Vulnerability Description
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.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Gnu | Glibc | <= 2.29 |
| Netapp | Cloud Backup | All versions |
| Netapp | Ontap Select Deploy Administration Utility | - |
| Netapp | Steelstore Cloud Integrated Storage | - |
Related Weaknesses (CWE)
References
- http://www.securityfocus.com/bid/107160Third Party AdvisoryVDB Entry
- https://debbugs.gnu.org/cgi/bugreport.cgi?bug=34141ExploitMailing ListVendor Advisory
- https://lists.gnu.org/archive/html/bug-gnulib/2019-01/msg00108.htmlExploitMailing ListVendor Advisory
- https://security.netapp.com/advisory/ntap-20190315-0002/PatchThird Party Advisory
- https://support.f5.com/csp/article/K26346590?utm_source=f5support&%3Butm_medi
- http://www.securityfocus.com/bid/107160Third Party AdvisoryVDB Entry
- https://debbugs.gnu.org/cgi/bugreport.cgi?bug=34141ExploitMailing ListVendor Advisory
- https://lists.gnu.org/archive/html/bug-gnulib/2019-01/msg00108.htmlExploitMailing ListVendor Advisory
- https://security.netapp.com/advisory/ntap-20190315-0002/PatchThird Party Advisory
- https://support.f5.com/csp/article/K26346590?utm_source=f5support&%3Butm_medi
FAQ
What is CVE-2018-20796?
CVE-2018-20796 is a vulnerability with a CVSS score of 7.5 (HIGH). 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.
How severe is CVE-2018-20796?
CVE-2018-20796 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2018-20796?
Check the references section above for vendor advisories and patch information. Affected products include: Gnu Glibc, Netapp Cloud Backup, Netapp Ontap Select Deploy Administration Utility, Netapp Steelstore Cloud Integrated Storage.