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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…
High7.5EPSS 5.8%
- Published
- Updated
- Reserved
- Assigned by
- mitre
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.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 3.0 | High7.5 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
- EPSS (exploitation in 30 days)
- 5.8% · top 6.8% of all CVEs (4 Nov 2026)
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The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.5.
Weakness
Affected products
n/a
- affected n/a
References (5)
- https://security.netapp.com/advisory/ntap-20190315-0002/ (opens in a new tab)x_refsource_CONFIRMx_transferred
- https://lists.gnu.org/archive/html/bug-gnulib/2019-01/msg00108.html (opens in a new tab)x_refsource_MISCx_transferred
- 107160 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- https://debbugs.gnu.org/cgi/bugreport.cgi?bug=34141 (opens in a new tab)x_refsource_MISCx_transferred
- https://support.f5.com/csp/article/K26346590?utm_source=f5support&%3Butm_medium=RSS (opens in a new tab)x_refsource_CONFIRMx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2018-20796)Record last updated .