CVE-2012-4929

NameCVE-2012-4929
DescriptionThe TLS protocol 1.2 and earlier, as used in Mozilla Firefox, Google Chrome, Qt, and other products, can encrypt compressed data without properly obfuscating the length of the unencrypted data, which allows man-in-the-middle attackers to obtain plaintext HTTP headers by observing length differences during a series of guesses in which a string in an HTTP request potentially matches an unknown string in an HTTP header, aka a "CRIME" attack.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub code/issues, web search, more)
ReferencesDLA-0008-1, DLA-400-1, DSA-2579-1, DSA-2626-1, DSA-2627-1, DSA-3253-1
NVD severitylow (attack range: remote)
Debian Bugs689936, 700399, 700426, 727197, 728055

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
apache2 (PTS)jessie (security), jessie2.4.10-10+deb8u12fixed
stretch2.4.25-3+deb9u6fixed
stretch (security)2.4.25-3+deb9u4fixed
buster, sid2.4.37-1fixed
chromium-browser (PTS)jessie (security), jessie57.0.2987.98-1~deb8u1fixed
stretch69.0.3497.92-1~deb9u1fixed
stretch (security)70.0.3538.102-1~deb9u1fixed
buster70.0.3538.67-2fixed
sid70.0.3538.102-1fixed
lighttpd (PTS)jessie (security), jessie1.4.35-4+deb8u1fixed
stretch1.4.45-1fixed
buster, sid1.4.49-1.1fixed
nginx (PTS)jessie1.6.2-5+deb8u5fixed
jessie (security)1.6.2-5+deb8u6fixed
stretch1.10.3-1+deb9u1fixed
stretch (security)1.10.3-1+deb9u2fixed
buster, sid1.14.1-1fixed
openssl (PTS)jessie1.0.1t-1+deb8u8fixed
jessie (security)1.0.1t-1+deb8u9fixed
stretch (security), stretch1.1.0f-3+deb9u2fixed
buster, sid1.1.1-2fixed
pound (PTS)jessie (security), jessie2.6-6+deb8u1fixed
stretch2.7-1.3fixed
qt4-x11 (PTS)jessie4:4.8.6+git64-g5dc8b2b+dfsg-3+deb8u1fixed
stretch4:4.8.7+dfsg-11fixed
buster, sid4:4.8.7+dfsg-17fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
apache2source(unstable)2.2.22-12low689936
apache2sourcesqueeze2.2.16-6+squeeze10lowDSA-2579-1
chromium-browsersource(unstable)22.0.1229.94~r161065-1low
chromium-browsersourcesqueeze(unfixed)end-of-life
iceweaselsource(unstable)(not affected)
lighttpdsource(unstable)1.4.30-1low700399
lighttpdsourcesqueeze1.4.28-2+squeeze1.2lowDSA-2626-1
nginxsource(unstable)1.2.1-2.2low700426
nginxsourcesqueeze0.7.67-3+squeeze3lowDSA-2627-1
opensslsource(unstable)1.0.1e-5low728055
opensslsourcesqueeze0.9.8o-4squeeze16low
opensslsourcewheezy1.0.1e-2+deb7u11low
poundsource(unstable)2.6-3low727197
poundsourcejessie2.6-6+deb8u1lowDSA-3253-1
poundsourcesqueeze2.6-1+deb6u1lowDLA-400-1
poundsourcewheezy2.6-2+deb7u1lowDSA-3253-1
qt4-x11source(unstable)4:4.8.2+dfsg-3low

Notes

- iceweasel <not-affected> (Firefox ESV not use TLS/SSL compression)
Chromium fix: https://chromiumcodereview.appspot.com/10825183/
[squeeze] - qt4-x11 <no-dsa> (Minor issue)
openssl redhat announcement https://rhn.redhat.com/errata/RHSA-2013-0587.html
openssl disables compression by default since dc5744cb78da6f2bcafeeefe22c604a51b52dfc5

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