CVE-2015-7312 : Detail

CVE-2015-7312

Memory Corruption
0.04%V3
Local
2015-11-16
10h00 +00:00
2017-11-03
17h57 +00:00
CVE.org
NVD
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CVE Descriptions

Multiple race conditions in the Advanced Union Filesystem (aufs) aufs3-mmap.patch and aufs4-mmap.patch patches for the Linux kernel 3.x and 4.x allow local users to cause a denial of service (use-after-free and BUG) or possibly gain privileges via a (1) madvise or (2) msync system call, related to mm/madvise.c and mm/msync.c.

CVE Informations

Related Weaknesses

CWE-ID Weakness Name Source
CWE-362 Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
The product contains a concurrent code sequence that requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence operating concurrently.
CWE-416 Use After Free
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 Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.

Metrics

Metrics Score Severity CVSS Vector Source
V2 4.4 AV:L/AC:M/Au:N/C:P/I:P/A:P [email protected]

EPSS

EPSS is a scoring model that predicts the likelihood of a vulnerability being exploited.

EPSS Score

The EPSS model produces a probability score between 0 and 1 (0 and 100%). The higher the score, the greater the probability that a vulnerability will be exploited.

EPSS Percentile

The percentile is used to rank CVE according to their EPSS score. For example, a CVE in the 95th percentile according to its EPSS score is more likely to be exploited than 95% of other CVE. Thus, the percentile is used to compare the EPSS score of a CVE with that of other CVE.
EPSS First.org

Products Mentioned

Configuraton 0

Linux>>Linux_kernel >> Version From (including) 3.0.0 To (including) 3.19.8

Linux>>Linux_kernel >> Version From (including) 4.0.0 To (including) 4.20.15

Configuraton 0

Canonical>>Ubuntu_linux >> Version 14.04

Debian>>Debian_linux >> Version 8.0

References

http://www.debian.org/security/2015/dsa-3364
Tags : vendor-advisory, x_refsource_DEBIAN
http://sourceforge.net/p/aufs/mailman/message/34449209/
Tags : mailing-list, x_refsource_MLIST
http://www.openwall.com/lists/oss-security/2015/09/22/10
Tags : mailing-list, x_refsource_MLIST
http://www.ubuntu.com/usn/USN-2777-1
Tags : vendor-advisory, x_refsource_UBUNTU