CVE-2013-4270

Public Exploit

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.

Category

3.6
CVSS
Severity: Low
CVSS 2.0 •
EPSS 0.04%
Vendor Advisory ubuntu.com Vendor Advisory redhat.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://bugzilla.redhat.com/show_bug.cgi?id=1027752
http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.11.5
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=2433c8f094a008895e66f25bd1773cdb01c91d01
https://github.com/torvalds/linux/commit/2433c8f094a008895e66f25bd1773cdb01c91d01 patch exploit
http://www.ubuntu.com/usn/USN-2049-1 vendor advisory
http://rhn.redhat.com/errata/RHSA-2014-0100.html vendor advisory

Frequently Asked Questions

What is the severity of CVE-2013-4270?
CVE-2013-4270 has been scored as a low severity vulnerability.
How to fix CVE-2013-4270?
To fix CVE-2013-4270, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2013-4270 being actively exploited in the wild?
It is possible that CVE-2013-4270 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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