CVE-2026-5121
Fixed in a distro release EPSS 1%CVSS 7.5
A flaw was found in libarchive. On 32-bit systems, an integer overflow vulnerability exists in the zisofs block pointer allocation logic. A remote attacker can exploit this by providing a specially crafted ISO9660 image, which can lead to a heap buffer overflow. This could potentially allow for arbitrary code execution on the affected system.
Products: Red Hat Enterprise Linux 7 Extended Lifecycle Support, Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 8.2 Advanced Update Support, Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support, Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On, Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support, Red Hat Enterprise Linux 8.6 Telecommunications Update Service, Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions, Red Hat Enterprise Linux 8.8 Telecommunications Update Service, Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions, Red Hat Enterprise Linux 9, Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions, Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions, Red Hat Enterprise Linux 9.4 Extended Update Support, Red Hat Enterprise Linux 9.6 Extended Update Support, Red Hat OpenShift Container Platform 4.12, Red Hat OpenShift Container Platform 4.13, Red Hat OpenShift Container Platform 4.14, Red Hat OpenShift Container Platform 4.15, Red Hat OpenShift Container Platform 4.16, Red Hat OpenShift Container Platform 4.17, Red Hat OpenShift Container Platform 4.18, Red Hat OpenShift Container Platform 4.19, Red Hat RHEL-8 based Middleware Containers, Cert Manager support for Red Hat OpenShift release 1.17, Cert Manager support for Red Hat OpenShift release 1.18, Cert Manager support for Red Hat OpenShift release 1.20, Red Hat AI Inference Server 3.2, Red Hat AI Inference Server 3.3, Red Hat Discovery 2, Red Hat Hardened Images, Red Hat Insights proxy 1.5, Red Hat Update Infrastructure 5, Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 6, Siemens SIDIS Secured SmartPlug
Distro releases
| Release | Package | Fixed in |
|---|---|---|
| AlmaLinux 8 | bsdtar | 3.3.3-7.el8_10 |
| AlmaLinux 8 | libarchive | 3.3.3-7.el8_10 |
| AlmaLinux 8 | libarchive-devel | 3.3.3-7.el8_10 |
| AlmaLinux 9 | bsdtar | 3.5.3-9.el9_7 |
| AlmaLinux 9 | libarchive | 3.5.3-9.el9_7 |
| AlmaLinux 9 | libarchive-devel | 3.5.3-9.el9_7 |
| Amazon Linux 2 | bsdcpio | 3.1.2-14.amzn2.0.6 |
| Amazon Linux 2 | bsdtar | 3.1.2-14.amzn2.0.6 |
| Amazon Linux 2 | libarchive | 3.1.2-14.amzn2.0.6 |
| Amazon Linux 2 | libarchive-devel | 3.1.2-14.amzn2.0.6 |
| Chainguard | libarchive | 3.8.7-r0 |
| Chainguard | libarchive-dev | 3.8.7-r0 |
| Chainguard | libarchive-doc | 3.8.7-r0 |
| Chainguard | libarchive-tools | 3.8.7-r0 |
| Debian 12 | libarchive | 3.6.2-1+deb12u4 |
| Debian 13 | libarchive | 3.7.4-4+deb13u1 |
| Debian 14 | libarchive | 3.8.7-1 |
| Red Hat Enterprise Linux 8 | bsdcat-debuginfo | 0:3.3.3-7.el8_10 |
| Red Hat Enterprise Linux 8 | bsdcpio-debuginfo | 0:3.3.3-7.el8_10 |
| Red Hat Enterprise Linux 8 | bsdtar | 0:3.3.3-7.el8_10 |
| Red Hat Enterprise Linux 8 | bsdtar-debuginfo | 0:3.3.3-7.el8_10 |
| Red Hat Enterprise Linux 8 | libarchive | 0:3.3.3-7.el8_10 |
| Red Hat Enterprise Linux 8 | libarchive-debuginfo | 0:3.3.3-7.el8_10 |
| Red Hat Enterprise Linux 8 | libarchive-debugsource | 0:3.3.3-7.el8_10 |
| Red Hat Enterprise Linux 8 | libarchive-devel | 0:3.3.3-7.el8_10 |
| Red Hat Enterprise Linux 9 | bsdcat-debuginfo | 0:3.5.3-9.el9_7 |
| Red Hat Enterprise Linux 9 | bsdcpio-debuginfo | 0:3.5.3-9.el9_7 |
| Red Hat Enterprise Linux 9 | bsdtar | 0:3.5.3-9.el9_7 |
| Red Hat Enterprise Linux 9 | bsdtar-debuginfo | 0:3.5.3-9.el9_7 |
| Red Hat Enterprise Linux 9 | libarchive | 0:3.5.3-9.el9_7 |
| Red Hat Enterprise Linux 9 | libarchive-debuginfo | 0:3.5.3-9.el9_7 |
| Red Hat Enterprise Linux 9 | libarchive-debugsource | 0:3.5.3-9.el9_7 |
| Red Hat Enterprise Linux 9 | libarchive-devel | 0:3.5.3-9.el9_7 |
| Red Hat hummingbird 1 | libarchive | 0:3.8.7-1.hum1 |
| Red Hat hummingbird 1 | libarchive-devel | 0:3.8.7-1.hum1 |
| Red Hat rhel aus 8.2 | bsdcat-debuginfo | 0:3.3.2-8.el8_2.2 |
| Red Hat rhel aus 8.2 | bsdcpio-debuginfo | 0:3.3.2-8.el8_2.2 |
| Red Hat rhel aus 8.2 | bsdtar | 0:3.3.2-8.el8_2.2 |
| Red Hat rhel aus 8.2 | bsdtar-debuginfo | 0:3.3.2-8.el8_2.2 |
| Red Hat rhel aus 8.2 | libarchive | 0:3.3.2-8.el8_2.2 |
| Red Hat rhel aus 8.2 | libarchive-debuginfo | 0:3.3.2-8.el8_2.2 |
| Red Hat rhel aus 8.2 | libarchive-debugsource | 0:3.3.2-8.el8_2.2 |
| Red Hat rhel aus 8.4 | bsdcat-debuginfo | 0:3.3.3-1.el8_4.2 |
| Red Hat rhel aus 8.4 | bsdcpio-debuginfo | 0:3.3.3-1.el8_4.2 |
| Red Hat rhel aus 8.4 | bsdtar | 0:3.3.3-1.el8_4.2 |
| Red Hat rhel aus 8.4 | bsdtar-debuginfo | 0:3.3.3-1.el8_4.2 |
| Red Hat rhel aus 8.4 | libarchive | 0:3.3.3-1.el8_4.2 |
| Red Hat rhel aus 8.4 | libarchive-debuginfo | 0:3.3.3-1.el8_4.2 |
| Red Hat rhel aus 8.4 | libarchive-debugsource | 0:3.3.3-1.el8_4.2 |
| Red Hat rhel aus 8.6 | bsdcat-debuginfo | 0:3.3.3-6.el8_6.1 |
| Red Hat rhel aus 8.6 | bsdcpio-debuginfo | 0:3.3.3-6.el8_6.1 |
| Red Hat rhel aus 8.6 | bsdtar | 0:3.3.3-6.el8_6.1 |
| Red Hat rhel aus 8.6 | bsdtar-debuginfo | 0:3.3.3-6.el8_6.1 |
| Red Hat rhel aus 8.6 | libarchive | 0:3.3.3-6.el8_6.1 |
| Red Hat rhel aus 8.6 | libarchive-debuginfo | 0:3.3.3-6.el8_6.1 |
| Red Hat rhel aus 8.6 | libarchive-debugsource | 0:3.3.3-6.el8_6.1 |
| Red Hat rhel e4s 8.6 | bsdcat-debuginfo | 0:3.3.3-6.el8_6.1 |
| Red Hat rhel e4s 8.6 | bsdcpio-debuginfo | 0:3.3.3-6.el8_6.1 |
| Red Hat rhel e4s 8.6 | bsdtar | 0:3.3.3-6.el8_6.1 |
| Red Hat rhel e4s 8.6 | bsdtar-debuginfo | 0:3.3.3-6.el8_6.1 |
| Red Hat rhel e4s 8.6 | libarchive | 0:3.3.3-6.el8_6.1 |
| Red Hat rhel e4s 8.6 | libarchive-debuginfo | 0:3.3.3-6.el8_6.1 |
| Red Hat rhel e4s 8.6 | libarchive-debugsource | 0:3.3.3-6.el8_6.1 |
| Red Hat rhel e4s 8.8 | bsdcat-debuginfo | 0:3.3.3-5.el8_8.2 |
| Red Hat rhel e4s 8.8 | bsdcpio-debuginfo | 0:3.3.3-5.el8_8.2 |
| Red Hat rhel e4s 8.8 | bsdtar | 0:3.3.3-5.el8_8.2 |
| Red Hat rhel e4s 8.8 | bsdtar-debuginfo | 0:3.3.3-5.el8_8.2 |
| Red Hat rhel e4s 8.8 | libarchive | 0:3.3.3-5.el8_8.2 |
| Red Hat rhel e4s 8.8 | libarchive-debuginfo | 0:3.3.3-5.el8_8.2 |
| Red Hat rhel e4s 8.8 | libarchive-debugsource | 0:3.3.3-5.el8_8.2 |
| Red Hat rhel e4s 9.0 | bsdcat-debuginfo | 0:3.5.3-2.el9_0.4 |
| Red Hat rhel e4s 9.0 | bsdcpio-debuginfo | 0:3.5.3-2.el9_0.4 |
| Red Hat rhel e4s 9.0 | bsdtar | 0:3.5.3-2.el9_0.4 |
| Red Hat rhel e4s 9.0 | bsdtar-debuginfo | 0:3.5.3-2.el9_0.4 |
| Red Hat rhel e4s 9.0 | libarchive | 0:3.5.3-2.el9_0.4 |
| Red Hat rhel e4s 9.0 | libarchive-debuginfo | 0:3.5.3-2.el9_0.4 |
| Red Hat rhel e4s 9.0 | libarchive-debugsource | 0:3.5.3-2.el9_0.4 |
| Red Hat rhel e4s 9.2 | bsdcat-debuginfo | 0:3.5.3-5.el9_2.2 |
| Red Hat rhel e4s 9.2 | bsdcpio-debuginfo | 0:3.5.3-5.el9_2.2 |
| Red Hat rhel e4s 9.2 | bsdtar | 0:3.5.3-5.el9_2.2 |
| Red Hat rhel e4s 9.2 | bsdtar-debuginfo | 0:3.5.3-5.el9_2.2 |
| Red Hat rhel e4s 9.2 | libarchive | 0:3.5.3-5.el9_2.2 |
| Red Hat rhel e4s 9.2 | libarchive-debuginfo | 0:3.5.3-5.el9_2.2 |
| Red Hat rhel e4s 9.2 | libarchive-debugsource | 0:3.5.3-5.el9_2.2 |
| Red Hat rhel els 7 | bsdcpio | 0:3.1.2-14.el7_9.2 |
| Red Hat rhel els 7 | bsdtar | 0:3.1.2-14.el7_9.2 |
| Red Hat rhel els 7 | libarchive | 0:3.1.2-14.el7_9.2 |
| Red Hat rhel els 7 | libarchive-debuginfo | 0:3.1.2-14.el7_9.2 |
| Red Hat rhel els 7 | libarchive-devel | 0:3.1.2-14.el7_9.2 |
| Red Hat rhel eus 9.4 | bsdcat-debuginfo | 0:3.5.3-5.el9_4 |
| Red Hat rhel eus 9.4 | bsdcpio-debuginfo | 0:3.5.3-5.el9_4 |
| Red Hat rhel eus 9.4 | bsdtar | 0:3.5.3-5.el9_4 |
| Red Hat rhel eus 9.4 | bsdtar-debuginfo | 0:3.5.3-5.el9_4 |
| Red Hat rhel eus 9.4 | libarchive | 0:3.5.3-5.el9_4 |
| Red Hat rhel eus 9.4 | libarchive-debuginfo | 0:3.5.3-5.el9_4 |
| Red Hat rhel eus 9.4 | libarchive-debugsource | 0:3.5.3-5.el9_4 |
| Red Hat rhel eus 9.4 | libarchive-devel | 0:3.5.3-5.el9_4 |
| Red Hat rhel eus 9.6 | bsdcat-debuginfo | 0:3.5.3-7.el9_6.1 |
| Red Hat rhel eus 9.6 | bsdcpio-debuginfo | 0:3.5.3-7.el9_6.1 |
| Red Hat rhel eus 9.6 | bsdtar | 0:3.5.3-7.el9_6.1 |
| Red Hat rhel eus 9.6 | bsdtar-debuginfo | 0:3.5.3-7.el9_6.1 |
| Red Hat rhel eus 9.6 | libarchive | 0:3.5.3-7.el9_6.1 |
| Red Hat rhel eus 9.6 | libarchive-debuginfo | 0:3.5.3-7.el9_6.1 |
| Red Hat rhel eus 9.6 | libarchive-debugsource | 0:3.5.3-7.el9_6.1 |
| Red Hat rhel eus 9.6 | libarchive-devel | 0:3.5.3-7.el9_6.1 |
| Red Hat rhel eus long life 8.4 | bsdcat-debuginfo | 0:3.3.3-1.el8_4.2 |
| Red Hat rhel eus long life 8.4 | bsdcpio-debuginfo | 0:3.3.3-1.el8_4.2 |
| Red Hat rhel eus long life 8.4 | bsdtar | 0:3.3.3-1.el8_4.2 |
| Red Hat rhel eus long life 8.4 | bsdtar-debuginfo | 0:3.3.3-1.el8_4.2 |
| Red Hat rhel eus long life 8.4 | libarchive | 0:3.3.3-1.el8_4.2 |
| Red Hat rhel eus long life 8.4 | libarchive-debuginfo | 0:3.3.3-1.el8_4.2 |
| Red Hat rhel eus long life 8.4 | libarchive-debugsource | 0:3.3.3-1.el8_4.2 |
| Red Hat rhel tus 8.6 | bsdcat-debuginfo | 0:3.3.3-6.el8_6.1 |
| Red Hat rhel tus 8.6 | bsdcpio-debuginfo | 0:3.3.3-6.el8_6.1 |
| Red Hat rhel tus 8.6 | bsdtar | 0:3.3.3-6.el8_6.1 |
| Red Hat rhel tus 8.6 | bsdtar-debuginfo | 0:3.3.3-6.el8_6.1 |
| Red Hat rhel tus 8.6 | libarchive | 0:3.3.3-6.el8_6.1 |
| Red Hat rhel tus 8.6 | libarchive-debuginfo | 0:3.3.3-6.el8_6.1 |
| Red Hat rhel tus 8.6 | libarchive-debugsource | 0:3.3.3-6.el8_6.1 |
| Red Hat rhel tus 8.8 | bsdcat-debuginfo | 0:3.3.3-5.el8_8.2 |
| Red Hat rhel tus 8.8 | bsdcpio-debuginfo | 0:3.3.3-5.el8_8.2 |
| Red Hat rhel tus 8.8 | bsdtar | 0:3.3.3-5.el8_8.2 |
| Red Hat rhel tus 8.8 | bsdtar-debuginfo | 0:3.3.3-5.el8_8.2 |
| Red Hat rhel tus 8.8 | libarchive | 0:3.3.3-5.el8_8.2 |
| Red Hat rhel tus 8.8 | libarchive-debuginfo | 0:3.3.3-5.el8_8.2 |
| Red Hat rhel tus 8.8 | libarchive-debugsource | 0:3.3.3-5.el8_8.2 |
| Rocky Linux 8 | libarchive | 0:3.3.3-7.el8_10 |
| Rocky Linux 9 | libarchive | 0:3.5.3-9.el9_7 |
| SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS | libarchive | 3.5.1-150400.3.24.1 |
| SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS | libarchive | 3.5.1-150400.3.24.1 |
| SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS | libarchive | 3.5.1-150400.3.24.1 |
| SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS | libarchive | 3.5.1-150400.3.24.1 |
| SUSE Linux Enterprise Micro 5.3 | libarchive | 3.5.1-150400.3.24.1 |
| SUSE Linux Enterprise Micro 5.4 | libarchive | 3.5.1-150400.3.24.1 |
| SUSE Linux Enterprise Micro 5.5 | libarchive | 3.5.1-150400.3.24.1 |
| SUSE Linux Enterprise Module for Basesystem 15 SP7 | libarchive | 3.7.2-150600.3.20.1 |
| SUSE Linux Enterprise Module for Development Tools 15 SP7 | libarchive | 3.7.2-150600.3.20.1 |
| SUSE Linux Enterprise Server 12 SP5-LTSS | libarchive | 3.3.3-32.17.1 |
| SUSE Linux Enterprise Server 15 SP4-LTSS | libarchive | 3.5.1-150400.3.24.1 |
| SUSE Linux Enterprise Server 15 SP5-LTSS | libarchive | 3.5.1-150400.3.24.1 |
| SUSE Linux Enterprise Server 15 SP6-LTSS | libarchive | 3.7.2-150600.3.20.1 |
| SUSE Linux Enterprise Server LTSS Extended Security 12 SP5 | libarchive | 3.3.3-32.17.1 |
| SUSE Linux Enterprise Server for SAP Applications 15 SP4 | libarchive | 3.5.1-150400.3.24.1 |
| SUSE Linux Enterprise Server for SAP Applications 15 SP5 | libarchive | 3.5.1-150400.3.24.1 |
| SUSE Linux Enterprise Server for SAP Applications 15 SP6 | libarchive | 3.7.2-150600.3.20.1 |
| SUSE Linux Micro 6.0 | libarchive | 3.6.2-6.1 |
| SUSE Linux Micro 6.1 | libarchive | 3.7.4-slfo.1.1_4.1 |
| Ubuntu 22.04 LTS | libarchive | 3.6.0-1ubuntu1.7 |
| Ubuntu 24.04 LTS | libarchive | 3.7.2-2ubuntu0.7 |
| Ubuntu 25.10 | libarchive | 3.7.7-0ubuntu3.2 |
| Ubuntu 26.04 LTS | libarchive | 3.8.5-1ubuntu2.1 |
| Ubuntu Pro 14.04 LTS | libarchive | 3.1.2-7ubuntu2.8+esm5 |
| Ubuntu Pro 16.04 LTS | libarchive | 3.1.2-11ubuntu0.16.04.8+esm3 |
| Ubuntu Pro 18.04 LTS | libarchive | 3.2.2-3.1ubuntu0.7+esm3 |
| Ubuntu Pro 20.04 LTS | libarchive | 3.4.0-2ubuntu1.5+esm2 |
| Wolfi | libarchive | 3.8.7-r0 |
| Wolfi | libarchive-dev | 3.8.7-r0 |
| Wolfi | libarchive-doc | 3.8.7-r0 |
| Wolfi | libarchive-tools | 3.8.7-r0 |