CVE-2015-3144

Severity: critical (CVSS 9.0 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 10.5% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2015-04-24 · updated 2026-06-17
Weakness: CWE-119

Description

The fix_hostname function in cURL and libcurl 7.37.0 through 7.41.0 does not properly calculate an index, which allows remote attackers to cause a denial of service (out-of-bounds read or write and crash) or possibly have other unspecified impact via a zero-length host name, as demonstrated by "http://:80" and ":80."

Affected products

Canonical Ubuntu Linux: 12.04, 14.04, 14.10, 15.04
Debian Linux: 7.0
curl: 7.37.0, 7.37.1, 7.38.0, 7.39.0, 7.40.0, 7.41.0
curl: 7.37.0, 7.37.1, 7.38.0, 7.39, 7.40.0, 7.41.0
Oracle Corporation MySQL Enterprise Monitor: through 2.3.20; through 3.0.22

References

http://curl.haxx.se/docs/adv_20150422D.html
http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10743
http://lists.apple.com/archives/security-announce/2015/Aug/msg00001.html
http://lists.fedoraproject.org/pipermail/package-announce/2015-April/155957.html
http://lists.fedoraproject.org/pipermail/package-announce/2015-May/156945.html
http://lists.fedoraproject.org/pipermail/package-announce/2015-May/157017.html
http://lists.fedoraproject.org/pipermail/package-announce/2015-May/157188.html
http://lists.opensuse.org/opensuse-updates/2015-04/msg00057.html
http://www.debian.org/security/2015/dsa-3232
http://www.oracle.com/technetwork/security-advisory/cpuoct2018-4428296.html
http://www.oracle.com/technetwork/topics/security/bulletinjan2016-2867206.html
http://www.oracle.com/technetwork/topics/security/cpuoct2015-2367953.html

Get alerted when CVE-2015-3144 or the next vulnerability affects your stack