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CVE-2019-3901

Published: Apr 22, 2019Updated: Nov 21, 2024 Sources: CVE List NVDCWE-667
NVD MITRE
4.7CVSSMEDIUM
EPSS Score
0.3%
Top 74.5%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

Description

A race condition in perf_event_open() allows local attackers to leak sensitive data from setuid programs. As no relevant locks (in particular the cred_guard_mutex) are held during the ptrace_may_access() call, it is possible for the specified target task to perform an execve() syscall with setuid execution before perf_event_alloc() actually attaches to it, allowing an attacker to bypass the ptrace_may_access() check and the perf_event_exit_task(current) call that is performed in install_exec_creds() during privileged execve() calls. This issue affects kernel versions before 4.8.

CVSS Vector Breakdown

AV:LAC:HPR:LUI:NS:UC:HI:NA:N
Exploitability
AV:LAttack Vector
Local
AC:HAttack Complexity
High
PR:LPrivileges Required
Low
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:NIntegrity
None
A:NAvailability
None
Open in CVSS calculator →

Weaknesses

CWE-667

Affected Products

linux kernellinux
On-premOS
Operating Systems
debian linuxdebian
On-premOS
Operating Systems / linux-distro
active iq unified manager for vmware vspherenetappHardware Firmware
hci management nodenetappHardware Firmware
snapprotectnetappHardware Firmware
linuxoss-projectOperating Systemsaka the linux kernel
debianoss-projectGBOperating Systemsaka debian gnu/linux
netappcommercialUSHardware Firmware
and 6 more affected products View all →

Attack Graph

Products CVE Techniques Tactics

Click technique nodes to view MITRE ATT&CK details. Scroll to zoom, drag to pan.

Exploitability

Official Patch Available

MITRE ATT&CK

1 technique
Privilege Escalation
View detailed technique mapping

References

http://www.securityfocus.com/bid/89937
securityfocus.com
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3901
bugzilla.redhat.com
https://lists.debian.org/debian-lts-announce/2019/05/msg00041.html
lists.debian.org
and 2 more references View all →

Timeline

Published
Apr 22, 2019
Last Updated
Nov 21, 2024

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