USN-1003-1: OpenSSL vulnerabilities

Publication date

7 October 2010

Overview


Packages

Details

It was discovered that OpenSSL incorrectly handled return codes from the
bn_wexpand function calls. A remote attacker could trigger this flaw in
services that used SSL to cause a denial of service or possibly execute
arbitrary code with application privileges. This issue only affected Ubuntu
6.06 LTS, 8.04 LTS, 9.04 and 9.10. (CVE-2009-3245)

It was discovered that OpenSSL incorrectly handled certain private keys
with an invalid prime. A remote attacker could trigger this flaw in
services that used SSL to cause a denial of service or possibly execute
arbitrary code with application privileges. The default compiler options
for affected releases should reduce the vulnerability to a denial of
service. (CVE-2010-2939)

It was discovered that OpenSSL incorrectly handled return codes from the
bn_wexpand function calls. A remote attacker could trigger this flaw in
services that used SSL to cause a denial of service or possibly execute
arbitrary code with application privileges. This issue only affected Ubuntu
6.06 LTS, 8.04 LTS, 9.04 and 9.10. (CVE-2009-3245)

It was discovered that OpenSSL incorrectly handled certain private keys
with an invalid prime. A remote attacker could trigger this flaw in
services that used SSL to cause a denial of service or possibly execute
arbitrary code with application privileges. The default compiler options
for affected releases should reduce the vulnerability to a denial of
service. (CVE-2010-2939)

Update instructions

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

Learn more about how to get the fixes.

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

Ubuntu Release Package Version
9.10 karmic libssl0.9.8 –  0.9.8g-16ubuntu3.3
9.04 jaunty libssl0.9.8 –  0.9.8g-15ubuntu3.6
8.04 hardy libssl0.9.8 –  0.9.8g-4ubuntu3.11
6.06 dapper libssl0.9.8 –  0.9.8a-7ubuntu0.13
10.10 maverick libssl0.9.8 –  0.9.8o-1ubuntu4.1
10.04 lucid libssl0.9.8 –  0.9.8k-7ubuntu8.3

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