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Ubuntu Security Notice USN-5688-2

Ubuntu Security Notice 5688-2 - USN-5688-1 fixed vulnerabilities in Libksba. This update provides the corresponding update for Ubuntu 22.10. It was discovered that an integer overflow could be triggered in Libksba when decoding certain data. An attacker could use this issue to cause a denial of service or possibly execute arbitrary code.

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Ubuntu Security Notice USN-5688-2
October 26, 2022

libksba vulnerability

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

  • Ubuntu 22.10

Summary:

Libksba could be made to crash or run programs if it decoded specially
crafted data.

Software Description:

  • libksba: X.509 and CMS support library

Details:

USN-5688-1 fixed vulnerabilities in Libksba. This update provides
the corresponding update for Ubuntu 22.10.

Original advisory details:

It was discovered that an integer overflow could be triggered in Libksba
when decoding certain data. An attacker could use this issue to cause a
denial of service (application crash) or possibly execute arbitrary code.

Update instructions:

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

Ubuntu 22.10:
libksba8 1.6.0-3ubuntu1

In general, a standard system update will make all the necessary changes.

References:
https://ubuntu.com/security/notices/USN-5688-2
https://ubuntu.com/security/notices/USN-5688-1
CVE-2022-3515

Package Information:
https://launchpad.net/ubuntu/+source/libksba/1.6.0-3ubuntu1

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Ubuntu Security Notice 5688-1 - It was discovered that an integer overflow could be triggered in Libksba when decoding certain data. An attacker could use this issue to cause a denial of service or possibly execute arbitrary code.

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