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CVE-2015-7312

14
FAUCET Score

CVE-2015-7312 describes multiple race conditions within the Advanced Union Filesystem (aufs) patches for Linux kernel versions 3.x and 4.x. These vulnerabilities, specifically CWE-362 and CWE-416, affect various Canonical and Debian Linux distributions. A local attacker can exploit these race conditions via madvise or msync system calls to trigger a use-after-free error, leading to a denial of service (BUG) or potentially privilege escalation. The CVSS score of 4.4 indicates a medium severity, with a local attack vector and medium attack complexity. There is no evidence of active exploitation, publicly available exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
>= 3.0.0, <= 3.19.8CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 4.0.0, <= 4.20.15CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
14.04CPE matchmatch criteria
cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:esm:*:*:*
8.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

4.4MEDIUM

AV:L/AC:M/Au:N/C:P/I:P/A:P

Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
Access Vector
LOCAL
Access Complexity
MEDIUM
Authentication
NONE
Exploitability Score
3.4
Impact Score
6.4
CvssVersion
2.0

Exploit Intelligence

EPSS Score
0.39%
Probability of exploitation in next 30 days
EPSS Percentile
31.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0039 is in the 52nd percentile among its peer group of 1,595 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Advisories (1)

redhatCVE-2015-7312Low

kernel: multiple race conditions in aufs

Sep 22, 2015

References

sourceforge.net / p/aufs/mailman/message/34449209
ExploitThird Party Advisory
debian.org / security/2015/dsa-3364
Third Party Advisory
openwall.com / lists/oss-security/2015/09/22/10
Mailing ListThird Party Advisory
ubuntu.com / usn/USN-2777-1
Third Party Advisory