CVE-2019-13272
Scores
EPSS
Percentile: 80.6%
CVSS
CVSS Score: 7.8/10
All CVSS Scores
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
Vector Breakdown
CVSS (Common Vulnerability Scoring System) vector provides detailed metrics about vulnerability characteristics
CVSS
Attack Vector
Local (L)
Describes how the vulnerability is exploited
Attack Complexity
High (H)
Describes the conditions beyond the attacker's control
Privileges Required
Low (L)
Describes the level of privileges an attacker must possess
User Interaction
None (N)
Captures the requirement for a human user participation
Scope
Changed (C)
Determines if a successful attack impacts components beyond the vulnerable component
Confidentiality Impact
High (H)
Measures the impact to the confidentiality of information
Integrity Impact
High (H)
Measures the impact to integrity of a successfully exploited vulnerability
Availability Impact
High (H)
Measures the impact to the availability of the impacted component
Vector: AV:L/AC:L/Au:N/C:C/I:C/A:C
Vector Breakdown
CVSS (Common Vulnerability Scoring System) vector provides detailed metrics about vulnerability characteristics
CVSS
Attack Vector
Local (L)
Describes how the vulnerability is exploited
Attack Complexity
Low (L)
Describes the conditions beyond the attacker's control
Authentication
None (N)
Describes the level of privileges an attacker must possess
Confidentiality Impact
Complete
Measures the impact to the confidentiality of information
Integrity Impact
Complete
Measures the impact to integrity of a successfully exploited vulnerability
Availability Impact
Complete
Measures the impact to the availability of the impacted component
Description
In the Linux kernel before 5.1.17, ptrace_link in kernel/ptrace.c mishandles the recording of the credentials of a process that wants to create a ptrace relationship, which allows local users to obtain root access by leveraging certain scenarios with a parent-child process relationship, where a parent drops privileges and calls execve (potentially allowing control by an attacker). One contributing factor is an object lifetime issue (which can also cause a panic). Another contributing factor is incorrect marking of a ptrace relationship as privileged, which is exploitable through (for example) Polkit’s pkexec helper with PTRACE_TRACEME. NOTE: SELinux deny_ptrace might be a usable workaround in some environments.
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Sources
CWEs
Related Vulnerabilities
Exploits
Exploit ID: CVE-2019-13272
Source: cisa
URL: https://www.cisa.gov/known-exploited-vulnerabilities-catalog
Recommendations
Source: nvd
For details on how to apply this update, which includes the changes described in this advisory, refer to:
https://access.redhat.com/articles/11258
The system must be rebooted for this update to take effect.
Source: nvd
For details on how to apply this update, which includes the changes described in this advisory, refer to:
https://access.redhat.com/articles/11258
The system must be rebooted for this update to take effect.
Vulnerable Software (247)
Type: Configuration
Product: kernel
Operating System: rhel 8
{ "fixed": "4.18.0-80.7.2.el8_0"}
Source: redhat
Type: Configuration
Product: kernel-alt
Operating System: rhel 7
{ "fixed": "4.14.0-115.12.1.el7a"}
Source: redhat
Type: Configuration
Product: kernel-headers-modules-un-def
Operating System: altlinux
{ "fixed": "1:5.1.17-alt1"}
Source: redhat
Type: Configuration
Product: kernel-headers-un-def
Operating System: altlinux
{ "fixed": "1:5.1.17-alt1"}
Source: redhat
Type: Configuration
Product: kernel-image-domU-un-def
Operating System: altlinux
{ "fixed": "1:5.1.17-alt1"}
Source: redhat
Type: Configuration
Product: kernel-image-un-def
Operating System: altlinux
{ "fixed": "1:5.1.17-alt1"}
Source: redhat
Type: Configuration
Product: kernel-modules-drm-ancient-un-def
Operating System: altlinux
{ "fixed": "1:5.1.17-alt1"}
Source: redhat
Type: Configuration
Product: kernel-modules-drm-nouveau-un-def
Operating System: altlinux
{ "fixed": "1:5.1.17-alt1"}
Source: redhat
Type: Configuration
Product: kernel-modules-drm-radeon-un-def
Operating System: altlinux
{ "fixed": "1:5.1.17-alt1"}
Source: redhat
Type: Configuration
Product: kernel-modules-drm-un-def
Operating System: altlinux
{ "fixed": "1:5.1.17-alt1"}
Source: redhat
Type: Configuration
Product: kernel-modules-ide-un-def
Operating System: altlinux
{ "fixed": "1:5.1.17-alt1"}
Source: redhat
Type: Configuration
Product: kernel-modules-kvm-un-def
Operating System: altlinux
{ "fixed": "1:5.1.17-alt1"}
Source: redhat
Type: Configuration
Product: kernel-modules-staging-un-def
Operating System: altlinux
{ "fixed": "1:5.1.17-alt1"}
Source: redhat
Type: Configuration
Product: kernel-modules-v4l-un-def
Operating System: altlinux
{ "fixed": "1:5.1.17-alt1"}
Source: redhat
Type: Configuration
Product: kernel-rt
Operating System: rhel
{ "fixed": "4.18.0-80.7.2.rt9.154.el8_0"}
Source: redhat
Type: Configuration
Product: linux
Operating System: astra 1.6.5
{ "unaffected": true}
Source: astra
Type: Configuration
Product: linux
Operating System: debian
{ "fixed": "4.19.37-6"}
Source: debian
Type: Configuration
Product: linux
Operating System: ubuntu cosmic 18.10
{ "unfixed": true}
Source: ubuntu
Type: Configuration
Product: linux
Operating System: ubuntu focal 20.04
{ "unaffected": true}
Source: ubuntu
Type: Configuration
Product: linux
Operating System: ubuntu questing 25.10
{ "unaffected": true}
Source: ubuntu