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securityvulnsSecurityvulnsSECURITYVULNS:DOC:14486
HistorySep 29, 2006 - 12:00 a.m.

[OpenPKG-SA-2006.021] OpenPKG Security Advisory (openssl)

2006-09-2900:00:00
vulners.com
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OpenPKG Security Advisory The OpenPKG Project
http://www.openpkg.org/security/ http://www.openpkg.org
[email protected] [email protected]
OpenPKG-SA-2006.021 28-Sep-2006


Package: openssl
Vulnerability: denial of service
OpenPKG Specific: no

Affected Releases: Affected Packages: Corrected Packages:
OpenPKG CURRENT <= openssl-0.9.8c-20060905 >= openssl-0.9.8d-20060928
OpenPKG 2-STABLE <= openssl-0.9.8c-2.20060906 >= openssl-0.9.8d-2.20060928
OpenPKG 2.5-RELEASE <= openssl-0.9.8a-2.5.2 >= openssl-0.9.8a-2.5.3

Description:
According to a vendor security advisory [0], four security issues
were discovered in the cryptography and SSL/TLS toolkit OpenSSL [1]:

  1. ASN.1 Denial of Service Attack (1/2)

    During the parsing of certain invalid ASN.1 structures an error
    condition is mishandled. This can result in an infinite loop which
    consumes system memory. The Common Vulnerabilities and Exposures
    (CVE) project assigned the id CVE-2006-2937 [2] to the problem.

  2. ASN.1 Denial of Service Attack (2/2)

    Certain types of public key can take disproportionate amounts of
    time to process. This could be used by an attacker in a denial of
    service attack. The Common Vulnerabilities and Exposures (CVE)
    project assigned the id CVE-2006-2940 [3] to the problem.

  3. SSL_get_shared_ciphers() Buffer Overflow

    A buffer overflow was discovered in the SSL_get_shared_ciphers()
    utility function. An attacker could send a list of ciphers to an
    application that uses this function and overrun a buffer. The
    Common Vulnerabilities and Exposures (CVE) project assigned the id
    CVE-2006-3780 [4] to the problem.

  4. SSLv2 Client Crash

    A flaw in the SSLv2 client code was discovered. When a client
    application used OpenSSL to create an SSLv2 connection to a
    malicious server, that server could cause the client to crash. The
    Common Vulnerabilities and Exposures (CVE) project assigned the id
    CVE-2006-4343 [5] to the problem.


References:
[0] http://www.openssl.org/news/secadv_20060928.txt
[1] http://www.openssl.org/
[2] http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-2937
[3] http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-2940
[4] http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-3738
[5] http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-4343


For security reasons, this advisory was digitally signed with the
OpenPGP public key "OpenPKG <[email protected]>" (ID 63C4CB9F) of the
OpenPKG project which you can retrieve from http://pgp.openpkg.org and
hkp://pgp.openpkg.org. Follow the instructions on http://pgp.openpkg.org
for details on how to verify the integrity of this advisory.


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