medium4.7
CVE-2019-3901
A race condition in perf_event_open() allows local attackers to leak sensitive data from setuid programs.
Impact
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.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Linux | Linux Kernel | before 4.8 |
| Debian | Debian Linux | Version 8.0 |
| Netapp | Active Iq Unified Manager For Vmware Vsphere | from 9.5 |
| Netapp | Hci Management Node | All versions |
| Netapp | Snapprotect | All versions |
| Netapp | Solidfire | All versions |
| Netapp | Storage Replication Adapter For Clustered Data Ontap For Vmware Vsphere | from 7.2 |
| Netapp | Vasa Provider For Clustered Data Ontap | from 7.2 |
| Netapp | Virtual Storage Console For Vmware Vsphere | from 7.2 |
| Netapp | Cn1610 Firmware | All versions |
Weakness classification
References
- NVD record
- CVE.org record
- http://www.securityfocus.com/bid/89937
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3901
- https://lists.debian.org/debian-lts-announce/2019/05/msg00041.html
- https://lists.debian.org/debian-lts-announce/2019/05/msg00042.html
- https://security.netapp.com/advisory/ntap-20190517-0005/
- http://www.securityfocus.com/bid/89937
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3901
- https://lists.debian.org/debian-lts-announce/2019/05/msg00041.html
- https://lists.debian.org/debian-lts-announce/2019/05/msg00042.html
- https://security.netapp.com/advisory/ntap-20190517-0005/