CWE
362 667
Advisory Published
CVE Published
Updated

CVE-2019-3901: Race Condition

First published: Mon Apr 25 2016(Updated: )

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.

Credit: secalert@redhat.com

Affected SoftwareAffected VersionHow to fix
redhat/kernel-rt<0:3.10.0-1127.rt56.1093.el7
0:3.10.0-1127.rt56.1093.el7
redhat/kernel<0:3.10.0-1127.el7
0:3.10.0-1127.el7
redhat/kernel<0:3.10.0-957.56.1.el7
0:3.10.0-957.56.1.el7
redhat/kernel<0:3.10.0-1062.26.1.el7
0:3.10.0-1062.26.1.el7
IBM Data Risk Manager<=2.0.6
Linux Linux kernel<4.8
Debian Debian Linux=8.0
Netapp Active Iq Unified Manager For Vmware Vsphere>=9.5
Netapp Hci Management Node
Netapp Snapprotect
Netapp Solidfire
Netapp Storage Replication Adapter For Clustered Data Ontap For Vmware Vsphere>=7.2
Netapp Vasa Provider For Clustered Data Ontap>=7.2
NetApp Virtual Storage Console for VMware vSphere>=7.2
Netapp Cn1610 Firmware
Netapp Cn1610

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