Vulnerability Details : CVE-2018-20961
In the Linux kernel before 4.16.4, a double free vulnerability in the f_midi_set_alt function of drivers/usb/gadget/function/f_midi.c in the f_midi driver may allow attackers to cause a denial of service or possibly have unspecified other impact.
Vulnerability category: Memory CorruptionDenial of service
Products affected by CVE-2018-20961
- 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-2018-20961
1.58%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 87 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2018-20961
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
10.0
|
HIGH | AV:N/AC:L/Au:N/C:C/I:C/A:C |
10.0
|
10.0
|
NIST | |
|
9.8
|
CRITICAL | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
3.9
|
5.9
|
NIST |
CWE ids for CVE-2018-20961
-
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-2018-20961
-
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=7fafcfdf6377b18b2a726ea554d6e593ba44349f
kernel/git/torvalds/linux.git - Linux kernel source treeExploit;Mailing List;Vendor Advisory
-
https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.16.4
Release Notes;Vendor Advisory
-
https://usn.ubuntu.com/4145-1/
USN-4145-1: Linux kernel vulnerabilities | Ubuntu security noticesThird Party Advisory
-
https://support.f5.com/csp/article/K58502654
Third Party Advisory
-
http://packetstormsecurity.com/files/154951/Kernel-Live-Patch-Security-Notice-LSN-0058-1.html
Kernel Live Patch Security Notice LSN-0058-1 ≈ Packet StormThird Party Advisory;VDB Entry
-
http://packetstormsecurity.com/files/154228/Slackware-Security-Advisory-Slackware-14.2-kernel-Updates.html
Slackware Security Advisory - Slackware 14.2 kernel Updates ≈ Packet StormThird Party Advisory;VDB Entry
-
https://support.f5.com/csp/article/K58502654?utm_source=f5support&utm_medium=RSS
Third Party Advisory
-
https://security.netapp.com/advisory/ntap-20190905-0002/
August 2019 Linux Kernel Vulnerabilities in NetApp Products | NetApp Product SecurityThird Party Advisory
-
https://seclists.org/bugtraq/2019/Aug/48
Bugtraq: [slackware-security] Slackware 14.2 kernel (SSA:2019-238-01)Mailing List;Third Party Advisory
-
https://github.com/torvalds/linux/commit/7fafcfdf6377b18b2a726ea554d6e593ba44349f
USB: gadget: f_midi: fixing a possible double-free in f_midi · torvalds/linux@7fafcfd · GitHubPatch;Third Party Advisory
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