Vulnerability Details : CVE-2014-4654
The snd_ctl_elem_add function in sound/core/control.c in the ALSA control implementation in the Linux kernel before 3.15.2 does not check authorization for SNDRV_CTL_IOCTL_ELEM_REPLACE commands, which allows local users to remove kernel controls and cause a denial of service (use-after-free and system crash) by leveraging /dev/snd/controlCX access for an ioctl call.
Vulnerability category: Memory CorruptionDenial of service
Products affected by CVE-2014-4654
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
- cpe:2.3:o:suse:linux_enterprise_server:10:sp4:*:*:ltss:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:esm:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2014-4654
0.04%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 8 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2014-4654
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
---|---|---|---|---|---|---|
4.6
|
MEDIUM | AV:L/AC:L/Au:N/C:P/I:P/A:P |
3.9
|
6.4
|
NIST |
CWE ids for CVE-2014-4654
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The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.Assigned by: nvd@nist.gov (Primary)
References for CVE-2014-4654
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http://rhn.redhat.com/errata/RHSA-2014-1083.html
RHSA-2014:1083 - Security Advisory - Red Hat Customer PortalThird Party Advisory
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https://github.com/torvalds/linux/commit/82262a46627bebb0febcc26664746c25cef08563
ALSA: control: Fix replacing user controls · torvalds/linux@82262a4 · GitHubPatch;Third Party Advisory
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http://www.ubuntu.com/usn/USN-2334-1
USN-2334-1: Linux kernel vulnerabilities | Ubuntu security noticesThird Party Advisory
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http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.15.2
Release Notes;Vendor Advisory
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http://www.securityfocus.com/bid/68162
Linux Kernel Multiple Local Security Bypass VulnerabilitiesThird Party Advisory;VDB Entry
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http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=82262a46627bebb0febcc26664746c25cef08563
kernel/git/torvalds/linux.git - Linux kernel source treePatch;Vendor Advisory
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http://www.openwall.com/lists/oss-security/2014/06/26/6
oss-security - Re: CVE Request: Linux kernel ALSA core control API vulnerabilitiesMailing List;Third Party Advisory
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http://lists.opensuse.org/opensuse-security-announce/2015-04/msg00020.html
[security-announce] SUSE-SU-2015:0812-1: important: Security update forMailing List;Third Party Advisory
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https://bugzilla.redhat.com/show_bug.cgi?id=1113445
1113445 – (CVE-2014-4654, CVE-2014-4655) CVE-2014-4654 CVE-2014-4655 Kernel: ALSA: control: use-after-free in replacing user controlsIssue Tracking;Third Party Advisory
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http://www.ubuntu.com/usn/USN-2335-1
USN-2335-1: Linux kernel (OMAP4) vulnerabilities | Ubuntu security noticesThird Party Advisory
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http://secunia.com/advisories/60545
Sign inThird Party Advisory
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