CVE-2015-5730

NameCVE-2015-5730
DescriptionThe sanitize_widget_instance function in wp-includes/class-wp-customize-widgets.php in WordPress before 4.2.4 does not use a constant-time comparison for widgets, which allows remote attackers to conduct a timing side-channel attack by measuring the delay before inequality is calculated.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
ReferencesDSA-3332-1
Debian Bugs794560

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
wordpress (PTS)jessie, jessie (lts)4.1.35+dfsg-0+deb8u1fixed
stretch (security), stretch (lts), stretch4.7.23+dfsg-0+deb9u1fixed
buster5.0.15+dfsg1-0+deb10u1fixed
buster (security)5.0.21+dfsg1-0+deb10u1fixed
bullseye (security), bullseye5.7.8+dfsg1-0+deb11u2fixed
bookworm6.1.1+dfsg1-1fixed
sid, trixie6.4.3+dfsg1-1fixed

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
wordpresssourcesqueeze(not affected)
wordpresssourcewheezy(not affected)
wordpresssourcejessie4.1+dfsg-1+deb8u4DSA-3332-1
wordpresssource(unstable)4.2.4+dfsg-1794560

Notes

[squeeze] - wordpress <not-affected> (Vulnerable code introduced later)
[wheezy] - wordpress <not-affected> (Vulnerable code introduced later)
https://core.trac.wordpress.org/changeset/33535
https://core.trac.wordpress.org/changeset/33536

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