USN-4738-1: OpenSSL vulnerabilities
18 February 2021
Several security issues were fixed in OpenSSL.
Paul Kehrer discovered that OpenSSL incorrectly handled certain input
lengths in EVP functions. A remote attacker could possibly use this issue
to cause OpenSSL to crash, resulting in a denial of service.
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)
The problem can be corrected by updating your system to the following package versions:
After a standard system update you need to reboot your computer to make
all the necessary changes.
- USN-4745-1: libssl-dev, libcrypto1.0.0-udeb, libssl1.0.0-udeb, libssl-doc, openssl, libssl1.0.0