CVE-2026-115449
CVE-2026-115449 · Libslirp: libslirp: icmp echo reply length desynchronization leaks host ip to guest
This page contains facts from public vulnerability sources. Check the original advisory before updating.
A flaw was found in libslirp. When handling ICMP echo requests, the reply length is not updated to match the actual data received from the host. Under specific conditions where the normal ICMP socket is unavailable, this length mismatch causes the host's real IP address to be leaked to the guest in the echo reply, breaking the NAT isolation that user-mode networking is expected to provide.
CVSS 3.5 · Low · EPSS 0.2%
- Published
- Updated
Stack: system
Affected products and versions
red hat enterprise linux 10
No fix published
red hat enterprise linux 8
No fix published
red hat enterprise linux 9
No fix published
red hat openshift container platform 4
No fix published
libslirp Debian:12
- Versions
- 4.7.0-1
- 4.8.0-1
- 4.9.1-1
- 4.9.2-1
- 4.9.3-1
- 4.9.4-1
- 4.9.5-1
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
libslirp Debian:13
- Versions
- 4.8.0-1
- 4.8.0-1+deb13u1
- 4.9.1-1
- 4.9.2-1
- 4.9.3-1
- 4.9.4-1
- 4.9.5-1
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
libslirp Debian:14
- Versions
- 4.8.0-1
- 4.9.1-1
- 4.9.2-1
- 4.9.3-1
- 4.9.4-1
- 4.9.5-1
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published