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Ubuntu 24.10 USN-7586-1 critical: botan denial of service

ubuntu
Calendar Grey June 23, 2025
Dist Ubuntu Esm H88
Several security updates in Botan for Ubuntu versions 22.04 through 24.10 target denial of service vulnerabilities and additional concerns.
Several security issues were fixed in Botan.

Summary

Several security issues were fixed in Botan.

Software Description:

- botan: C++ cryptography library

Details:

It was discovered that Botan could have compiler dependent operations

induced under certain circumstances. An attacker could possibly use this

issue to cause undefined behavior. (CVE-2024-50382, CVE-2024-50383)

Bing Shi discovered that Botan did not limit the size of certain inputs

when checking primality and name constraints. An attacker could possibly

use this issue to cause a denial of service. (CVE-2024-34702,

CVE-2024-34703)

It was discovered that Botan did not correctly handle conflicting name

constraints. An attacker could possibly use this issue to bypass

authentication. (CVE-2024-39312)

Topics%20covered

Topics Covered

security advisory denial of service security issue critical ubuntu botan

Update Instructions

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

Ubuntu 24.10
  botan                           2.19.3+dfsg-1ubuntu2.1
  libbotan-2-19                   2.19.3+dfsg-1ubuntu2.1
  libbotan-2-dev                  2.19.3+dfsg-1ubuntu2.1
  python3-botan                   2.19.3+dfsg-1ubuntu2.1

Ubuntu 24.04 LTS
  botan                           2.19.3+dfsg-1ubuntu2+esm1
                                  Available with Ubuntu Pro
  libbotan-2-19                   2.19.3+dfsg-1ubuntu2+esm1
                                  Available with Ubuntu Pro
  libbotan-2-dev                  2.19.3+dfsg-1ubuntu2+esm1
                                  Available with Ubuntu Pro
  python3-botan                   2.19.3+dfsg-1ubuntu2+esm1
                                  Available with Ubuntu Pro

Ubuntu 22.04 LTS
  botan                           2.19.1+dfsg-2ubuntu1+esm1
                                  Available with Ubuntu Pro
  libbotan-2-19                   2.19.1+dfsg-2ubuntu1+esm1
                                  Available with Ubuntu Pro
  libbotan-2-dev                  2.19.1+dfsg-2ubuntu1+esm1
                                  Available with Ubuntu Pro
  python3-botan                   2.19.1+dfsg-2ubuntu1+esm1
                                  Available with Ubuntu Pro

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

References

https://ubuntu.com/security/notices/USN-7586-1

CVE-2024-34702, CVE-2024-34703, CVE-2024-39312, CVE-2024-50382,

CVE-2024-50383

Severity
critical
Lowest
Low
Medium
High
Critical

Ubuntu Security Notice USN-7586-1

Topics%20covered

Topics Covered

security advisory denial of service security issue critical ubuntu botan

Package Information

https://launchpad.net/ubuntu/+source/botan/2.19.3+dfsg-1ubuntu2.1

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