 | tcpreplay | 4.5.2-bp160.1.1 | openSUSE-SU-2025:20119-1 |
Advisories 5
- openSUSE-SU-2026:20270-1 Security update for autogen SUSE / openSUSE Security Updates · Mar 23, 2026
- openSUSE-SU-2025:20119-1 Security update for tcpreplay SUSE / openSUSE Security Updates · Mar 23, 2026
- openSUSE-SU-2025:15570-1 tcpreplay-4.5.1-2.1 on GA media SUSE / openSUSE Security Updates · Mar 23, 2026
- SUSE-SU-2026:20590-1 Security update for autogen SUSE / openSUSE Security Updates · Mar 23, 2026
- openSUSE-SU-2025:15557-1 autogen-5.18.16-8.1 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
References
- VDB-319242 | GNU libopts __strstr_sse2 memory corruption vdb-entry technical-description
- VDB-319242 | CTI Indicators (IOB, IOC, IOA) signature permissions-required
- Submit #623632 | tcpreplay tcpliveplay tcpreplay version 6fcbf03 (the newest master in https://github.com/appneta/tcpreplay) Segmentation Fault third-party-advisory
- https://github.com/appneta/tcpreplay/issues/957 issue-tracking
- https://github.com/appneta/tcpreplay/issues/957#issuecomment-3124774393 issue-tracking
- https://drive.google.com/file/d/1yjKOHxvL_9xExy4QUb5x43dxci1x59ts/view?usp=sharing exploit
- https://www.gnu.org/ product