USN-8847-1 fixed vulnerabilities in OpenSSL. This update provides the corresponding fix for OpenSSL on Ubuntu 14.04 LTS, Ubuntu 16.04 LTS, Ubuntu 18.04 LTS and Ubuntu 20.04 LTS. Original advisory details: It was discovered that OpenSSL incorrectly handled certain certificate revocation list distribution point names. An attacker could possibly use this issue to cause OpenSSL to consume excessive memory, resulting in a denial of service. ( CVE-2026-35189 ) It was discovered that OpenSSL incorrectly implemented scalar multiplication for non-NIST elliptic curves. An attacker could possibly use this issue to perform a timing side-channel attack and obtain sensitive information. This issue only affected Ubuntu 18.04 LTS and Ubuntu 20.04 LTS. ( CVE-2026-54872 ) It was discovered that OpenSSL incorrectly implemented SM2 signature ...
USN-8847-1 fixed vulnerabilities in OpenSSL. This update provides the corresponding fix for OpenSSL on Ubuntu 14.04 LTS, Ubuntu 16.04 LTS, Ubuntu 18.04 LTS and Ubuntu 20.04 LTS.
Original advisory details:
It was discovered that OpenSSL incorrectly handled certain certificate revocation list distribution point names. An attacker could possibly use this issue to cause OpenSSL to consume excessive memory, resulting in a denial of service. ( CVE-2026-35189 )
It was discovered that OpenSSL incorrectly implemented scalar multiplication for non-NIST elliptic curves. An attacker could possibly use this issue to perform a timing side-channel attack and obtain sensitive information. This issue only affected Ubuntu 18.04 LTS and Ubuntu 20.04 LTS. ( CVE-2026-54872 )
It was discovered that OpenSSL incorrectly implemented SM2 signature ...
USN-8847-1 fixed vulnerabilities in OpenSSL. This update provides the corresponding fix for OpenSSL on Ubuntu 14.04 LTS, Ubuntu 16.04 LTS, Ubuntu 18.04 LTS and Ubuntu 20.04 LTS. Original advisory details: It was discovered that OpenSSL incorrectly handled certain certificate revocation list distribution point names. An attacker could possibly use this issue to cause OpenSSL to consume excessive memory, resulting in a denial of service. ( CVE-2026-35189 ) It was discovered that OpenSSL incorrectly implemented scalar multiplication for non-NIST elliptic curves. An attacker could possibly use this issue to perform a timing side-channel attack and obtain sensitive information. This issue only affected Ubuntu 18.04 LTS and Ubuntu 20.04 LTS. ( CVE-2026-54872 ) It was discovered that OpenSSL incorrectly implemented SM2 signature generation. An attacker could possibly use this issue to perform a timing side-channel attack and obtain sensitive information. This issue only affected Ubuntu 18.04 LTS and Ubuntu 20.04 LTS. ( CVE-2026-77696 ) It was discovered that OpenSSL incorrectly handled DTLS retransmission of handshake messages. An attacker could possibly use this issue to cause incorrect handshake behavior or a denial of service. ( CVE-2026-84782 )
USN-8847-1 fixed vulnerabilities in OpenSSL. This update provides the corresponding fix for OpenSSL on Ubuntu 14.04 LTS, Ubuntu 16.04 LTS, Ubuntu 18.04 LTS and Ubuntu 20.04 LTS.
Original advisory details:
It was discovered that OpenSSL incorrectly handled certain certificate revocation list distribution point names. An attacker could possibly use this issue to cause OpenSSL to consume excessive memory, resulting in a denial of service. ( CVE-2026-35189 )
It was discovered that OpenSSL incorrectly implemented scalar multiplication for non-NIST elliptic curves. An attacker could possibly use this issue to perform a timing side-channel attack and obtain sensitive information. This issue only affected Ubuntu 18.04 LTS and Ubuntu 20.04 LTS. ( CVE-2026-54872 )
It was discovered that OpenSSL incorrectly implemented SM2 signature generation. An attacker could possibly use this issue to perform a timing side-channel attack and obtain sensitive information. This issue only affected Ubuntu 18.04 LTS and Ubuntu 20.04 LTS. ( CVE-2026-77696 )
It was discovered that OpenSSL incorrectly handled DTLS retransmission of handshake messages. An attacker could possibly use this issue to cause incorrect handshake behavior or a denial of service. ( CVE-2026-84782 )
After a standard system update you need to reboot your computer to make all the necessary changes.
The problem can be corrected by updating your system to the following package versions:
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