Executive Summary

Informations
NameCVE-2019-3901First vendor Publication2019-04-22
VendorCveLast vendor Modification2019-05-28

Security-Database Scoring CVSS v2

Cvss vector : (AV:L/AC:M/Au:N/C:P/I:N/A:N)
Cvss Base Score1.9Attack RangeLocal
Cvss Impact Score2.9Attack ComplexityMedium
Cvss Expoit Score3.4AuthenticationNone Required
Calculate full CVSS 2.0 Vectors scores

Detail

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.

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-3901

CWE : Common Weakness Enumeration

%idName
100 %CWE-362Race Condition

CPE : Common Platform Enumeration

TypeDescriptionCount
Os2339

Sources (Detail)

SourceUrl
BID http://www.securityfocus.com/bid/89937
CONFIRM https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3901
https://security.netapp.com/advisory/ntap-20190517-0005/
MLIST https://lists.debian.org/debian-lts-announce/2019/05/msg00041.html
https://lists.debian.org/debian-lts-announce/2019/05/msg00042.html

Alert History

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DateInformations
2019-09-12 12:11:17
  • Multiple Updates
2019-07-02 15:40:10
  • Multiple Updates
2019-05-29 00:18:58
  • Multiple Updates
2019-05-17 17:19:38
  • Multiple Updates
2019-04-29 21:19:29
  • Multiple Updates
2019-04-24 21:19:45
  • Multiple Updates
2019-04-22 21:19:19
  • First insertion