Ubuntu alert USN-4891-1 (openssl)
| From: | Marc Deslauriers <marc.deslauriers@canonical.com> | |
| To: | "ubuntu-security-announce@lists.ubuntu.com" <ubuntu-security-announce@lists.ubuntu.com> | |
| Subject: | [USN-4891-1] OpenSSL vulnerability | |
| Date: | Thu, 25 Mar 2021 11:39:18 -0400 | |
| Message-ID: | <d9f5529e-ad8f-f629-a4da-4cb29854fad0@canonical.com> |
========================================================================== Ubuntu Security Notice USN-4891-1 March 25, 2021 openssl vulnerability ========================================================================== A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 20.10 - Ubuntu 20.04 LTS - Ubuntu 18.04 LTS Summary: OpenSSL could be made to crash or run programs if it received specially crafted network traffic. Software Description: - openssl: Secure Socket Layer (SSL) cryptographic library and tools Details: It was discovered that OpenSSL incorrectly handled certain renegotiation ClientHello messages. A remote attacker could use this issue to cause OpenSSL to crash, resulting in a denial of service, or possibly execute arbitrary code. Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 20.10: libssl1.1 1.1.1f-1ubuntu4.3 Ubuntu 20.04 LTS: libssl1.1 1.1.1f-1ubuntu2.3 Ubuntu 18.04 LTS: libssl1.1 1.1.1-1ubuntu2.1~18.04.9 After a standard system update you need to reboot your computer to make all the necessary changes. References: https://ubuntu.com/security/notices/USN-4891-1 CVE-2021-3449 Package Information: https://launchpad.net/ubuntu/+source/openssl/1.1.1f-1ubun... https://launchpad.net/ubuntu/+source/openssl/1.1.1f-1ubun... https://launchpad.net/ubuntu/+source/openssl/1.1.1-1ubunt... -- ubuntu-security-announce mailing list ubuntu-security-announce@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-security...