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SUSE: CVE-2022-4304: SUSE Linux Security Advisory

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SUSE: CVE-2022-4304: SUSE Linux Security Advisory

Severity
4
CVSS
(AV:L/AC:M/Au:N/C:P/I:P/A:P)
Published
02/07/2023
Created
02/08/2023
Added
02/08/2023
Modified
11/08/2023

Description

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.

Solution(s)

  • suse-upgrade-libopenssl-1_0_0-devel
  • suse-upgrade-libopenssl-1_0_0-devel-32bit
  • suse-upgrade-libopenssl-1_1-devel
  • suse-upgrade-libopenssl-1_1-devel-32bit
  • suse-upgrade-libopenssl-3-devel
  • suse-upgrade-libopenssl-3-devel-32bit
  • suse-upgrade-libopenssl-devel
  • suse-upgrade-libopenssl0_9_8
  • suse-upgrade-libopenssl0_9_8-32bit
  • suse-upgrade-libopenssl0_9_8-hmac
  • suse-upgrade-libopenssl0_9_8-hmac-32bit
  • suse-upgrade-libopenssl1-devel
  • suse-upgrade-libopenssl10
  • suse-upgrade-libopenssl1_0_0
  • suse-upgrade-libopenssl1_0_0-32bit
  • suse-upgrade-libopenssl1_0_0-hmac
  • suse-upgrade-libopenssl1_0_0-hmac-32bit
  • suse-upgrade-libopenssl1_0_0-steam
  • suse-upgrade-libopenssl1_0_0-steam-32bit
  • suse-upgrade-libopenssl1_1
  • suse-upgrade-libopenssl1_1-32bit
  • suse-upgrade-libopenssl1_1-hmac
  • suse-upgrade-libopenssl1_1-hmac-32bit
  • suse-upgrade-libopenssl3
  • suse-upgrade-libopenssl3-32bit
  • suse-upgrade-openssl
  • suse-upgrade-openssl-1_0_0
  • suse-upgrade-openssl-1_0_0-cavs
  • suse-upgrade-openssl-1_0_0-doc
  • suse-upgrade-openssl-1_1
  • suse-upgrade-openssl-1_1-doc
  • suse-upgrade-openssl-3
  • suse-upgrade-openssl-3-doc
  • suse-upgrade-openssl-doc
  • suse-upgrade-openssl1
  • suse-upgrade-openssl1-doc

References

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