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.
The MITRE CVE dictionary describes this issue as:
Find out more about CVE-2013-4343 from the MITRE CVE dictionary dictionary and NIST NVD.
This issue does not affect the versions of the kernel package as shipped with Red Hat Enterprise Linux 5, 6 and Red Hat Enterprise MRG 2.
| Base Score | 6.8 |
|---|---|
| Base Metrics | AV:L/AC:L/Au:S/C:C/I:C/A:C |
| Access Vector | Local |
| Access Complexity | Low |
| Authentication | Single |
| Confidentiality Impact | Complete |
| Integrity Impact | Complete |
| Availability Impact | Complete |
Find out more about Red Hat support for the Common Vulnerability Scoring System (CVSS).
| Platform | Errata | Release Date |
|---|---|---|
| Red Hat MRG Grid for RHEL 6 Server v.2 (kernel-rt) | RHSA-2013:1490 | 2013-10-31 |
| Platform | Package | State |
|---|---|---|
| Red Hat Enterprise Linux 7 | kernel | Not affected |
| Red Hat Enterprise Linux 6 | kernel | Not affected |
| Red Hat Enterprise Linux 5 | kernel | Not affected |
Vulmon