CVE-2017-8786
critical
CVSS v3
9.8
CVSS v4 NEW
—
VIR risk
9.8
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.
Predictions
Exploit likelihood
97%
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 |
|---|---|---|---|
| sles | affected | | |
| debian | bookworm | fixed | 10.31-1 |
| debian | bullseye | fixed | 10.31-1 |
| debian | forky | fixed | 10.31-1 |
| debian | sid | fixed | 10.31-1 |
| debian | trixie | fixed | 10.31-1 |
Application impact
| Vendor | Product | Versions | Fixed |
|---|---|---|---|
| pcre | pcre2 | 10.23 | |
References
- https://blogs.gentoo.org/ago/2017/04/29/libpcre-heap-based-buffer-overflow-write-in-pcre2test-c/
- https://bugs.exim.org/show_bug.cgi?id=2079
- https://security.gentoo.org/glsa/201710-09
- https://vcs.pcre.org/pcre2?view=revision&revision=696
- https://vcs.pcre.org/pcre2?view=revision&revision=697
- https://www.suse.com/security/cve/CVE-2017-8786.html
- https://security-tracker.debian.org/tracker/CVE-2017-8786
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.