Uncontrolled Recursion Affecting flex package, versions *
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-FLEX-285171
- published15 Jan 2019
- disclosed15 Jan 2019
Introduced: 15 Jan 2019
CVE-2019-6293 (opens in a new tab)How to fix?
There is no fixed version for Debian:unstable flex.
NVD Description
Note: Versions mentioned in the description apply only to the upstream flex package and not the flex package as distributed by Debian.
See How to fix? for Debian:unstable relevant fixed versions and status.
An issue was discovered in the function mark_beginning_as_normal in nfa.c in flex 2.6.4. There is a stack exhaustion problem caused by the mark_beginning_as_normal function making recursive calls to itself in certain scenarios involving lots of '*' characters. Remote attackers could leverage this vulnerability to cause a denial-of-service.