What’s Vulnerable › Vulnerabilities

CVE-2014-4652

• Severity: low (CVSS 1.9 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: 2014-07-03 · updated 2026-06-17
• Weakness: CWE-362

Description

Race condition in the tlv handler functionality in the snd_ctl_elem_user_tlv function in sound/core/control.c in the ALSA control implementation in the Linux kernel before 3.15.2 allows local users to obtain sensitive information from kernel memory by leveraging /dev/snd/controlCX access.

Affected products

• Canonical Ubuntu Linux: 12.04
• Linux kernel: before 3.15.2 — fixed in 3.15.2
• RedHat Enterprise Linux Desktop: 6.0
• RedHat Enterprise Linux Server: 6.0
• RedHat Enterprise Linux Workstation: 6.0
• SUSE Linux Enterprise Server: 10-sp4

How to fix

Upgrade to a fixed version: Linux kernel 3.15.2. Check the vendor advisory for mitigations.

References

• http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=07f4d9d74a04aa7c72c5dae0ef97565f28f17b92
• http://lists.opensuse.org/opensuse-security-announce/2015-04/msg00020.html
• http://rhn.redhat.com/errata/RHSA-2014-1083.html
• http://rhn.redhat.com/errata/RHSA-2015-1272.html
• http://secunia.com/advisories/59434
• http://secunia.com/advisories/59777
• http://secunia.com/advisories/60545
• http://secunia.com/advisories/60564
• http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.15.2
• http://www.openwall.com/lists/oss-security/2014/06/26/6
• http://www.ubuntu.com/usn/USN-2334-1
• http://www.ubuntu.com/usn/USN-2335-1

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