Skip to content

CVE-2026-31912 on Cyberus Linux 26.05

Aliases: CVE-2026-31912

Packages: libpcap

Status: Plausible

Advisory Information

libpcap BPF interpreter detects neither reaching the end of the filter program buffer due to lack of a return instruction nor executing a jump instruction with an offset that translates to a pointer outside of the buffer. In particular uncommon use cases a crafted filter program can cause the interpreter to try reading the OS process memory in the 32GiB around the buffer on 64-bit architectures and in the entire address space on 32-bit architectures.

Updates

2026-09-09 21:29 CEST

Metadata changes:

  • Status for package libpcap: “Plausible”

2026-09-09 21:29 CEST

Metadata changes:

  • Status for package libpcap: “New”