CVE-2015-8853
high
CVSS v3
7.5
CVSS v4 NEW
—
VIR risk
7.5
Description
The (1) S_reghop3, (2) S_reghop4, and (3) S_reghopmaybe3 functions in regexec.c in Perl before 5.24.0 allow context-dependent attackers to cause a denial of service (infinite loop) via crafted utf-8 data, as demonstrated by "a\x80."
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 |
|---|---|---|---|
| sles | affected | | |
| fedora | 22 | affected | |
| debian | bookworm | fixed | 5.22.1-1 |
| debian | bullseye | fixed | 5.22.1-1 |
| debian | forky | fixed | 5.22.1-1 |
| debian | sid | fixed | 5.22.1-1 |
| debian | trixie | fixed | 5.22.1-1 |
Application impact
| Vendor | Product | Versions | Fixed |
|---|---|---|---|
| perl | perl | {"endIncluding":"5.23.9"} | |
References
- https://www.suse.com/security/cve/CVE-2015-8853.html
- http://lists.fedoraproject.org/pipermail/package-announce/2016-May/183592.html
- http://perl5.git.perl.org/perl.git/commitdiff/22b433eff9a1ffa2454e18405a56650f07b385b5
- http://www.openwall.com/lists/oss-security/2016/04/20/5
- http://www.openwall.com/lists/oss-security/2016/04/20/7
- http://www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.html
- http://www.oracle.com/technetwork/topics/security/bulletinjul2016-3090568.html
- http://www.securityfocus.com/bid/86707
- https://bugzilla.redhat.com/show_bug.cgi?id=1329106
- https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05240731
- https://rt.perl.org/Public/Bug/Display.html?id=123562
- https://security.gentoo.org/glsa/201701-75
- https://usn.ubuntu.com/3625-1/
- https://usn.ubuntu.com/3625-2/
- https://security-tracker.debian.org/tracker/CVE-2015-8853
CWEs
CWE-20
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.