CVE-2016-0747

high-risk
Published 2016-02-15

The resolver in nginx before 1.8.1 and 1.9.x before 1.9.10 does not properly limit CNAME resolution, which allows remote attackers to cause a denial of service (worker process resource consumption) via vectors related to arbitrary name resolution.

Do I need to act?

!
33.2% chance of exploitation in next 30 days
EPSS score — higher than 67% of all CVEs
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
5
CVSS 5.3/10 Medium
NETWORK / LOW complexity

Affected Products (8)

Affected Vendors

F5 Apple Canonical Opensuse Debian

References (22)

Mailing List http://lists.opensuse.org/opensuse-updates/2016-02/msg00042.html
Vendor Advisory http://mailman.nginx.org/pipermail/nginx/2016-January/049700.html
Mailing List http://seclists.org/fulldisclosure/2021/Sep/36
Third Party Advisory http://www.debian.org/security/2016/dsa-3473
Third Party Advisory http://www.securitytracker.com/id/1034869
Third Party Advisory http://www.ubuntu.com/usn/USN-2892-1
Third Party Advisory https://access.redhat.com/errata/RHSA-2016:1425
Third Party Advisory https://bto.bluecoat.com/security-advisory/sa115
Issue Tracking https://bugzilla.redhat.com/show_bug.cgi?id=1302589
Third Party Advisory https://security.gentoo.org/glsa/201606-06
Third Party Advisory https://support.apple.com/kb/HT212818
Mailing List http://lists.opensuse.org/opensuse-updates/2016-02/msg00042.html
Vendor Advisory http://mailman.nginx.org/pipermail/nginx/2016-January/049700.html
Mailing List http://seclists.org/fulldisclosure/2021/Sep/36
Third Party Advisory http://www.debian.org/security/2016/dsa-3473
Third Party Advisory http://www.securitytracker.com/id/1034869
Third Party Advisory http://www.ubuntu.com/usn/USN-2892-1
Third Party Advisory https://access.redhat.com/errata/RHSA-2016:1425
Third Party Advisory https://bto.bluecoat.com/security-advisory/sa115
Issue Tracking https://bugzilla.redhat.com/show_bug.cgi?id=1302589
and 2 more references
51
/ 100
high-risk
Severity 21/34 · High
Exploitability 16/34 · Moderate
Exposure 14/34 · Moderate