- Vulnerability/
- USN-4745-1
23/2/2021
USN-4745-1: OpenSSL vulnerabilities
First published: Tue Feb 23 2021(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. (CVE-2020-1971) Tavis Ormandy discovered that OpenSSL incorrectly handled parsing issuer fields. A remote attacker could possibly use this issue to cause OpenSSL to crash, resulting in a denial of service. (CVE-2021-23841)
| Affected Software | Affected Version | How to fix |
|---|---|---|
| All of | ||
| ubuntu/libssl1.0.0 | <1.0.1f-1ubuntu2.27+esm2 | 1.0.1f-1ubuntu2.27+esm2 |
| Ubuntu Ubuntu | =14.04 | |
| All of | ||
| ubuntu/libssl1.0.0 | <1.0.1-4ubuntu5.45 | 1.0.1-4ubuntu5.45 |
| Ubuntu Ubuntu | =12.04 |
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Reference Links
- https://ubuntu.com/security/CVE-2021-23841
- https://ubuntu.com/security/CVE-2020-1971
- https://ubuntu.com/security/notices/USN-4738-1
- https://ubuntu.com/security/notices/USN-4662-1
- https://launchpad.net/ubuntu/+source/openssl/1.0.1f-1ubuntu2.27+esm2
- https://launchpad.net/ubuntu/+source/openssl/1.0.1-4ubuntu5.45
- https://ubuntu.com/security/notices/USN-4745-1 (Advisory)
- agent/severity
- collector/usn
- source/Ubuntu
- anchor-related/USN-4738-1
- anchor-related/USN-4662-1
- agent/software-canonical-lookup
- agent/references
- agent/last-modified-date
- agent/title
- agent/description
- agent/softwarecombine
- agent/event
- agent/type
- agent/first-publish-date
- agent/tags
- agent/trending
- package-manager/ubuntu
- vendor/ubuntu
- canonical/ubuntu ubuntu
- version/ubuntu ubuntu/14.04
- version/ubuntu ubuntu/12.04