{"id":"CVE-2011-3389","details":"The SSL protocol, as used in certain configurations in Microsoft Windows and Microsoft Internet Explorer, Mozilla Firefox, Google Chrome, Opera, and other products, encrypts data by using CBC mode with chained initialization vectors, which allows man-in-the-middle attackers to obtain plaintext HTTP headers via a blockwise chosen-boundary attack (BCBA) on an HTTPS session, in conjunction with JavaScript code that uses (1) the HTML5 WebSocket API, (2) the Java URLConnection API, or (3) the Silverlight WebClient API, aka a \"BEAST\" attack.","aliases":["CURL-CVE-2011-3389","PSF-2011-3"],"modified":"2026-04-10T03:41:57.944928Z","published":"2011-09-06T19:55:03Z","related":["CGA-rh32-ggmx-394w","SUSE-FU-2022:0444-1","SUSE-FU-2022:0445-1","SUSE-SU-2020:0114-1","SUSE-SU-2020:0234-1","openSUSE-SU-2020:0086-1","openSUSE-SU-2024:10194-1","openSUSE-SU-2024:10426-1","openSUSE-SU-2024:10451-1","openSUSE-SU-2024:10536-1","openSUSE-SU-2024:11202-1","openSUSE-SU-2024:11283-1","openSUSE-SU-2024:11284-1","openSUSE-SU-2024:11285-1","openSUSE-SU-2024:11286-1","openSUSE-SU-2024:12089-1","openSUSE-SU-2024:12910-1","openSUSE-SU-2024:14109-1","openSUSE-SU-2024:14434-1","openSUSE-SU-2025:15713-1"],"references":[{"type":"ADVISORY","url":"http://blog.mozilla.com/security/2011/09/27/attack-against-tls-protected-communications/"},{"type":"ADVISORY","url":"http://blogs.technet.com/b/msrc/archive/2011/09/26/microsoft-releases-security-advisory-2588513.aspx"},{"type":"ADVISORY","url":"http://blogs.technet.com/b/srd/archive/2011/09/26/is-ssl-broken-more-about-security-advisory-2588513.aspx"},{"type":"ADVISORY","url":"http://curl.haxx.se/docs/adv_20120124B.html"},{"type":"ADVISORY","url":"http://downloads.asterisk.org/pub/security/AST-2016-001.html"},{"type":"ADVISORY","url":"http://eprint.iacr.org/2004/111"},{"type":"ADVISORY","url":"http://eprint.iacr.org/2006/136"},{"type":"ADVISORY","url":"http://googlechromereleases.blogspot.com/2011/10/chrome-stable-release.html"},{"type":"ADVISORY","url":"http://isc.sans.edu/diary/SSL+TLS+part+3+/11635"},{"type":"ADVISORY","url":"http://marc.info/?l=bugtraq&m=132750579901589&w=2"},{"type":"ADVISORY","url":"http://marc.info/?l=bugtraq&m=132872385320240&w=2"},{"type":"ADVISORY","url":"http://marc.info/?l=bugtraq&m=133365109612558&w=2"},{"type":"ADVISORY","url":"http://marc.info/?l=bugtraq&m=133728004526190&w=2"},{"type":"ADVISORY","url":"http://marc.info/?l=bugtraq&m=134254866602253&w=2"},{"type":"ADVISORY","url":"http://marc.info/?l=bugtraq&m=134254957702612&w=2"},{"type":"ADVISORY","url":"http://my.opera.com/securitygroup/blog/2011/09/28/the-beast-ssl-tls-issue"},{"type":"ADVISORY","url":"http://rhn.redhat.com/errata/RHSA-2012-0508.html"},{"type":"ADVISORY","url":"http://rhn.redhat.com/errata/RHSA-2013-1455.html"},{"type":"ADVISORY","url":"http://secunia.com/advisories/45791"},{"type":"ADVISORY","url":"http://secunia.com/advisories/47998"},{"type":"ADVISORY","url":"http://secunia.com/advisories/48256"},{"type":"ADVISORY","url":"http://secunia.com/advisories/48692"},{"type":"ADVISORY","url":"http://secunia.com/advisories/48915"},{"type":"ADVISORY","url":"http://secunia.com/advisories/48948"},{"type":"ADVISORY","url":"http://secunia.com/advisories/49198"},{"type":"ADVISORY","url":"http://secunia.com/advisories/55322"},{"type":"ADVISORY","url":"http://secunia.com/advisories/55350"},{"type":"ADVISORY","url":"http://secunia.com/advisories/55351"},{"type":"ADVISORY","url":"http://security.gentoo.org/glsa/glsa-201203-02.xml"},{"type":"ADVISORY","url":"http://security.gentoo.org/glsa/glsa-201406-32.xml"},{"type":"ADVISORY","url":"http://support.apple.com/kb/HT4999"},{"type":"ADVISORY","url":"http://support.apple.com/kb/HT5001"},{"type":"ADVISORY","url":"http://support.apple.com/kb/HT5130"},{"type":"ADVISORY","url":"http://support.apple.com/kb/HT5501"},{"type":"ADVISORY","url":"http://support.apple.com/kb/HT6150"},{"type":"ADVISORY","url":"http://technet.microsoft.com/security/advisory/2588513"},{"type":"ADVISORY","url":"http://vnhacker.blogspot.com/2011/09/beast.html"},{"type":"ADVISORY","url":"http://www.apcmedia.com/salestools/SJHN-7RKGNM/SJHN-7RKGNM_R4_EN.pdf"},{"type":"ADVISORY","url":"http://www.debian.org/security/2012/dsa-2398"},{"type":"ADVISORY","url":"http://www.ibm.com/developerworks/java/jdk/alerts/"},{"type":"ADVISORY","url":"http://www.imperialviolet.org/2011/09/23/chromeandbeast.html"},{"type":"ADVISORY","url":"http://www.kb.cert.org/vuls/id/864643"},{"type":"ADVISORY","url":"http://www.mandriva.com/security/advisories?name=MDVSA-2012:058"},{"type":"ADVISORY","url":"http://www.opera.com/docs/changelogs/mac/1151/"},{"type":"ADVISORY","url":"http://www.opera.com/docs/changelogs/mac/1160/"},{"type":"ADVISORY","url":"http://www.opera.com/docs/changelogs/unix/1151/"},{"type":"ADVISORY","url":"http://www.opera.com/docs/changelogs/unix/1160/"},{"type":"ADVISORY","url":"http://www.opera.com/docs/changelogs/windows/1151/"},{"type":"ADVISORY","url":"http://www.opera.com/docs/changelogs/windows/1160/"},{"type":"ADVISORY","url":"http://www.opera.com/support/kb/view/1004/"},{"type":"ADVISORY","url":"http://www.oracle.com/technetwork/topics/security/cpujan2015-1972971.html"},{"type":"ADVISORY","url":"http://www.oracle.com/technetwork/topics/security/cpujul2015-2367936.html"},{"type":"ADVISORY","url":"http://www.oracle.com/technetwork/topics/security/javacpuoct2011-443431.html"},{"type":"ADVISORY","url":"http://www.redhat.com/support/errata/RHSA-2011-1384.html"},{"type":"ADVISORY","url":"http://www.redhat.com/support/errata/RHSA-2012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