https://cve.radiocsirt.org Contains only the most 10 recent entries. http://www.rssboard.org/rss-specification python-feedgen en Tue, 06 Oct 2026 22:30:19 +0000 https://cve.radiocsirt.org/vuln/ubuntu-cve-2022-4304 <p><strong>Affected:</strong> Ubuntu:Pro:14.04:LTS: openssl, Ubuntu:Pro:16.04:LTS: openssl, Ubuntu:Pro:16.04:LTS: edk2, Ubuntu:Pro:FIPS-updates:16.04:LTS: openssl, Ubuntu:Pro:FIPS:16.04:LTS: openssl, Ubuntu:18.04:LTS: openssl, Ubuntu:Pro:18.04:LTS: openssl1.0, Ubuntu:Pro:18.04:LTS: edk2, Ubuntu:Pro:FIPS-updates:18.04:LTS: openssl, Ubuntu:Pro:FIPS:18.04:LTS: openssl and 7 more</p> <p>A timing based side channel exists in the OpenSSL RSA Decryption implementation which could be sufficient to recover a plaintext across a network in a Bleichenbacher style attack. To achieve a successful decryption an attacker would have to be able to send a very large number of trial messages for decryption. The vulnerability affects all RSA padding modes: PKCS#1 v1.5, RSA-OEAP and RSASVE. For example, in a TLS connection, RSA is commonly used by a client to send an encrypted pre-master secret to the server. An attacker that had observed a genuine connection between a client and a server could use this flaw to send trial messages to the server and record the time taken to process them. After a sufficiently large number of messages the attacker could recover the pre-master secret used for the original connection and thus be able to decrypt the application data sent over that connection.</p> <p><strong>Affected:</strong> Ubuntu:Pro:14.04:LTS: openssl, Ubuntu:Pro:16.04:LTS: openssl, Ubuntu:Pro:16.04:LTS: edk2, Ubuntu:Pro:FIPS-updates:16.04:LTS: openssl, Ubuntu:Pro:FIPS:16.04:LTS: openssl, Ubuntu:18.04:LTS: openssl, Ubuntu:Pro:18.04:LTS: openssl1.0, Ubuntu:Pro:18.04:LTS: edk2, Ubuntu:Pro:FIPS-updates:18.04:LTS: openssl, Ubuntu:Pro:FIPS:18.04:LTS: openssl and 7 more</p> <p>A timing based side channel exists in the OpenSSL RSA Decryption implementation which could be sufficient to recover a plaintext across a network in a Bleichenbacher style attack. To achieve a successful decryption an attacker would have to be able to send a very large number of trial messages for decryption. The vulnerability affects all RSA padding modes: PKCS#1 v1.5, RSA-OEAP and RSASVE. For example, in a TLS connection, RSA is commonly used by a client to send an encrypted pre-master secret to the server. An attacker that had observed a genuine connection between a client and a server could use this flaw to send trial messages to the server and record the time taken to process them. After a sufficiently large number of messages the attacker could recover the pre-master secret used for the original connection and thus be able to decrypt the application data sent over that connection.</p> https://cve.radiocsirt.org/vuln/ubuntu-cve-2022-4304