debian debian-linux CVE-2019-13272 vulnerability in Debian and Other Products
Published on July 17, 2019

product logo product logo product logo product logo product logo product logo
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.

Vendor Advisory Vendor Advisory Vendor Advisory Vendor Advisory Vendor Advisory Vendor Advisory Vendor Advisory Vendor Advisory Vendor Advisory Vendor Advisory NVD

Known Exploited Vulnerability

This Linux Kernel Improper Privilege Management Vulnerability is part of CISA's list of Known Exploited Vulnerabilities. Kernel/ptrace.c in Linux kernel mishandles contains an improper privilege management vulnerability which allows local users to obtain root access.

The following remediation steps are recommended / required by June 10, 2022: Apply updates per vendor instructions.

Vulnerability Analysis

CVE-2019-13272 is exploitable with local system access, and requires small amount of user privileges. This vulnerability is considered to have a low attack complexity. This vulnerability is known to be actively exploited by threat actors. The potential impact of an exploit of this vulnerability is considered to be very high.

Attack Vector:
LOCAL
Attack Complexity:
LOW
Privileges Required:
LOW
User Interaction:
NONE
Scope:
UNCHANGED
Confidentiality Impact:
HIGH
Integrity Impact:
HIGH
Availability Impact:
HIGH

Products Associated with CVE-2019-13272

You can be notified by email with stack.watch whenever vulnerabilities like CVE-2019-13272 are published in these products:

Debian Linux
 
Fedora Project Fedora
 
Linux Kernel
 
Canonical Ubuntu Linux
 
Red Hat Enterprise Linux (RHEL)
 
Red Hat Enterprise Linux For Real Time
 
NetApp Active Iq Unified Manager
 
NetApp E Series Performance Analyzer
 
NetApp E Series Santricity Os Controller
 
NetApp Hci Management Node
 
NetApp Service Processor
 
NetApp Solidfire
 
NetApp Steelstore Cloud Integrated Storage
 
NetApp Hci Compute Node
 
Red Hat Enterprise Linux Real Time Nfv Tus
 
Red Hat Enterprise Linux Real Time Tus
 
Red Hat Enterprise Linux Real Time Nfv
 
Red Hat Enterprise Linux Ibm Z Systems
 
Red Hat Enterprise Linux For Arm 64
 

Exploit Probability

EPSS
81.25%
Percentile
99.14%

EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.