VulnerabilityModified
CVE-2018-20796
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.
HIGH 7.5EPSS 5.76%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (5.76%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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 3.0
- 7.5 HIGHCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 5.76% probability · 93th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-674
- Affected
- gnu/glibc · netapp/cloud backup · netapp/ontap select deploy administration utility · netapp/steelstore cloud integrated storage
- Source
- cve@mitre.org
References
- http://www.securityfocus.com/bid/107160Third Party Advisory, VDB Entry
- https://debbugs.gnu.org/cgi/bugreport.cgi?bug=34141Exploit, Mailing List, Vendor Advisory
- https://lists.gnu.org/archive/html/bug-gnulib/2019-01/msg00108.htmlExploit, Mailing List, Vendor Advisory
- https://security.netapp.com/advisory/ntap-20190315-0002/Patch, Third Party Advisory
- https://support.f5.com/csp/article/K26346590?utm_source=f5support&%3Butm_medium=RSS
- http://www.securityfocus.com/bid/107160Third Party Advisory, VDB Entry
- https://debbugs.gnu.org/cgi/bugreport.cgi?bug=34141Exploit, Mailing List, Vendor Advisory
- https://lists.gnu.org/archive/html/bug-gnulib/2019-01/msg00108.htmlExploit, Mailing List, Vendor Advisory
- https://security.netapp.com/advisory/ntap-20190315-0002/Patch, Third Party Advisory
- https://support.f5.com/csp/article/K26346590?utm_source=f5support&%3Butm_medium=RSS
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.