Description
An issue was discovered in cpp-peglib through v0.1.12. A NULL pointer dereference exists in the peg::AstOptimizer::optimize() located in peglib.h. It allows an attacker to cause Denial of Service.
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 | retroarch | No fix yet | — |
| Debian 13 | retroarch | No fix yet | — |
| Debian 12 | retroarch | No fix yet | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.10 | salmon +1 | No fix yet | — |
| Ubuntu 26.04 LTS | salmon +1 | No fix yet | — |
| Ubuntu 25.10 | salmon +1 | No fix yet | — |
| Ubuntu 24.04 LTS | salmon | No fix yet | — |
| Ubuntu 22.04 LTS | salmon | No fix yet | — |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 24.04 LTS | retroarch | No fix yet | — |