Use After Free Affecting linux-4.9 package, versions <4.9.110-3+deb9u5~deb8u1
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-DEBIAN8-LINUX49-263028
- published25 Sept 2018
- disclosed4 Sept 2018
Introduced: 4 Sep 2018
CVE-2018-6555 (opens in a new tab)How to fix?
Upgrade Debian:8 linux-4.9 to version 4.9.110-3+deb9u5~deb8u1 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream linux-4.9 package and not the linux-4.9 package as distributed by Debian.
See How to fix? for Debian:8 relevant fixed versions and status.
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.
References
- https://security-tracker.debian.org/tracker/CVE-2018-6555
- https://www.debian.org/security/2018/dsa-4308
- https://lists.debian.org/debian-lts-announce/2018/10/msg00003.html
- https://www.spinics.net/lists/stable/msg255031.html
- https://www.spinics.net/lists/stable/msg255035.html
- http://www.securityfocus.com/bid/105304
- https://usn.ubuntu.com/3775-1/
- https://usn.ubuntu.com/3775-2/
- https://usn.ubuntu.com/3776-1/
- https://usn.ubuntu.com/3776-2/
- https://usn.ubuntu.com/3777-1/
- https://usn.ubuntu.com/3777-2/
- https://usn.ubuntu.com/3777-3/