Gentoo Forums
Gentoo Forums
Gentoo Forums
Quick Search: in
[ GLSA 200612-11 ] AMD64 x86 emulation base libraries: OpenSSL multiple vulnerabilities
View unanswered posts
View posts from last 24 hours

 
Reply to topic    Gentoo Forums Forum Index News & Announcements
View previous topic :: View next topic  
Author Message
GLSA
Veteran
Veteran


Joined: 12 May 2004
Posts: 1681

PostPosted: Tue Dec 12, 2006 12:26 am    Post subject: [ GLSA 200612-11 ] AMD64 x86 emulation base libraries: OpenS Reply with quote

Gentoo Linux Security Advisory

Title: AMD64 x86 emulation base libraries: OpenSSL multiple vulnerabilities (GLSA 200612-11)
Severity: high
Exploitable: remote
Date: December 11, 2006
Bug(s): #152640
ID: 200612-11

Synopsis

OpenSSL contains multiple vulnerabilities including the possible execution of remote arbitrary code.

Background

OpenSSL is a toolkit implementing the Secure Sockets Layer, Transport Layer Security protocols and a general-purpose cryptography library. The x86 emulation base libraries for AMD64 contain a vulnerable version of OpenSSL.

Affected Packages

Package: app-emulation/emul-linux-x86-baselibs
Vulnerable: < 2.5.5
Unaffected: >= 2.5.5
Architectures: amd64


Description

Tavis Ormandy and Will Drewry, both of the Google Security Team, discovered that the SSL_get_shared_ciphers() function contains a buffer overflow vulnerability, and that the SSLv2 client code contains a flaw leading to a crash. Additionally, Dr. Stephen N. Henson found that the ASN.1 handler contains two Denial of Service vulnerabilities: while parsing an invalid ASN.1 structure and while handling certain types of public key.

Impact

An attacker could trigger the buffer overflow by sending a malicious suite of ciphers to an application using the vulnerable function, and thus execute arbitrary code with the rights of the user running the application. An attacker could also consume CPU and/or memory by exploiting the Denial of Service vulnerabilities. Finally, a malicious server could crash a SSLv2 client through the SSLv2 vulnerability.

Workaround

There is no known workaround at this time.

Resolution

All AMD64 x86 emulation base libraries users should upgrade to the latest version:
Code:
# emerge --sync
# emerge --ask --oneshot --verbose ">=app-emulation/emul-linux-x86-baselibs-2.5.5"


References

CVE-2006-2937
CVE-2006-2940
CVE-2006-3738
CVE-2006-4343
Back to top
View user's profile Send private message
Display posts from previous:   
Reply to topic    Gentoo Forums Forum Index News & Announcements All times are GMT
Page 1 of 1

 
Jump to:  
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum