CVE-2013-7270

Description

The packet_recvmsg function in net/packet/af_packet.c in the Linux kernel before 3.12.4 updates a certain length value before ensuring that an associated data structure has been initialized, which allows local users to obtain sensitive information from kernel memory via a (1) recvfrom, (2) recvmmsg, or (3) recvmsg system call.

Category

4.9
CVSS
Severity: Medium
CVSS 2.0 •
EPSS 0.05%
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Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
http://www.ubuntu.com/usn/USN-2135-1 vendor advisory
http://www.ubuntu.com/usn/USN-2138-1 vendor advisory
http://www.ubuntu.com/usn/USN-2113-1 vendor advisory
http://www.ubuntu.com/usn/USN-2141-1 vendor advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1039845
http://www.ubuntu.com/usn/USN-2110-1 vendor advisory
http://www.ubuntu.com/usn/USN-2129-1 vendor advisory
http://www.ubuntu.com/usn/USN-2136-1 vendor advisory
http://www.ubuntu.com/usn/USN-2128-1 vendor advisory
https://exchange.xforce.ibmcloud.com/vulnerabilities/90131 vdb entry
http://www.ubuntu.com/usn/USN-2139-1 vendor advisory
http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.12.4
http://www.ubuntu.com/usn/USN-2117-1 vendor advisory
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=f3d3342602f8bcbf37d7c46641cb9bca7618eb1c
http://secunia.com/advisories/56036 third party advisory
http://www.ubuntu.com/usn/USN-2109-1 vendor advisory
http://www.openwall.com/lists/oss-security/2013/12/31/7 mailing list
https://github.com/torvalds/linux/commit/f3d3342602f8bcbf37d7c46641cb9bca7618eb1c
http://www.securityfocus.com/bid/64744 vdb entry
http://secunia.com/advisories/55882 third party advisory

Frequently Asked Questions

What is the severity of CVE-2013-7270?
CVE-2013-7270 has been scored as a medium severity vulnerability.
How to fix CVE-2013-7270?
To fix CVE-2013-7270, 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-2013-7270 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2013-7270 is being actively exploited. 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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