PT-2013-3844 · Ietf+1 · Ssl+2

Bertram Poettering + 4 · Published 2013-03-14 · Updated 2026-05-22 · CVE-2013-2566

Positive Technologies (AI Summary)

CVSS v2.0

4.3

Medium

Base vector

AV:N/AC:M/Au:N/C:P/I:N/A:N

Name of the Vulnerable Software and Affected Versions TLS protocol (affected versions not specified) SSL protocol (affected versions not specified)

Description The issue concerns the RC4 algorithm used in the TLS and SSL protocols, which contains single-byte biases. This weakness allows remote attackers to potentially recover plaintext through statistical analysis of ciphertext in multiple sessions that utilize the same plaintext.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Inadequate Encryption Strength

Weakness Enumeration

CWE-326

Related Identifiers

ALT-PU-2013-1150

ALT-PU-2013-1334

ALT-PU-2014-1201

CVE-2013-2566

MGASA-2013-0337

Affected Products

Alt Linux

Ssl

Tls

References · 34

• 🔥 https://github.com/rapid7/metasploit-framework/blob/master/modules/auxiliary/scanner/ssl/ssl_version.rb · Exploit
• https://mozilla.org/en-US/security/advisories/mfsa2013-103 · Vendor Advisory
• https://advisories.mageia.org/MGASA-2013-0337.html · Security Note
• https://security.gentoo.org/glsa/201504-01 · Vendor Advisory
• http://ubuntu.com/usn/USN-2032-1 · Vendor Advisory
• https://mozilla.org/en-US/firefox/24.1.1/releasenotes · Vendor Advisory
• http://marc.info/?l=bugtraq&m=143039468003789&w=2 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2013-2566 · Security Note
• https://osv.dev/vulnerability/MGASA-2013-0337 · Vendor Advisory
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2013-2566 · Security Note
• http://ubuntu.com/usn/USN-2031-1 · Vendor Advisory
• http://security.gentoo.org/glsa/glsa-201406-19.xml · Vendor Advisory
• https://developer.mozilla.org/en-US/docs/NSS/NSS_3.15.3_release_notes · Note
• https://groups.google.com/forum/#!topic/mozilla.dev.tech.nspr/_8AcygMEjSA · Note
• https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05336888 · Note