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Ubuntu Security Notice USN-5845-2 ≈ Mobile Hacker For Hire

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Ubuntu Security Notice USN-5845-2
February 07, 2023

openssl vulnerabilities

A security issue affects these releases of Ubuntu and its derivatives:

– Ubuntu 16.04 ESM
– Ubuntu 14.04 ESM


Several security issues were fixed in OpenSSL.

Software Description:
– openssl: Secure Socket Layer (SSL) cryptographic library and tools


USN-5845-1 fixed several vulnerabilities in OpenSSL. This update provides
the corresponding update for Ubuntu 14.04 ESM and Ubuntu 16.04 ESM.

Original advisory details:

David Benjamin discovered that OpenSSL incorrectly handled X.400 address
processing. A remote attacker could possibly use this issue to read
arbitrary memory contents or cause OpenSSL to crash, resulting in a denial
of service. (CVE-2023-0286)

Octavio Galland and Marcel Böhme discovered that OpenSSL incorrectly
handled streaming ASN.1 data. A remote attacker could use this issue to
cause OpenSSL to crash, resulting in a denial of service, or possibly
execute arbitrary code. (CVE-2023-0215)

Update instructions:

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

Ubuntu 16.04 ESM:
libssl1.0.0 1.0.2g-1ubuntu4.20+esm6

Ubuntu 14.04 ESM:
libssl1.0.0 1.0.1f-1ubuntu2.27+esm6

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

CVE-2023-0215, CVE-2023-0286

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