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CVE-2012-4929 The 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....

LowCVSS 2.6 EPSS 4.3%
Published
Updated
Exploit status
No public exploit known
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Description

The 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.

Affected products

ProductAffected versionsFixed in
debian/apache2(Debian:12) < 2.2.22-12 2.2.22-12
debian/apache2(Debian:13) < 2.2.22-12 2.2.22-12
debian/apache2(Debian:14) < 2.2.22-12 2.2.22-12
debian/lighttpd(Debian:12) < 1.4.30-1 1.4.30-1
debian/lighttpd(Debian:13) < 1.4.30-1 1.4.30-1
debian/lighttpd(Debian:14) < 1.4.30-1 1.4.30-1
debian/nginx(Debian:12) < 1.2.1-2.2 1.2.1-2.2
debian/nginx(Debian:13) < 1.2.1-2.2 1.2.1-2.2
debian/nginx(Debian:14) < 1.2.1-2.2 1.2.1-2.2
debian/openssl(Debian:12) < 1.0.1e-5 1.0.1e-5
debian/openssl(Debian:13) < 1.0.1e-5 1.0.1e-5
debian/openssl(Debian:14) < 1.0.1e-5 1.0.1e-5
debian/pound(Debian:13) < 2.6-3 2.6-3
debian/pound(Debian:14) < 2.6-3 2.6-3
debian linux = 7.0 No fix listed
debian linux = 8.0 No fix listed
Google Chrome All versions No fix listed
mozilla Firefox All versions No fix listed

References