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.

References

• https://nvd.nist.gov/vuln/detail/CVE-2013-4343
• https://bugzilla.redhat.com/show_bug.cgi?id=1007733
• http://lists.opensuse.org/opensuse-security-announce/2019-05/msg00071.html
• http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00039.html
• http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00048.html
• http://marc.info/?l=linux-kernel&m=137889490510745&w=2
• http://rhn.redhat.com/errata/RHSA-2013-1490.html
• http://www.openwall.com/lists/oss-security/2013/09/12/3
• http://www.spinics.net/lists/netdev/msg250066.html
• http://www.ubuntu.com/usn/USN-2020-1
• http://www.ubuntu.com/usn/USN-2023-1
• http://www.ubuntu.com/usn/USN-2049-1
• https://access.redhat.com/errata/RHSA-2013:1490
• https://access.redhat.com/security/cve/CVE-2013-4343