NULL Pointer Dereference Affecting irssi package, versions <0.8.21-r0
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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- published3 Mar 2017
- disclosed3 Mar 2017
Introduced: 3 Mar 2017
CVE-2017-5193 (opens in a new tab)How to fix?
Upgrade Alpine:3.2 irssi to version 0.8.21-r0 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream irssi package and not the irssi package as distributed by Alpine.
See How to fix? for Alpine:3.2 relevant fixed versions and status.
The nickcmp function in Irssi before 0.8.21 allows remote attackers to cause a denial of service (NULL pointer dereference and crash) via a message without a nick.
References
- https://irssi.org/security/irssi_sa_2017_01.txt
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-5193
- https://lists.debian.org/debian-lts-announce/2017/12/msg00022.html
- https://security-tracker.debian.org/tracker/CVE-2017-5193
- https://security.gentoo.org/glsa/201701-45
- http://www.openwall.com/lists/oss-security/2017/01/06/1
- http://www.securityfocus.com/bid/95310
- http://people.ubuntu.com/~ubuntu-security/cve/CVE-2017-5193