CVE-2017-7186
high
CVSS v3
7.5
CVSS v4 NEW
—
VIR risk
7.5
Description
libpcre1 in PCRE 8.40 and libpcre2 in PCRE2 10.23 allow remote attackers to cause a denial of service (segmentation violation for read access, and application crash) by triggering an invalid Unicode property lookup.
Predictions
Exploit likelihood
83%
Patch ETA
—
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.
✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
OS impact
| OS | Version | Status | Fixed in |
|---|---|---|---|
| arch | fixed | 10.30-1 | |
| sles | affected | | |
| debian | bookworm | fixed | 10.22-3 |
| debian | bullseye | fixed | 10.22-3 |
| debian | forky | fixed | 10.22-3 |
| debian | sid | fixed | 10.22-3 |
| debian | trixie | fixed | 10.22-3 |
References
- https://security.archlinux.org/ASA-201710-18
- https://security.archlinux.org/ASA-201707-20
- http://www.securityfocus.com/bid/97030
- https://access.redhat.com/errata/RHSA-2018:2486
- https://blogs.gentoo.org/ago/2017/03/14/libpcre-invalid-memory-read-in-match-pcre_exec-c/
- https://bugs.exim.org/show_bug.cgi?id=2052
- https://security.gentoo.org/glsa/201710-09
- https://security.gentoo.org/glsa/201710-25
- https://vcs.pcre.org/pcre/code/trunk/pcre_internal.h?r1=1649&r2=1688&sortby=date
- https://vcs.pcre.org/pcre/code/trunk/pcre_ucd.c?r1=1490&r2=1688&sortby=date
- https://vcs.pcre.org/pcre2/code/trunk/src/pcre2_internal.h?r1=600&r2=670&sortby=date
- https://vcs.pcre.org/pcre2/code/trunk/src/pcre2_ucd.c?r1=316&r2=670&sortby=date
- https://www.suse.com/security/cve/CVE-2017-7186.html
- https://security-tracker.debian.org/tracker/CVE-2017-7186
CWEs
CWE-119
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.