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CVE-2026-18238 on Cyberus Linux 26.05

Aliases: CVE-2026-18238

Packages: libpcap

Status: Plausible

Advisory Information

The rpcap client code that processes a RPCAP_MSG_PACKET message received from the server incorrectly validates its headers. A malicious server can send a crafted message and cause the client to treat up to 20 bytes of the client process memory beyond the end of the buffer as if it was a part of the captured packet.

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”