CVE Database


Impact: Low
Public: 2013-11-18
Bugzilla: 1035875: CVE-2013-7263 CVE-2013-7265 Kernel: net: leakage of uninitialized memory to user-space via recv syscalls


The MITRE CVE dictionary describes this issue as:

The Linux kernel before 3.12.4 updates certain length values before ensuring that associated data structures have been initialized, which allows local users to obtain sensitive information from kernel stack memory via a (1) recvfrom, (2) recvmmsg, or (3) recvmsg system call, related to net/ipv4/ping.c, net/ipv4/raw.c, net/ipv4/udp.c, net/ipv6/raw.c, and net/ipv6/udp.c.

Find out more about CVE-2013-7263 from the MITRE CVE dictionary and NIST NVD.

CVSS v2 metrics

Base Score: 2.1
Base Metrics: AV:L/AC:L/Au:N/C:P/I:N/A:N
Access Vector: Local
Access Complexity: Low
Authentication: None
Confidentiality Impact: Partial
Integrity Impact: None
Availability Impact: None

Find out more about Red Hat support for the Common Vulnerability Scoring System (CVSS).

Red Hat security errata

Platform Errata Release Date
MRG Grid for RHEL 6 Server v.2 (kernel-rt) RHSA-2014:0439 April 28, 2014
Red Hat Enterprise Linux version 5 (kernel) RHSA-2014:0285 March 12, 2014
Red Hat Enterprise Linux version 6 (kernel) RHSA-2014:0159 February 11, 2014

External References

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For clarification or corrections please contact the Red Hat Security Response Team.