Uncontrolled Recursion Affecting glibc 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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- published26 Feb 2019
- disclosed26 Feb 2019
Introduced: 26 Feb 2019
CVE-2018-20796 (opens in a new tab)How to fix?
There is no fixed version for Debian:unstable glibc.
NVD Description
Note: Versions mentioned in the description apply only to the upstream glibc package and not the glibc package as distributed by Debian.
See How to fix? for Debian:unstable relevant fixed versions and status.
In the GNU C Library (aka glibc or libc6) through 2.29, check_dst_limits_calc_pos_1 in posix/regexec.c has Uncontrolled Recursion, as demonstrated by '(\227|)(\1\1|t1|\\2537)+' in grep.
References
- https://security-tracker.debian.org/tracker/CVE-2018-20796
- https://support.f5.com/csp/article/K26346590?utm_source=f5support&utm_medium=RSS
- https://debbugs.gnu.org/cgi/bugreport.cgi?bug=34141
- https://lists.gnu.org/archive/html/bug-gnulib/2019-01/msg00108.html
- https://security.netapp.com/advisory/ntap-20190315-0002/
- http://www.securityfocus.com/bid/107160
- http://people.ubuntu.com/~ubuntu-security/cve/CVE-2018-20796
- https://support.f5.com/csp/article/K26346590?utm_source=f5support&%3Butm_medium=RSS