- Vulnerability/
- USN-4662-1
USN-4662-1: OpenSSL vulnerability
First published: Tue Dec 08 2020(Updated: )
David Benjamin discovered that OpenSSL incorrectly handled comparing certificates containing a EDIPartyName name type. A remote attacker could possibly use this issue to cause OpenSSL to crash, resulting in a denial of service.
| Affected Software | Affected Version | How to fix |
|---|---|---|
| All of | ||
| ubuntu/libssl1.1 | <1.1.1f-1ubuntu4.1 | 1.1.1f-1ubuntu4.1 |
| Ubuntu | =20.10 | |
| All of | ||
| ubuntu/libssl1.1 | <1.1.1f-1ubuntu2.1 | 1.1.1f-1ubuntu2.1 |
| Ubuntu | =20.04 | |
| All of | ||
| ubuntu/libssl1.0.0 | <1.0.2n-1ubuntu5.5 | 1.0.2n-1ubuntu5.5 |
| Ubuntu | =18.04 | |
| All of | ||
| ubuntu/libssl1.1 | <1.1.1-1ubuntu2.1~18.04.7 | 1.1.1-1ubuntu2.1~18.04.7 |
| Ubuntu | =18.04 | |
| All of | ||
| ubuntu/libssl1.0.0 | <1.0.2g-1ubuntu4.18 | 1.0.2g-1ubuntu4.18 |
| Ubuntu | =16.04 |
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Reference Links
- https://ubuntu.com/security/CVE-2020-1971
- https://ubuntu.com/security/notices/USN-4745-1
- https://launchpad.net/ubuntu/+source/openssl/1.1.1f-1ubuntu4.1
- https://launchpad.net/ubuntu/+source/openssl/1.1.1f-1ubuntu2.1
- https://launchpad.net/ubuntu/+source/openssl1.0/1.0.2n-1ubuntu5.5
- https://launchpad.net/ubuntu/+source/openssl/1.1.1-1ubuntu2.1~18.04.7
- https://launchpad.net/ubuntu/+source/openssl/1.0.2g-1ubuntu4.18
- https://ubuntu.com/security/notices/USN-4662-1 (Advisory)
Frequently Asked Questions
What is the severity of USN-4662-1?
The USN-4662-1 vulnerability has a severity rating that suggests it could lead to a denial of service if exploited.
How do I fix USN-4662-1?
To fix USN-4662-1, update OpenSSL to the recommended version for your specific Ubuntu release.
What specific versions of Ubuntu are affected by USN-4662-1?
USN-4662-1 affects Ubuntu versions 16.04, 18.04, 20.04, and 20.10.
Can USN-4662-1 allow remote code execution?
No, USN-4662-1 does not allow remote code execution; it primarily leads to a denial of service.
How can I identify if my system is vulnerable to USN-4662-1?
You can identify if your system is vulnerable to USN-4662-1 by checking the version of the libssl package installed on your Ubuntu system.
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