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AUSCERT External Security Bulletin Redistribution
ESB-2023.0705
USN-5845-2: OpenSSL vulnerabilities
8 February 2023
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AusCERT Security Bulletin Summary
---------------------------------
Product: OpenSSL
Publisher: Ubuntu
Operating System: Ubuntu
Resolution: Patch/Upgrade
CVE Names: CVE-2023-0286 CVE-2023-0215
Original Bulletin:
https://ubuntu.com/security/notices/USN-5845-2
Comment: CVSS (Max): 7.4 CVE-2023-0286 (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:H)
CVSS Source: Red Hat
Calculator: https://www.first.org/cvss/calculator/3.1#CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:H
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USN-5845-2: OpenSSL vulnerabilities
7 February 2023
Several security issues were fixed in OpenSSL.
Reduce your security exposure
Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and
Universe repositories, and it is free for up to five machines.
Learn more about Ubuntu Pro
Releases
o Ubuntu 16.04 ESM
o Ubuntu 14.04 ESM
Packages
o openssl - Secure Socket Layer (SSL) cryptographic library and tools
Details
USN-5845-1 fixed several vulnerabilities in OpenSSL. This update provides
the corresponding update for Ubuntu 14.04 ESM and Ubuntu 16.04 ESM.
Original advisory details:
David Benjamin discovered that OpenSSL incorrectly handled X.400 address
processing. A remote attacker could possibly use this issue to read
arbitrary memory contents or cause OpenSSL to crash, resulting in a denial
of service. ( CVE-2023-0286 )
Octavio Galland and Marcel Bohme discovered that OpenSSL incorrectly
handled streaming ASN.1 data. A remote attacker could use this issue to
cause OpenSSL to crash, resulting in a denial of service, or possibly
execute arbitrary code. ( CVE-2023-0215 )
Reduce your security exposure
Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and
Universe repositories, and it is free for up to five machines.
Learn more about Ubuntu Pro
Update instructions
The problem can be corrected by updating your system to the following package
versions:
Ubuntu 16.04
o libssl1.0.0 - 1.0.2g-1ubuntu4.20+esm6
Available with Ubuntu Pro
Ubuntu 14.04
o libssl1.0.0 - 1.0.1f-1ubuntu2.27+esm6
Available with Ubuntu Pro
After a standard system update you need to reboot your computer to make all
the necessary changes.
References
o CVE-2023-0286
o CVE-2023-0215
Related notices
o USN-5844-1 : openssl, libssl3, libssl1.1, libssl-dev, libssl-doc
o USN-5845-1 : libssl1.0-dev, openssl1.0, libssl1.0.0
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