Description
Binaries compiled against targets that use the libssp library in GCC for stack smashing protection (SSP) might allow local users to perform buffer overflow attacks by leveraging lack of the Object Size Checking feature.
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 | gcc-mingw-w64 | No fix yet | — |
| Debian 13 | gcc-mingw-w64 | No fix yet | — |
| Debian 12 | gcc-mingw-w64 | No fix yet | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.10 | mingw-w64 | No fix yet | — |
| Ubuntu 26.04 LTS | mingw-w64 | No fix yet | — |
| Ubuntu 25.10 | mingw-w64 | No fix yet | — |
| Ubuntu 24.04 LTS | mingw-w64 | No fix yet | — |
| Ubuntu 14.04 LTS | mingw-w64 | No fix yet | — |