USN-1029-1: OpenSSL vulnerabilities

Releases

• Ubuntu 10.10
• Ubuntu 10.04
• Ubuntu 9.10
• Ubuntu 8.04
• Ubuntu 6.06

Packages

• openssl -

Details

It was discovered that an old bug workaround in the SSL/TLS
server code allowed an attacker to modify the stored session cache
ciphersuite. This could possibly allow an attacker to downgrade the
ciphersuite to a weaker one on subsequent connections. (CVE-2010-4180)

It was discovered that an old bug workaround in the SSL/TLS
server code allowed an attacker to modify the stored session cache
ciphersuite. An attacker could possibly take advantage of this to
force the use of a disabled cipher. This vulnerability only affects
the versions of OpenSSL in Ubuntu 6.06 LTS, Ubuntu 8.04 LTS, and
Ubuntu 9.10. (CVE-2008-7270)

Update instructions

The problem can be corrected by updating your system to the following package versions:

Ubuntu 9.10

• libssl0.9.8 - 0.9.8g-16ubuntu3.5

Ubuntu 8.04

• libssl0.9.8 - 0.9.8g-4ubuntu3.13

Ubuntu 6.06

• libssl0.9.8 - 0.9.8a-7ubuntu0.14

Ubuntu 10.10

• libssl0.9.8 - 0.9.8o-1ubuntu4.3

Ubuntu 10.04

• libssl0.9.8 - 0.9.8k-7ubuntu8.5

After a standard system update you need to reboot your computer to make
all the necessary changes.

References

• CVE-2010-4180
• CVE-2008-7270