Exploited
high
7.8
CWE
269 271
Advisory Published
CVE Published
Updated

CVE-2019-13272: Linux Kernel Improper Privilege Management Vulnerability

First published: Tue Jul 16 2019(Updated: )

A flaw in the kernels implementation of ptrace which could inadvertantly grant elevated permissions to an attacker who could abuse the relationship between tracer and the process being traced. The mechanism used to link the process requesting the ptrace and the process being ptraced could allow a local user to obtain root level priviledges by creating an opportunity to abuse the frequently used pattern of dropping privileges and then execve a child with reduced privileges/permissions. References: <a href="https://bugs.chromium.org/p/project-zero/issues/detail?id=1903">https://bugs.chromium.org/p/project-zero/issues/detail?id=1903</a> <a href="https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.1.17">https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.1.17</a> <a href="https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=6994eefb0053799d2e07cd140df6c2ea106c41ee">https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=6994eefb0053799d2e07cd140df6c2ea106c41ee</a> <a href="https://github.com/torvalds/linux/commit/6994eefb0053799d2e07cd140df6c2ea106c41ee">https://github.com/torvalds/linux/commit/6994eefb0053799d2e07cd140df6c2ea106c41ee</a>

Credit: cve@mitre.org cve@mitre.org cve@mitre.org

Affected SoftwareAffected VersionHow to fix
redhat/kernel-alt<0:4.14.0-115.12.1.el7a
0:4.14.0-115.12.1.el7a
redhat/kernel-rt<0:4.18.0-80.7.2.rt9.154.el8_0
0:4.18.0-80.7.2.rt9.154.el8_0
redhat/kernel<0:4.18.0-80.7.2.el8_0
0:4.18.0-80.7.2.el8_0
redhat/kernel<5.1.17
5.1.17
Red Hat Kernel-devel
Linux Kernel>=3.16.52<3.16.71
Linux Kernel>=4.1.39<4.2
Linux Kernel>=4.4.40<4.4.185
Linux Kernel>=4.8.16<4.9
Linux Kernel>=4.9.1<4.9.185
Linux Kernel>=4.10<4.14.133
Linux Kernel>=4.15<4.19.58
Linux Kernel>=4.20<5.1.17
Debian Linux=8.0
Debian Linux=9.0
Debian Linux=10.0
Red Hat Fedora=29
Ubuntu=16.04
Ubuntu=18.04
Ubuntu=19.04
Red Hat Enterprise Linux=7.0
Red Hat Enterprise Linux=8.0
Red Hat Enterprise Linux for Real Time=8
NetApp A700 Firmware
NetApp AFF A700s Firmware
NetApp H410C
NetApp H410C Firmware
NetApp HCI H610S Firmware
NetApp H610S Firmware
NetApp Active IQ Unified Manager for VMware vSphere
NetApp E-Series Performance Analyzer
NetApp E-Series SANtricity OS Controller>=11.0.0<=11.60.3
NetApp SolidFire & HCI Management Node
NetApp Service Processor
NetApp SolidFire & HCI Storage Node
NetApp SteelStore Cloud Integrated Storage
NetApp HCI Compute Node
Ubuntu=18.04
Red Hat Enterprise Linux=7.0_aarch64
Red Hat Enterprise Linux for IBM Z Systems=7.0_s390x
Red Hat Enterprise Linux for Real Time for NFV=8.0
Red Hat Enterprise Linux for Real Time for NFV=8.2
Red Hat Enterprise Linux for Real Time for NFV=8.4
Red Hat Enterprise Linux for Real Time for NFV=8.6
Red Hat Enterprise Linux for Real Time for NFV=8.8
Red Hat Enterprise Linux for Real Time=8.2
Red Hat Enterprise Linux for Real Time=8.4
Red Hat Enterprise Linux for Real Time=8.6
Red Hat Enterprise Linux for Real Time=8.8
All of
NetApp A700 Firmware
NetApp AFF A700s Firmware
All of
NetApp H410C
NetApp H410C Firmware
All of
NetApp HCI H610S Firmware
NetApp H610S Firmware
debian/linux
5.10.223-1
5.10.234-1
6.1.129-1
6.1.128-1
6.12.20-1
6.12.21-1

Remedy

For mitigation, please refer to the Red Hat Knowledgebase article: https://access.redhat.com/articles/4292201

Remedy

https://bugs.chromium.org/p/project-zero/issues/detail?id=1903

Remedy

https://bugzilla.redhat.com/show_bug.cgi?id=1730895

Remedy

https://bugzilla.suse.com/show_bug.cgi?id=1140671

Remedy

https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.1.17

Remedy

https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=6994eefb0053799d2e07cd140df6c2ea106c41ee

Remedy

https://github.com/torvalds/linux/commit/6994eefb0053799d2e07cd140df6c2ea106c41ee

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Reference Links

Parent vulnerabilities

(Appears in the following advisories)

Frequently Asked Questions

  • What is the severity of CVE-2019-13272?

    CVE-2019-13272 is classified with medium severity due to its potential to grant elevated permissions to attackers.

  • How do I fix CVE-2019-13272?

    To mitigate CVE-2019-13272, it is recommended to update the kernel to versions 5.1.17 or later, or the specific versions 0:4.14.0-115.12.1.el7a and 0:4.18.0-80.7.2.el8_0.

  • Which systems are affected by CVE-2019-13272?

    CVE-2019-13272 affects various Linux kernel versions including RHEL, Ubuntu, Debian, and Fedora releases as detailed in the vulnerability report.

  • What is the exploit vector for CVE-2019-13272?

    The exploit vector for CVE-2019-13272 involves a flaw in the ptrace implementation that can be abused by a malicious process observing another process.

  • Is there an official patch for CVE-2019-13272?

    Yes, official patches addressing CVE-2019-13272 have been released and are included in the latest kernel updates.

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