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Ubuntu 25.10 libarchive Important Denial of Service Risks USN-8147-1

ubuntu
Calendar Grey April 6, 2026
Dist Ubuntu Esm H88
Several security issues identified in libarchive across multiple Ubuntu releases, including important patches for denial of service.
Several security issues were fixed in libarchive.

Summary

Several security issues were fixed in libarchive.

Software Description:

- libarchive: Library to read/write archive files

Details:

It was discovered that libarchive incorrectly handled certain archive

files. An attacker could possibly use this issue to access sensitive

information. This issue only affected Ubuntu 14.04 LTS. (CVE-2019-19221)

It was discovered that libarchive incorrectly handled certain RAR archive

files. If a user or automated system were tricked into processing a

specially crafted RAR archive, an attacker could possibly use this issue to

cause libarchive to crash, resulting in a denial of service, or execute

arbitrary code. This issue only affected Ubuntu 14.04 LTS, Ubuntu 16.04 LTS

and Ubuntu 18.04 LTS. (CVE-2024-20696)

It was discovered that libarchive incorrectly handled certain RAR archive

files. An attacker could possibly use this issue to execute arbitrary code

or cause a denial of service. This issue only affected Ubuntu 14.04 LTS,

Ubuntu 16.04 LTS, Ubu...

Read the Full Advisory

Topics%20covered

Topics Covered

security advisory denial of service arbitrary code execution Ubuntu important libarchive

Update Instructions

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

Ubuntu 25.10
  libarchive-dev                  3.7.7-0ubuntu3.1
  libarchive-tools                3.7.7-0ubuntu3.1
  libarchive13t64                 3.7.7-0ubuntu3.1

Ubuntu 24.04 LTS
  libarchive-dev                  3.7.2-2ubuntu0.6
  libarchive-tools                3.7.2-2ubuntu0.6
  libarchive13t64                 3.7.2-2ubuntu0.6

Ubuntu 22.04 LTS
  libarchive-dev                  3.6.0-1ubuntu1.6
  libarchive-tools                3.6.0-1ubuntu1.6
  libarchive13                    3.6.0-1ubuntu1.6

Ubuntu 20.04 LTS
  libarchive-dev                  3.4.0-2ubuntu1.5+esm1
                                  Available with Ubuntu Pro
  libarchive-tools                3.4.0-2ubuntu1.5+esm1
                                  Available with Ubuntu Pro
  libarchive13                    3.4.0-2ubuntu1.5+esm1
                                  Available with Ubuntu Pro

Ubuntu 18.04 LTS
  bsdcpio                         3.2.2-3.1ubuntu0.7+esm2
                                  Available with Ubuntu Pro
  bsdtar                          3.2.2-3.1ubuntu0.7+esm2
                                  Available with Ubuntu Pro
  libarchive-dev                  3.2.2-3.1ubuntu0.7+esm2
                                  Available with Ubuntu Pro
  libarchive-tools                3.2.2-3.1ubuntu0.7+esm2
                                  Available with Ubuntu Pro
  libarchive13                    3.2.2-3.1ubuntu0.7+esm2
                                  Available with Ubuntu Pro

Ubuntu 16.04 LTS
  bsdcpio                         3.1.2-11ubuntu0.16.04.8+esm2
                                  Available with Ubuntu Pro
  bsdtar                          3.1.2-11ubuntu0.16.04.8+esm2
                                  Available with Ubuntu Pro
  libarchive-dev                  3.1.2-11ubuntu0.16.04.8+esm2
                                  Available with Ubuntu Pro
  libarchive13                    3.1.2-11ubuntu0.16.04.8+esm2
                                  Available with Ubuntu Pro

Ubuntu 14.04 LTS
  bsdcpio                         3.1.2-7ubuntu2.8+esm4
                                  Available with Ubuntu Pro
  bsdtar                          3.1.2-7ubuntu2.8+esm4
                                  Available with Ubuntu Pro
  libarchive-dev                  3.1.2-7ubuntu2.8+esm4
                                  Available with Ubuntu Pro
  libarchive13                    3.1.2-7ubuntu2.8+esm4
                                  Available with Ubuntu Pro

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

References

https://ubuntu.com/security/notices/USN-8147-1

CVE-2019-19221, CVE-2024-20696, CVE-2025-25724, CVE-2025-5914,

CVE-2025-5916, CVE-2025-5917, CVE-2025-5918, CVE-2025-60753,

CVE-2026-4111

Severity
important
Lowest
Low
Medium
High
Critical

Ubuntu Security Notice USN-8147-1

Topics%20covered

Topics Covered

security advisory denial of service arbitrary code execution Ubuntu important libarchive

Package Information

https://launchpad.net/ubuntu/+source/libarchive/3.7.7-0ubuntu3.1
https://launchpad.net/ubuntu/+source/libarchive/3.7.2-2ubuntu0.6
https://launchpad.net/ubuntu/+source/libarchive/3.6.0-1ubuntu1.6

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