Packages
- libarchive - Library to read/write archive files
Details
It was discovered that libarchive incorrectly handled certain RAR
archives. An attacker could possibly use this issue to cause an
out-of-bounds read via a crafted RAR archive, leading to sensitive
memory disclosure. (CVE-2026-4424)
It was discovered that libarchive incorrectly handled certain ISO files.
An attacker could possibly use this issue to cause incorrect memory
allocation via a crafted ISO file, leading to a denial of service.
(CVE-2026-4426)
It was discovered that libarchive incorrectly handled block pointer
allocation in zisofs on 32-bit systems. An attacker could possibly use
this issue to cause a heap buffer overflow via a crafted ISO9660 image,
possibly leading to arbitrary code execution. (CVE-2026-5121)
It was discovered that libarchive incorrectly handled certain RAR
archives. An attacker could possibly use this issue to cause an
out-of-bounds read via a crafted RAR archive, leading to sensitive
memory disclosure. (CVE-2026-4424)
It was discovered that libarchive incorrectly handled certain ISO files.
An attacker could possibly use this issue to cause incorrect memory
allocation via a crafted ISO file, leading to a denial of service.
(CVE-2026-4426)
It was discovered that libarchive incorrectly handled block pointer
allocation in zisofs on 32-bit systems. An attacker could possibly use
this issue to cause a heap buffer overflow via a crafted ISO9660 image,
possibly leading to arbitrary code execution. (CVE-2026-5121)
Update instructions
In general, a standard system update will make all the necessary changes.
Learn more about how to get the fixes.The problem can be corrected by updating your system to the following package versions:
| Ubuntu Release | Package Version | ||
|---|---|---|---|
| 26.04 LTS resolute | libarchive-dev – 3.8.5-1ubuntu2.1 | ||
| libarchive-tools – 3.8.5-1ubuntu2.1 | |||
| libarchive13t64 – 3.8.5-1ubuntu2.1 | |||
| 25.10 questing | libarchive-dev – 3.7.7-0ubuntu3.2 | ||
| libarchive-tools – 3.7.7-0ubuntu3.2 | |||
| libarchive13t64 – 3.7.7-0ubuntu3.2 | |||
| 24.04 LTS noble | libarchive-dev – 3.7.2-2ubuntu0.7 | ||
| libarchive-tools – 3.7.2-2ubuntu0.7 | |||
| libarchive13t64 – 3.7.2-2ubuntu0.7 | |||
| 22.04 LTS jammy | libarchive-dev – 3.6.0-1ubuntu1.7 | ||
| libarchive-tools – 3.6.0-1ubuntu1.7 | |||
| libarchive13 – 3.6.0-1ubuntu1.7 | |||
| 20.04 LTS focal | libarchive-dev – 3.4.0-2ubuntu1.5+esm2 | ||
| libarchive-tools – 3.4.0-2ubuntu1.5+esm2 | |||
| libarchive13 – 3.4.0-2ubuntu1.5+esm2 | |||
| 18.04 LTS bionic | bsdcpio – 3.2.2-3.1ubuntu0.7+esm3 | ||
| bsdtar – 3.2.2-3.1ubuntu0.7+esm3 | |||
| libarchive-dev – 3.2.2-3.1ubuntu0.7+esm3 | |||
| libarchive-tools – 3.2.2-3.1ubuntu0.7+esm3 | |||
| libarchive13 – 3.2.2-3.1ubuntu0.7+esm3 | |||
| 16.04 LTS xenial | bsdcpio – 3.1.2-11ubuntu0.16.04.8+esm3 | ||
| bsdtar – 3.1.2-11ubuntu0.16.04.8+esm3 | |||
| libarchive-dev – 3.1.2-11ubuntu0.16.04.8+esm3 | |||
| libarchive13 – 3.1.2-11ubuntu0.16.04.8+esm3 | |||
| 14.04 LTS trusty | bsdcpio – 3.1.2-7ubuntu2.8+esm5 | ||
| bsdtar – 3.1.2-7ubuntu2.8+esm5 | |||
| libarchive-dev – 3.1.2-7ubuntu2.8+esm5 | |||
| libarchive13 – 3.1.2-7ubuntu2.8+esm5 | |||
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