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

Type securityvulns
Reporter Securityvulns
Modified 2006-09-29T00:00:00



OpenPKG Security Advisory The OpenPKG Project http://www.openpkg.org/security/ http://www.openpkg.org openpkg-security@openpkg.org openpkg@openpkg.org 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 <openpkg@openpkg.org>" (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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