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USN-7018-1: OpenSSL vulnerabilities

18 September 2024

Several security issues were fixed in OpenSSL.

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Releases

Packages

  • openssl - Secure Socket Layer (SSL) cryptographic library and tools

Details

Robert Merget, Marcus Brinkmann, Nimrod Aviram, and Juraj Somorovsky
discovered that certain Diffie-Hellman ciphersuites in the TLS
specification and implemented by OpenSSL contained a flaw. A remote
attacker could possibly use this issue to eavesdrop on encrypted
communications. This was fixed in this update by removing the insecure
ciphersuites from OpenSSL. (CVE-2020-1968)

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.
(CVE-2021-23840)

Elison Niven discovered that OpenSSL incorrectly handled the c_rehash
script. A local attacker could possibly use this issue to execute arbitrary
commands when c_rehash is run. (CVE-2022-1292)

Chancen and Daniel Fiala discovered that OpenSSL incorrectly handled the
c_rehash script. A local attacker could possibly use this issue to execute
arbitrary commands when c_rehash is run. (CVE-2022-2068)

It was discovered that OpenSSL incorrectly handled excessively large
Diffie-Hellman parameters. An attacker could possibly use this issue
to cause a denial of service. (CVE-2023-3446)

Bahaa Naamneh discovered that OpenSSL incorrectly handled certain malformed
PKCS12 files. A remote attacker could possibly use this issue to cause
OpenSSL to crash, resulting in a denial of service. (CVE-2024-0727)

Reduce your security exposure

Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and Universe repositories, and it is free for up to five machines.

Learn more about Ubuntu Pro

Update instructions

The problem can be corrected by updating your system to the following package versions:

Ubuntu 14.04

After a standard system update you need to reboot your computer to make
all the necessary changes.

Related notices

  • USN-6622-1: libssl1.1, openssl, libssl-doc, libssl-dev, libssl3
  • USN-6632-1: libssl1.1, libssl1.0.0, openssl, libssl-dev, libssl-doc
  • USN-6709-1: openssl1.0, libssl1.0.0, libssl1.0-dev
  • USN-5488-1: libssl1.1, openssl1.0, libssl3, libssl1.0.0, openssl, libssl-dev, libssl1.0-dev, libssl-doc
  • USN-5488-2: libssl1.0.0, libssl-doc, libssl-dev, openssl
  • USN-6457-1: nodejs, libnode-dev, nodejs-doc, libnode72
  • USN-4738-1: libssl1.1-udeb, libcrypto1.1-udeb, libssl1.1, openssl1.0, libcrypto1.0.0-udeb, libssl1.0.0-udeb, libssl1.0.0, openssl, libssl-dev, libssl1.0-dev, libssl-doc
  • USN-5088-1: edk2, ovmf, qemu-efi-aarch64, ovmf-ia32, qemu-efi-arm, qemu-efi
  • USN-5402-1: libssl1.1, openssl1.0, libssl3, libssl1.0.0, openssl, libssl-dev, libssl1.0-dev, libssl-doc
  • USN-5402-2: libssl1.0.0, libssl-doc, libssl-dev, openssl
  • USN-7060-1: edk2, ovmf, qemu-efi-aarch64, ovmf-ia32, qemu-efi-arm, qemu-efi
  • USN-4504-1: openssl1.0, libcrypto1.0.0-udeb, libssl1.0.0-udeb, libssl1.0.0, openssl, libssl-dev, libssl1.0-dev, libssl-doc
  • USN-6435-1: libssl1.1, libssl1.0.0, openssl, libssl-dev, libssl-doc
  • USN-6450-1: libssl3, libssl-doc, libssl-dev, openssl
  • USN-6435-2: libssl-doc, libssl1.1, libssl-dev, openssl