Vulnerability Details : CVE-2015-8962
Double free vulnerability in the sg_common_write function in drivers/scsi/sg.c in the Linux kernel before 4.4 allows local users to gain privileges or cause a denial of service (memory corruption and system crash) by detaching a device during an SG_IO ioctl call.
Published
2016-11-16 05:59:02
Updated
2023-01-19 16:08:00
Vulnerability category: Memory CorruptionDenial of service
Products affected by CVE-2015-8962
- 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:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2015-8962
0.04%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 6 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2015-8962
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 | |
7.3
|
HIGH | CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H |
1.3
|
5.9
|
NIST |
CWE ids for CVE-2015-8962
-
The product calls free() twice on the same memory address, potentially leading to modification of unexpected memory locations.Assigned by: nvd@nist.gov (Primary)
References for CVE-2015-8962
-
https://github.com/torvalds/linux/commit/f3951a3709ff50990bf3e188c27d346792103432
sg: Fix double-free when drives detach during SG_IO · torvalds/linux@f3951a3 · GitHubPatch;Vendor Advisory
-
https://source.android.com/security/bulletin/2016-11-01.html
Android Security Bulletin—November 2016 | Android Open Source ProjectThird Party Advisory
-
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=f3951a3709ff50990bf3e188c27d346792103432
kernel/git/torvalds/linux.git - Linux kernel source treePatch;Vendor Advisory
-
http://www.securityfocus.com/bid/94187
Linux Kernel CVE-2015-8962 Memory Corruption VulnerabilityThird Party Advisory;VDB Entry
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