Ubuntu Security Notice 5488-1 - Chancen and Daniel Fiala discovered that OpenSSL incorrectly handled the c_rehash script. A local attacker could possibly use this issue to execute arbitrary commands when c_rehash is run.
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Ubuntu Security Notice USN-5488-1
June 21, 2022
openssl, openssl1.0 vulnerability
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A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 22.04 LTS
- Ubuntu 21.10
- Ubuntu 20.04 LTS
- Ubuntu 18.04 LTS
Summary:
OpenSSL could be made to crash or run programs when the c_rehash script is
used.
Software Description:
- openssl: Secure Socket Layer (SSL) cryptographic library and tools
- openssl1.0: Secure Socket Layer (SSL) cryptographic library and tools
Details:
Chancen and Daniel Fiala discovered that OpenSSL incorrectly handled the
c_rehash script. A local attacker could possibly use this issue to execute
arbitrary commands when c_rehash is run.
Update instructions:
The problem can be corrected by updating your system to the following
package versions:
Ubuntu 22.04 LTS:
openssl 3.0.2-0ubuntu1.5
Ubuntu 21.10:
openssl 1.1.1l-1ubuntu1.5
Ubuntu 20.04 LTS:
openssl 1.1.1f-1ubuntu2.15
Ubuntu 18.04 LTS:
openssl 1.1.1-1ubuntu2.1~18.04.19
openssl1.0 1.0.2n-1ubuntu5.10
In general, a standard system update will make all the necessary changes.
References:
https://ubuntu.com/security/notices/USN-5488-1
CVE-2022-2068
Package Information:
https://launchpad.net/ubuntu/+source/openssl/3.0.2-0ubuntu1.5
https://launchpad.net/ubuntu/+source/openssl/1.1.1l-1ubuntu1.5
https://launchpad.net/ubuntu/+source/openssl/1.1.1f-1ubuntu2.15
https://launchpad.net/ubuntu/+source/openssl/1.1.1-1ubuntu2.1~18.04.19
https://launchpad.net/ubuntu/+source/openssl1.0/1.0.2n-1ubuntu5.10