Vulnerability Details : CVE-2018-6555
The irda_setsockopt function in net/irda/af_irda.c and later in drivers/staging/irda/net/af_irda.c in the Linux kernel before 4.17 allows local users to cause a denial of service (ias_object use-after-free and system crash) or possibly have unspecified other impact via an AF_IRDA socket.
Vulnerability category: Memory CorruptionDenial of service
Products affected by CVE-2018-6555
- cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
- cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:esm:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2018-6555
0.03%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 5 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2018-6555
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
---|---|---|---|---|---|---|
7.2
|
HIGH | AV:L/AC:L/Au:N/C:C/I:C/A:C |
3.9
|
10.0
|
NIST | |
7.8
|
HIGH | CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
1.8
|
5.9
|
NIST |
CWE ids for CVE-2018-6555
-
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 Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.Assigned by: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)
- security@ubuntu.com (Secondary)
References for CVE-2018-6555
-
https://www.spinics.net/lists/stable/msg255031.html
[PATCH 2/2] irda: Only insert new objects into the global database via setsockopt — Linux Stable Kernel UpdatesPatch;Third Party Advisory
-
https://www.debian.org/security/2018/dsa-4308
Debian -- Security Information -- DSA-4308-1 linuxThird Party Advisory
-
https://usn.ubuntu.com/3775-1/
USN-3775-1: Linux kernel vulnerabilities | Ubuntu security noticesThird Party Advisory
-
https://usn.ubuntu.com/3777-3/
USN-3777-3: Linux kernel (Azure) vulnerabilities | Ubuntu security noticesThird Party Advisory
-
https://usn.ubuntu.com/3777-2/
USN-3777-2: Linux kernel (HWE) vulnerabilities | Ubuntu security noticesThird Party Advisory
-
https://lists.debian.org/debian-lts-announce/2018/10/msg00003.html
[SECURITY] [DLA 1531-1] linux-4.9 security updateThird Party Advisory
-
https://www.spinics.net/lists/stable/msg255035.html
[PATCH 2/2] irda: Only insert new objects into the global database via setsockopt — Linux Stable Kernel UpdatesPatch;Third Party Advisory
-
https://usn.ubuntu.com/3776-1/
USN-3776-1: Linux kernel vulnerabilities | Ubuntu security noticesThird Party Advisory
-
http://www.securityfocus.com/bid/105304
Malformed RequestThird Party Advisory;VDB Entry
-
https://usn.ubuntu.com/3777-1/
USN-3777-1: Linux kernel vulnerabilities | Ubuntu security noticesThird Party Advisory
-
https://usn.ubuntu.com/3776-2/
USN-3776-2: Linux kernel (Xenial HWE) vulnerabilities | Ubuntu security noticesThird Party Advisory
-
https://usn.ubuntu.com/3775-2/
USN-3775-2: Linux kernel (Trusty HWE) vulnerabilities | Ubuntu security noticesThird Party Advisory
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