VulnerabilityModified
CVE-2013-4270
The net_ctl_permissions function in net/sysctl_net.c in the Linux kernel before 3.11.5 does not properly determine uid and gid values, which allows local users to bypass intended /proc/sys/net restrictions via a crafted application.
LOW 3.6EPSS 0.55%
Does this matter?
Lower severity and a low EPSS score (0.55%). Track it; it rarely justifies an emergency change on its own.
Description
The net_ctl_permissions function in net/sysctl_net.c in the Linux kernel before 3.11.5 does not properly determine uid and gid values, which allows local users to bypass intended /proc/sys/net restrictions via a crafted application.
- CVSS 2.0
- 3.6 LOWAV:L/AC:L/Au:N/C:P/I:P/A:N
- EPSS
- 0.55% probability · 44th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-20
- Affected
- linux/linux kernel
- Source
- secalert@redhat.com
References
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=2433c8f094a008895e66f25bd1773cdb01c91d01
- http://rhn.redhat.com/errata/RHSA-2014-0100.html
- http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.11.5
- http://www.ubuntu.com/usn/USN-2049-1
- https://bugzilla.redhat.com/show_bug.cgi?id=1027752
- https://github.com/torvalds/linux/commit/2433c8f094a008895e66f25bd1773cdb01c91d01Exploit, Patch
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=2433c8f094a008895e66f25bd1773cdb01c91d01
- http://rhn.redhat.com/errata/RHSA-2014-0100.html
- http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.11.5
- http://www.ubuntu.com/usn/USN-2049-1
- https://bugzilla.redhat.com/show_bug.cgi?id=1027752
- https://github.com/torvalds/linux/commit/2433c8f094a008895e66f25bd1773cdb01c91d01Exploit, Patch
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.