CVE-2013-4343

medium
Published 2013-09-25 · Modified 2026-04-29
CVSS v3
CVSS v2
6.9
VIR risk
6.9

Description

Use-after-free vulnerability in drivers/net/tun.c in the Linux kernel through 3.11.1 allows local users to gain privileges by leveraging the CAP_NET_ADMIN capability and providing an invalid tuntap interface name in a TUNSETIFF ioctl call.

Predictions

Exploit likelihood
20%
Patch ETA

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

vendor Authored 2026-05-27

Vendor advisory: debian — https://security-tracker.debian.org/tracker/CVE-2013-4343

OS impact

OSVersionStatusFixed in
linux linux-kernelaffected3.10.16
debian debianbookwormfixed3.11.5-1
debian debianbullseyefixed3.11.5-1
debian debianforkyfixed3.11.5-1
debian debiansidfixed3.11.5-1
debian debiantrixiefixed3.11.5-1
ubuntu ubuntu13.04affected
ubuntu ubuntu13.10affected

References

CWEs

CWE-399

Verify integrity in audit chain (admin only). AS-IS.