VulnerabilityModified
CVE-2017-8786
pcre2test.c in PCRE2 10.23 allows remote attackers to cause a denial of service (heap-based buffer overflow) or possibly have unspecified other impact via a crafted regular expression.
CRITICAL 9.8EPSS 4.07%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (4.07%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
pcre2test.c in PCRE2 10.23 allows remote attackers to cause a denial of service (heap-based buffer overflow) or possibly have unspecified other impact via a crafted regular expression.
- CVSS 3.0
- 9.8 CRITICALCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 4.07% probability · 90th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-119
- Affected
- pcre/pcre2
- Source
- cve@mitre.org
References
- https://blogs.gentoo.org/ago/2017/04/29/libpcre-heap-based-buffer-overflow-write-in-pcre2test-c/Exploit, Patch, Third Party Advisory, VDB Entry
- https://bugs.exim.org/show_bug.cgi?id=2079Exploit, Issue Tracking, Third Party Advisory, VDB Entry
- https://security.gentoo.org/glsa/201710-09
- https://vcs.pcre.org/pcre2?view=revision&revision=696Patch, Vendor Advisory
- https://vcs.pcre.org/pcre2?view=revision&revision=697Patch, Vendor Advisory
- https://blogs.gentoo.org/ago/2017/04/29/libpcre-heap-based-buffer-overflow-write-in-pcre2test-c/Exploit, Patch, Third Party Advisory, VDB Entry
- https://bugs.exim.org/show_bug.cgi?id=2079Exploit, Issue Tracking, Third Party Advisory, VDB Entry
- https://security.gentoo.org/glsa/201710-09
- https://vcs.pcre.org/pcre2?view=revision&revision=696Patch, Vendor Advisory
- https://vcs.pcre.org/pcre2?view=revision&revision=697Patch, Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.