HOMEVULNERABILITIESCVE-2019-3901
MEDIUM

CVE-2019-3901

CWE-667Published: April 22, 2019· Updated: Jun 17, 2026

4.7
CVSS v3.1

Official 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.

NVD Source

Technical Analysis

CVE-2019-3901 requires local access, meaning attackers must already have a foothold on the target system.

Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

A successful exploit results in complete confidentiality breach (data exposure), with a CVSS base score of 4.7.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorLocal
Attack ComplexityHigh
Privileges Req.Low
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityNone
AvailabilityNone
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N

Affected Vendors & Products

Debian1 product(s)
debian linux
Linux1 product(s)
linux kernel
netapp9 product(s)
active iq unified manager for vmware vspherehci management nodesnapprotectsolidfirestorage replication adapter for clustered data ontap for vmware vspherevasa provider for clustered data ontapvirtual storage console for vmware vspherecn1610 firmwarecn1610
Source: NVD CPE · 11 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

PATCHhttps://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3901
PATCHhttps://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3901
ADVISORYhttp://www.securityfocus.com/bid/89937
ADVISORYhttps://lists.debian.org/debian-lts-announce/2019/05/msg00041.html
ADVISORYhttps://lists.debian.org/debian-lts-announce/2019/05/msg00042.html
ADVISORYhttps://security.netapp.com/advisory/ntap-20190517-0005/
ADVISORYhttp://www.securityfocus.com/bid/89937
ADVISORYhttps://lists.debian.org/debian-lts-announce/2019/05/msg00041.html
ADVISORYhttps://lists.debian.org/debian-lts-announce/2019/05/msg00042.html
ADVISORYhttps://security.netapp.com/advisory/ntap-20190517-0005/

All References (10)

→
http://www.securityfocus.com/bid/89937Third Party Advisory · VDB Entry
→
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3901Issue Tracking · Patch · Third Party Advisory
→
https://lists.debian.org/debian-lts-announce/2019/05/msg00041.htmlMailing List · Third Party Advisory
→
https://lists.debian.org/debian-lts-announce/2019/05/msg00042.htmlMailing List · Third Party Advisory
→
https://security.netapp.com/advisory/ntap-20190517-0005/Third Party Advisory
→
http://www.securityfocus.com/bid/89937Third Party Advisory · VDB Entry
→
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3901Issue Tracking · Patch · Third Party Advisory
→
https://lists.debian.org/debian-lts-announce/2019/05/msg00041.htmlMailing List · Third Party Advisory
→
https://lists.debian.org/debian-lts-announce/2019/05/msg00042.htmlMailing List · Third Party Advisory
→
https://security.netapp.com/advisory/ntap-20190517-0005/Third Party Advisory

Quick Facts

CVE IDCVE-2019-3901
CVSS Score4.7 / 10
SeverityMEDIUM
WeaknessCWE-667
CISA KEVNo
Affected3 vendor(s)
PublishedApr 22, 2019

Related CVEs (CWE-667)

CVE-2021-22530
9.9
CVE-2019-5886
9.8
CVE-2020-12658
9.8
CVE-2020-15674
8.8
CVE-2024-58087
8.1
CVE-2024-26934
7.8

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2019-3901 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWatch. CVE data is provided under the NVD usage policy.
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