Vulnerability Monitor

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CVE-2013-1623

The TLS and DTLS implementations in wolfSSL CyaSSL before 2.5.0 do not properly consider timing side-channel attacks on a noncompliant MAC check operation during the processing of malformed CBC padding, which allows remote attackers to conduct distinguishing attacks and plaintext-recovery attacks via statistical analysis of timing data for crafted packets, a related issue to CVE-2013-0169.

Published

2013-02-08T19:55:01.407

Last Modified

2025-04-11T00:51:21.963

Status

Deferred

Source

[email protected]

Severity

CVSSv2: 4.3 (MEDIUM)

CVSSv2 Vector

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

Access Vector: NETWORK
Access Complexity: MEDIUM
Authentication: NONE
Confidentiality Impact: PARTIAL
Integrity Impact: NONE
Availability Impact: NONE

Exploitability Score

8.6

Impact Score

2.9

Weaknesses

Type: Primary
CWE-310

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	yassl	cyassl	≤ 2.4.6	Yes
Application	yassl	cyassl	0.2.0	Yes
Application	yassl	cyassl	0.3.0	Yes
Application	yassl	cyassl	0.4.0	Yes
Application	yassl	cyassl	0.5.0	Yes
Application	yassl	cyassl	0.5.5	Yes
Application	yassl	cyassl	0.6.0	Yes
Application	yassl	cyassl	0.6.2	Yes
Application	yassl	cyassl	0.6.3	Yes
Application	yassl	cyassl	0.8.0	Yes
Application	yassl	cyassl	0.9.0	Yes
Application	yassl	cyassl	0.9.6	Yes
Application	yassl	cyassl	0.9.8	Yes
Application	yassl	cyassl	0.9.9	Yes
Application	yassl	cyassl	1.0.0	Yes
Application	yassl	cyassl	1.0.0	Yes
Application	yassl	cyassl	1.0.0	Yes
Application	yassl	cyassl	1.0.2	Yes
Application	yassl	cyassl	1.0.3	Yes
Application	yassl	cyassl	1.0.6	Yes
Application	yassl	cyassl	1.1.0	Yes
Application	yassl	cyassl	1.2.0	Yes
Application	yassl	cyassl	1.3.0	Yes
Application	yassl	cyassl	1.4.0	Yes
Application	yassl	cyassl	1.5.0	Yes
Application	yassl	cyassl	1.5.4	Yes
Application	yassl	cyassl	1.5.6	Yes
Application	yassl	cyassl	1.6.0	Yes
Application	yassl	cyassl	1.6.5	Yes
Application	yassl	cyassl	1.8.0	Yes
Application	yassl	cyassl	1.9.0	Yes
Application	yassl	cyassl	2.0.0	Yes
Application	yassl	cyassl	2.0.0	Yes
Application	yassl	cyassl	2.0.0	Yes
Application	yassl	cyassl	2.0.2	Yes
Application	yassl	cyassl	2.0.6	Yes
Application	yassl	cyassl	2.0.8	Yes
Application	yassl	cyassl	2.2.0	Yes
Application	yassl	cyassl	2.3.0	Yes
Application	yassl	cyassl	2.4.0	Yes

References

http://openwall.com/lists/oss-security/2013/02/05/24 ([email protected])
http://secunia.com/advisories/53372 ([email protected])
http://security.gentoo.org/glsa/glsa-201308-06.xml ([email protected])
http://www.isg.rhul.ac.uk/tls/TLStiming.pdf ([email protected])
http://www.yassl.com/yaSSL/Blog/Entries/2013/2/5_WolfSSL%2C_provider_of_CyaSSL_Embedded_SSL%2C_releases_first_embedded_TLS_and_DTLS_protocol_fix_for_Lucky_Thirteen_Attack.html ([email protected])
http://openwall.com/lists/oss-security/2013/02/05/24 (af854a3a-2127-422b-91ae-364da2661108)
http://secunia.com/advisories/53372 (af854a3a-2127-422b-91ae-364da2661108)
http://security.gentoo.org/glsa/glsa-201308-06.xml (af854a3a-2127-422b-91ae-364da2661108)
http://www.isg.rhul.ac.uk/tls/TLStiming.pdf (af854a3a-2127-422b-91ae-364da2661108)
http://www.yassl.com/yaSSL/Blog/Entries/2013/2/5_WolfSSL%2C_provider_of_CyaSSL_Embedded_SSL%2C_releases_first_embedded_TLS_and_DTLS_protocol_fix_for_Lucky_Thirteen_Attack.html (af854a3a-2127-422b-91ae-364da2661108)