UBUNTU-CVE-2022-2068
In addition to the c_rehash shell command injection identified in CVE-2022-1292, further circumstances where the c_rehash script does not properly sanitise shell metacharacters to prevent command injection were found by code review. When the CVE-2022-1292 was fixed it was not discovered that there are other places in the script where the file names of certificates being hashed were possibly passed to a command executed through the shell. This script is distributed by some operating systems in a manner where it is automatically executed. On such operating systems, an attacker could execute arbitrary commands with the privileges of the script. Use of the c_rehash script is considered obsolete and should be replaced by the OpenSSL rehash command line tool. Fixed in OpenSSL 3.0.4 (Affected 3.0.0,3.0.1,3.0.2,3.0.3). Fixed in OpenSSL 1.1.1p (Affected 1.1.1-1.1.1o). Fixed in OpenSSL 1.0.2zf (Affected 1.0.2-1.0.2ze).
02 / AFFECTED SOFTWARE
Affected packages
23 explicit affected versions
13 explicit affected versions
16 explicit affected versions
5 explicit affected versions
7 explicit affected versions
37 explicit affected versions
7 explicit affected versions
29 explicit affected versions
11 explicit affected versions
5 explicit affected versions
9 explicit affected versions
7 explicit affected versions
2 explicit affected versions
2 explicit affected versions
03 / CONNECTIONS
Connected vulnerabilities
04 / EVIDENCE
Source records
In addition to the c_rehash shell command injection identified in CVE-2022-1292, further circumstances where the c_rehash script does not properly sanitise shell metacharacters to prevent command injection were found by code review. When the CVE-2022-1292 was fixed it was not discovered that there are other places in the script where the file names of certificates being hashed were possibly passed to a command executed through the shell. This script is distributed by some operating systems in a manner where it is automatically executed. On such operating systems, an attacker could execute arbitrary commands with the privileges of the script. Use of the c_rehash script is considered obsolete and should be replaced by the OpenSSL rehash command line tool. Fixed in OpenSSL 3.0.4 (Affected 3.0.0,3.0.1,3.0.2,3.0.3). Fixed in OpenSSL 1.1.1p (Affected 1.1.1-1.1.1o). Fixed in OpenSSL 1.0.2zf (Affected 1.0.2-1.0.2ze).
05 / REFERENCES
Further evidence
- https://ubuntu.com/security/CVE-2022-2068
- https://ubuntu.com/security/notices/USN-5488-1
- https://ubuntu.com/security/notices/USN-5488-2
- https://ubuntu.com/security/notices/USN-6457-1
- https://ubuntu.com/security/notices/USN-7018-1
- https://www.cve.org/CVERecord?id=CVE-2022-2068
- https://www.openssl.org/news/secadv/20220621.txt