Loop with Unreachable Exit Condition ('Infinite Loop') Affecting ncurses package, versions <6.0+20170827-1
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-DEBIANUNSTABLE-NCURSES-367714
- published29 Aug 2017
- disclosed29 Aug 2017
Introduced: 29 Aug 2017
CVE-2017-13728 (opens in a new tab)How to fix?
Upgrade Debian:unstable ncurses to version 6.0+20170827-1 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream ncurses package and not the ncurses package as distributed by Debian.
See How to fix? for Debian:unstable relevant fixed versions and status.
There is an infinite loop in the next_char function in comp_scan.c in ncurses 6.0, related to libtic. A crafted input will lead to a remote denial of service attack.
References
- https://security-tracker.debian.org/tracker/CVE-2017-13728
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-13728
- https://security.gentoo.org/glsa/201804-13
- https://lists.apache.org/thread.html/r58af02e294bd07f487e2c64ffc0a29b837db5600e33b6e698b9d696b@%3Cissues.bookkeeper.apache.org%3E
- https://lists.apache.org/thread.html/rf4c02775860db415b4955778a131c2795223f61cb8c6a450893651e4@%3Cissues.bookkeeper.apache.org%3E
- https://bugzilla.redhat.com/show_bug.cgi?id=1484274
- http://people.ubuntu.com/~ubuntu-security/cve/CVE-2017-13728
- https://lists.apache.org/thread.html/r58af02e294bd07f487e2c64ffc0a29b837db5600e33b6e698b9d696b%40%3Cissues.bookkeeper.apache.org%3E
- https://lists.apache.org/thread.html/rf4c02775860db415b4955778a131c2795223f61cb8c6a450893651e4%40%3Cissues.bookkeeper.apache.org%3E