CVE-2015-1269

Severity: medium (CVSS 4.3 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.7% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2015-06-26 · updated 2026-06-17
Weakness: CWE-254

Description

The DecodeHSTSPreloadRaw function in net/http/transport_security_state.cc in Google Chrome before 43.0.2357.130 does not properly canonicalize DNS hostnames before making comparisons to HSTS or HPKP preload entries, which allows remote attackers to bypass intended access restrictions via a string that (1) ends in a . (dot) character or (2) is not entirely lowercase.

Affected products

Google Chrome: through 43.0.2357.81

References

http://googlechromereleases.blogspot.com/2015/06/chrome-stable-update.html
http://lists.opensuse.org/opensuse-updates/2015-06/msg00057.html
http://lists.opensuse.org/opensuse-updates/2015-11/msg00012.html
http://rhn.redhat.com/errata/RHSA-2015-1188.html
http://www.debian.org/security/2015/dsa-3315
http://www.securityfocus.com/bid/75336
http://www.securitytracker.com/id/1032731
http://www.ubuntu.com/usn/USN-2652-1
https://code.google.com/p/chromium/issues/detail?id=461481
https://codereview.chromium.org/1149753002
https://security.gentoo.org/glsa/201507-18
http://googlechromereleases.blogspot.com/2015/06/chrome-stable-update.html

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