| <?xml version="1.0" encoding="utf-8"?> |
| <!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd"> |
| |
| <glsa id="200902-02"> |
| <title>OpenSSL: Certificate validation error</title> |
| <synopsis> |
| An error in the OpenSSL certificate chain validation might allow for |
| spoofing attacks. |
| </synopsis> |
| <product type="ebuild">openssl</product> |
| <announced>February 12, 2009</announced> |
| <revised>February 12, 2009: 01</revised> |
| <bug>251346</bug> |
| <access>remote</access> |
| <affected> |
| <package name="dev-libs/openssl" auto="yes" arch="*"> |
| <unaffected range="ge">0.9.8j</unaffected> |
| <vulnerable range="lt">0.9.8j</vulnerable> |
| </package> |
| </affected> |
| <background> |
| <p> |
| OpenSSL is an Open Source toolkit implementing the Secure Sockets Layer |
| (SSL v2/v3) and Transport Layer Security (TLS v1) as well as a general |
| purpose cryptography library. |
| </p> |
| </background> |
| <description> |
| <p> |
| The Google Security Team reported that several functions incorrectly |
| check the result after calling the EVP_VerifyFinal() function, allowing |
| a malformed signature to be treated as a good signature rather than as |
| an error. This issue affects the signature checks on DSA and ECDSA keys |
| used with SSL/TLS. |
| </p> |
| </description> |
| <impact type="normal"> |
| <p> |
| A remote attacker could exploit this vulnerability and spoof arbitrary |
| names to conduct Man-In-The-Middle attacks and intercept sensitive |
| information. |
| </p> |
| </impact> |
| <workaround> |
| <p> |
| There is no known workaround at this time. |
| </p> |
| </workaround> |
| <resolution> |
| <p> |
| All OpenSSL users should upgrade to the latest version: |
| </p> |
| <code> |
| # emerge --sync |
| # emerge --ask --oneshot --verbose ">=dev-libs/openssl-0.9.8j"</code> |
| </resolution> |
| <references> |
| <uri link="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-5077">CVE-2008-5077</uri> |
| </references> |
| <metadata tag="requester" timestamp="Tue, 13 Jan 2009 17:07:15 +0000"> |
| rbu |
| </metadata> |
| <metadata tag="bugReady" timestamp="Tue, 13 Jan 2009 17:07:33 +0000"> |
| rbu |
| </metadata> |
| <metadata tag="submitter" timestamp="Tue, 13 Jan 2009 17:14:56 +0000"> |
| rbu |
| </metadata> |
| </glsa> |