CVE-2022-4304: Timing Oracle in RSA Decryption

Published Jan 25, 2023
·
Updated

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.

Other sources

A timing based side channel exists in the OpenSSL RSA Decryption implementation which could be sufficient to recover a ciphertext 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.

— Red Hat

A timing-based side channel exists in the OpenSSL RSA Decryption implementation, which could be sufficient to recover a ciphertext 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. This issue affects all RSA padding modes: PKCS#1 v1.5, RSA-OEAP, and RSASVE.

OpenSSL could allow a remote attacker to obtain sensitive information, caused by a timing-based side channel in the RSA Decryption implementation. By sending an overly large number of trial messages for decryption, an attacker could exploit this vulnerability to obtain sensitive information.

— IBM

Affected Software

52 affected componentsFixes available
redhat/jbcs-httpd24-openssl<1:1.1.1k-14.el8
1:1.1.1k-14.el8
redhat/jbcs-httpd24-openssl<1:1.1.1k-14.el7
1:1.1.1k-14.el7
redhat/edk2<0:20220126gitbb1bba3d77-4.el8
0:20220126gitbb1bba3d77-4.el8
redhat/openssl<1:1.1.1k-9.el8_7
1:1.1.1k-9.el8_7
redhat/edk2<0:20220126gitbb1bba3d77-2.el8_6.1
0:20220126gitbb1bba3d77-2.el8_6.1
redhat/openssl<1:1.1.1k-9.el8_6
1:1.1.1k-9.el8_6
redhat/openssl<1:3.0.1-47.el9_1
1:3.0.1-47.el9_1
redhat/edk2<0:20221207gitfff6d81270b5-9.el9_2
0:20221207gitfff6d81270b5-9.el9_2
redhat/openssl<1:3.0.1-46.el9_0
1:3.0.1-46.el9_0
redhat/jws5-tomcat-native<0:1.2.31-14.redhat_14.el7
0:1.2.31-14.redhat_14.el7
redhat/jws5-tomcat-native<0:1.2.31-14.redhat_14.el8
0:1.2.31-14.redhat_14.el8
redhat/jws5-tomcat-native<0:1.2.31-14.redhat_14.el9
0:1.2.31-14.redhat_14.el9
rust/openssl-src>=300.0.0<300.0.12
300.0.12
rust/openssl-src<111.25.0
111.25.0
IBM Cloud Pak for Business Automation<=V22.0.2 - V22.0.2-IF004
IBM Cloud Pak for Business Automation<=V21.0.3 - V21.0.3-IF020
IBM Cloud Pak for Business Automation<=V22.0.1 - V22.0.1-IF006 and later fixesV21.0.2 - V21.0.2-IF012 and later fixesV21.0.1 - V21.0.1-IF007 and later fixesV20.0.1 - V20.0.3 and later fixesV19.0.1 - V19.0.3 and later fixesV18.0.0 - V18.0.2 and later fixes
debian/openssl
1.1.1w-0+deb11u11.1.1n-0+deb11u53.0.14-1~deb12u13.0.14-1~deb12u23.3.2-1
OpenSSL OpenSSL>=1.0.2<1.0.2zg
OpenSSL OpenSSL>=1.1.1<1.1.1t
OpenSSL OpenSSL>=3.0.0<3.0.8
Stormshield Endpoint Security<7.2.40
Stormshield Sslvpn<3.2.1
Stormshield Stormshield Network Security>=2.7.0<2.7.11
Stormshield Stormshield Network Security>=2.8.0<3.7.34
Stormshield Stormshield Network Security>=3.8.0<3.11.22
Stormshield Stormshield Network Security>=4.0.0<4.3.16
Stormshield Stormshield Network Security>=4.4.0<4.6.3
F5 BIG-IP>=17.0.0<=17.1.0
17.1.117.1.0.1
F5 BIG-IP>=16.1.0<=16.1.4
16.1.5
F5 BIG-IP>=15.1.0<=15.1.9
15.1.10
F5 BIG-IP>=14.1.0<=14.1.5
F5 BIG-IP>=13.1.0<=13.1.5
F5 BIG-IP Next SPK>=1.5.0<=1.7.14
1.8.0
F5 BIG-IP Next CNF>=1.1.0<=1.1.1
1.2.0
F5 BIG-IQ Centralized Management>=8.0.0<=8.4.0
F5 BIG-IQ Centralized Management=7.1.0
F5 F5OS-A=1.3.1
F5 Traffix SDC=5.2.0
Microsoft cbl2 qemu 6.2.0-26
Microsoft cbl2 qemu 6.2.0-25
Microsoft cm1 cloud-hypervisor 22.0-2
Patch available
Microsoft cm1 openssl 1.1.1k-13
Patch available
Microsoft cm1 rust 1.59.0-1
Patch available
Microsoft azl3 hvloader 1.0.1-2
Patch available
Microsoft cbl2 hvloader 1.0.1-2
Patch available
Microsoft azl3 edk2 20230301gitf80f052277c8-37
Patch available
Microsoft azl3 edk2 20240223gitedc6681206c1-1
Patch available
Microsoft azl3 hvloader 1.0.1-4
Patch available
Microsoft cbl2 cloud-hypervisor 30.0-2
Patch available
Microsoft cbl2 openssl 1.1.1k-21
Patch available
Microsoft cbl2 rust 1.68.2-5
Patch available

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade redhat/jbcs-httpd24-openssl to a version that resolves this vulnerability.

    Fixed in 1:1.1.1k-14.el8
  2. Upgrade

    Upgrade redhat/jbcs-httpd24-openssl to a version that resolves this vulnerability.

    Fixed in 1:1.1.1k-14.el7
  3. Upgrade

    Upgrade redhat/edk2 to a version that resolves this vulnerability.

    Fixed in 0:20220126gitbb1bba3d77-4.el8
  4. Upgrade

    Upgrade redhat/openssl to a version that resolves this vulnerability.

    Fixed in 1:1.1.1k-9.el8_7
  5. Upgrade

    Upgrade redhat/edk2 to a version that resolves this vulnerability.

    Fixed in 0:20220126gitbb1bba3d77-2.el8_6.1
  6. Upgrade

    Upgrade redhat/openssl to a version that resolves this vulnerability.

    Fixed in 1:1.1.1k-9.el8_6
  7. Upgrade

    Upgrade redhat/openssl to a version that resolves this vulnerability.

    Fixed in 1:3.0.1-47.el9_1
  8. Upgrade

    Upgrade redhat/edk2 to a version that resolves this vulnerability.

    Fixed in 0:20221207gitfff6d81270b5-9.el9_2
  9. Upgrade

    Upgrade redhat/openssl to a version that resolves this vulnerability.

    Fixed in 1:3.0.1-46.el9_0
  10. Upgrade

    Upgrade redhat/jws5-tomcat-native to a version that resolves this vulnerability.

    Fixed in 0:1.2.31-14.redhat_14.el7
  11. Upgrade

    Upgrade redhat/jws5-tomcat-native to a version that resolves this vulnerability.

    Fixed in 0:1.2.31-14.redhat_14.el8
  12. Upgrade

    Upgrade redhat/jws5-tomcat-native to a version that resolves this vulnerability.

    Fixed in 0:1.2.31-14.redhat_14.el9
  13. Upgrade

    Upgrade rust/openssl-src to a version that resolves this vulnerability.

    Fixed in 300.0.12
  14. Upgrade

    Upgrade rust/openssl-src to a version that resolves this vulnerability.

    Fixed in 111.25.0
  15. Upgrade

    Upgrade debian/openssl to a version that resolves this vulnerability.

    Fixed in 1.1.1w-0+deb11u1Fixed in 1.1.1n-0+deb11u5Fixed in 3.0.14-1~deb12u1Fixed in 3.0.14-1~deb12u2Fixed in 3.3.2-1
  16. Upgrade

    Upgrade F5 BIG-IP and BIG-IQ Centralized Management to a version that resolves this vulnerability.

    Fixed in 17.1.117.1.0.1
  17. Upgrade

    Upgrade F5 BIG-IP and BIG-IQ Centralized Management to a version that resolves this vulnerability.

    Fixed in 16.1.5
  18. Upgrade

    Upgrade F5 BIG-IP and BIG-IQ Centralized Management to a version that resolves this vulnerability.

    Fixed in 15.1.10
  19. Upgrade

    Upgrade F5 BIG-IP Next to a version that resolves this vulnerability.

    Fixed in 1.8.0
  20. Upgrade

    Upgrade F5 BIG-IP Next to a version that resolves this vulnerability.

    Fixed in 1.2.0

Event History

Jan 25, 2023
Data Sourced
via Red Hat·03:18 PM
DescriptionSeverityAffected Software
Feb 7, 2023
CVE Published
12:00 AM
Feb 8, 2023
CVE Published
via MITRE·07:04 PM
Data Sourced
via MITRE·07:04 PM
DescriptionWeakness
Data Sourced
via NVD·08:15 PM
DescriptionSeverityWeaknessAffected Software
Advisory Published
via GitHub·10:31 PM
Feb 13, 2023
Data Sourced
via Microsoft·12:00 AM
DescriptionSeverityWeaknessAffected Software
Updated
via Microsoft·12:00 AM
Affected Software
Updated
via Microsoft·12:00 AM
SeverityAffected Software
Updated
via Microsoft·08:00 AM
DescriptionSeverityWeakness
Updated
via Microsoft·08:00 AM
Affected Software
Mar 13, 2023
Advisory Published
via F5·05:23 PM
Feb 21, 2024
Data Sourced
via Launchpad·12:36 AM
Description
Sep 16, 2024
Data Sourced
via Ubuntu·03:40 AM
RemedyDescriptionSeverityAffected Software

Parent advisories

This vulnerability appears in the following advisories.

Frequently Asked Questions

1

What is CVE-2022-4304?

CVE-2022-4304 is a vulnerability in the OpenSSL RSA Decryption implementation that allows an attacker to recover plaintext data in a Bleichenbacher style attack.

2

What is the severity of CVE-2022-4304?

The severity of CVE-2022-4304 is medium with a CVSS score of 5.9.

3

Which software versions are affected by CVE-2022-4304?

OpenSSL versions 1.0.2 to 1.0.2zg, 1.1.1 to 1.1.1t, and 3.0.0 to 3.0.8 are affected by CVE-2022-4304.

4

How can an attacker exploit CVE-2022-4304?

An attacker can exploit CVE-2022-4304 by sending a large number of trial messages to perform a timing-based side channel attack.

5

Is there a patch available for CVE-2022-4304?

Yes, patches are available for the affected versions of OpenSSL.

Company

Resources

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