CVE-2015-3217
high
CVSS v3
7.5
CVSS v4 NEW
—
VIR risk
7.5
Description
PCRE 7.8 and 8.32 through 8.37, and PCRE2 10.10 mishandle group empty matches, which might allow remote attackers to cause a denial of service (stack-based buffer overflow) via a crafted regular expression, as demonstrated by /^(?:(?(1)\\.|([^\\\\W_])?)+)+$/.
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
Debian Fixed 2 releases
| Version | Status | Fixed in |
|---|---|---|
| bullseye | Fixed | 2:8.38-1 |
| bookworm | Fixed | 2:8.38-1 |
References
- http://rhn.redhat.com/errata/RHSA-2016-1025.html
- http://rhn.redhat.com/errata/RHSA-2016-2750.html
- http://vcs.pcre.org/pcre?view=revision&revision=1566
- http://www-01.ibm.com/support/docview.wss?uid=isg3T1023886
- http://www.openwall.com/lists/oss-security/2015/06/03/7
- http://www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.html
- http://www.securityfocus.com/bid/75018
- https://access.redhat.com/errata/RHSA-2016:1132
- https://bugs.exim.org/show_bug.cgi?id=1638
- https://bugzilla.redhat.com/show_bug.cgi?id=1228283
- https://security-tracker.debian.org/tracker/CVE-2015-3217
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.