CVE-2026-120830
Libslirp: libslirp: out-of-bounds heap read in icmp_forward_error() leading to information disclosure
Description
A flaw was found in libslirp in icmp_forward_error(). When building an ICMP error response, the length of the quoted original IPv4 packet was taken from the IP header without clamping it to the actual buffer length. A truncated or malformed packet could cause an out-of-bounds heap read, leaking host memory into the ICMP error packet returned to a guest or container.
CWE
Affected
Red Hat Red Hat Enterprise Linux 10; Red Hat Red Hat Enterprise Linux 8; Red Hat Red Hat Enterprise Linux 9; Red Hat Red Hat OpenShift Container Platform 4; Red Hat Red Hat OpenShift Container Platform 4; Red Hat Red Hat OpenShift Container Platform 4; Red Hat Red Hat OpenShift Container Platform 5