CVE-2013-3236

Severity: medium (CVSS 4.9 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.3% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2013-04-22 · updated 2026-06-16
Weakness: CWE-200

Description

The vmci_transport_dgram_dequeue function in net/vmw_vsock/vmci_transport.c in the Linux kernel before 3.9-rc7 does not properly initialize a certain length variable, which allows local users to obtain sensitive information from kernel stack memory via a crafted recvmsg or recvfrom system call.

Affected products

Linux kernel: through 3.9; 3.9-rc1, 3.9-rc2, 3.9-rc3, 3.9-rc4, 3.9-rc5

References

http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=680d04e0ba7e926233e3b9cee59125ce181f66ba
http://www.openwall.com/lists/oss-security/2013/04/14/3
http://www.openwall.com/lists/oss-security/2013/04/22/11
http://www.openwall.com/lists/oss-security/2013/04/22/13
http://www.openwall.com/lists/oss-security/2013/04/22/14
http://www.openwall.com/lists/oss-security/2013/04/22/3
http://www.openwall.com/lists/oss-security/2013/04/23/2
http://www.securityfocus.com/bid/59391
http://xforce.iss.net/xforce/xfdb/83698
https://github.com/torvalds/linux/commit/680d04e0ba7e926233e3b9cee59125ce181f66ba
https://lkml.org/lkml/2013/4/14/107
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=680d04e0ba7e926233e3b9cee59125ce181f66ba

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