Vulnerability Details : CVE-2015-8961
The __ext4_journal_stop function in fs/ext4/ext4_jbd2.c in the Linux kernel before 4.3.3 allows local users to gain privileges or cause a denial of service (use-after-free) by leveraging improper access to a certain error field.
Published
2016-11-16 05:59:00
Updated
2025-04-12 10:46:41
Vulnerability category: Memory CorruptionDenial of service
Products affected by CVE-2015-8961
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Threat overview for CVE-2015-8961
Top countries where our scanners detected CVE-2015-8961
Top open port discovered on systems with this issue
49152
IPs affected by CVE-2015-8961 13,842
Threat actors abusing to this issue?
Yes
Find out if you* are
affected by CVE-2015-8961!
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attack surface intelligence
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Exploit prediction scoring system (EPSS) score for CVE-2015-8961
0.25%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 45 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2015-8961
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
---|---|---|---|---|---|---|
9.3
|
HIGH | AV:N/AC:M/Au:N/C:C/I:C/A:C |
8.6
|
10.0
|
NIST | |
7.8
|
HIGH | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
1.8
|
5.9
|
NIST |
CWE ids for CVE-2015-8961
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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 Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.Assigned by: nvd@nist.gov (Primary)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-2015-8961
-
http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.3.3
Release Notes
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https://github.com/torvalds/linux/commit/6934da9238da947628be83635e365df41064b09b
ext4: fix potential use after free in __ext4_journal_stop · torvalds/linux@6934da9 · GitHubPatch;Vendor Advisory
-
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=6934da9238da947628be83635e365df41064b09b
kernel/git/torvalds/linux.git - Linux kernel source treePatch;Vendor Advisory
-
http://www.securityfocus.com/bid/94135
Linux kernel Local Use After Free Multiple Denial of Service VulnerabilitiesThird Party Advisory;VDB Entry
-
https://source.android.com/security/bulletin/2016-11-01.html
Android Security Bulletin—November 2016 | Android Open Source ProjectThird Party Advisory
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