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
Linux kernel
debian/linux
5.10.223-1
5.10.226-1
6.1.123-1
6.1.128-1
6.12.12-1
6.12.13-1
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 GNU/Linux=8.0
Debian GNU/Linux=9.0
Debian GNU/Linux=10.0
Fedoraproject Fedora=29
Ubuntu Linux=16.04
Ubuntu Linux=18.04
Ubuntu Linux=19.04
Red Hat Enterprise Linux=7.0
Red Hat Enterprise Linux=8.0
redhat enterprise Linux for arm 64=7.0_aarch64
redhat enterprise Linux for ibm z systems=7.0_s390x
redhat enterprise Linux for real time=8
redhat enterprise Linux for real time for nfv=8.0
redhat enterprise Linux for real time for nfv tus=8.2
redhat enterprise Linux for real time for nfv tus=8.4
redhat enterprise Linux for real time for nfv tus=8.6
redhat enterprise Linux for real time for nfv tus=8.8
redhat enterprise Linux for real time tus=8.2
redhat enterprise Linux for real time tus=8.4
redhat enterprise Linux for real time tus=8.6
redhat enterprise Linux for real time tus=8.8
All of
NetApp AFF A700s Firmware
NetApp AFF A700s Firmware
All of
netapp h410c firmware
netapp h410c
All of
netapp h610s firmware
netapp h610s
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 hci management node
NetApp Service Processor
netapp solidfire
NetApp SteelStore
netapp hci compute node
Debian=8.0
Debian=9.0
Debian=10.0
Fedora=29
Ubuntu=16.04
Ubuntu=18.04
Ubuntu=19.04
Ubuntu=18.04
NetApp AFF A700s Firmware
NetApp AFF A700s Firmware
netapp h410c firmware
netapp h410c
netapp h610s firmware
netapp h610s

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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