Vulnerability Details : CVE-2019-3901
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.
Exploit prediction scoring system (EPSS) score for CVE-2019-3901
Probability of exploitation activity in the next 30 days: 0.04%
Percentile, the proportion of vulnerabilities that are scored at or less: ~ 6 % EPSS Score History EPSS FAQ
CVSS scores for CVE-2019-3901
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source |
|---|---|---|---|---|---|
|
1.9
|
LOW | AV:L/AC:M/Au:N/C:P/I:N/A:N |
3.4
|
2.9
|
NIST |
|
5.6
|
MEDIUM | CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N |
1.1
|
4.0
|
Red Hat, Inc. |
|
4.7
|
MEDIUM | CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N |
1.0
|
3.6
|
NIST |
CWE ids for CVE-2019-3901
-
The product does not properly acquire or release a lock on a resource, leading to unexpected resource state changes and behaviors.Assigned by:
- nvd@nist.gov (Secondary)
- secalert@redhat.com (Primary)
References for CVE-2019-3901
-
http://www.securityfocus.com/bid/89937
Linux Kernel 'perf_event_open()' Function Local Information Disclosure VulnerabilityThird Party Advisory;VDB Entry
-
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3901
1701245 – (CVE-2019-3901) CVE-2019-3901 kernel: perf_event_open() and execve() race in setuid programs allows a data leakIssue Tracking;Patch;Third Party Advisory
-
https://security.netapp.com/advisory/ntap-20190517-0005/
May 2019 Linux Kernel Vulnerabilities in NetApp Products | NetApp Product SecurityThird Party Advisory
-
https://lists.debian.org/debian-lts-announce/2019/05/msg00042.html
[SECURITY] [DLA 1799-2] linux security updateMailing List;Third Party Advisory
-
https://lists.debian.org/debian-lts-announce/2019/05/msg00041.html
[SECURITY] [DLA 1799-1] linux security updateMailing List;Third Party Advisory
Products affected by CVE-2019-3901
- cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
- cpe:2.3:a:netapp:virtual_storage_console_for_vmware_vsphere:*:*:*:*:*:*:*:*
- cpe:2.3:o:netapp:cn1610_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:a:netapp:hci_management_node:-:*:*:*:*:*:*:*
- cpe:2.3:a:netapp:solidfire:-:*:*:*:*:*:*:*
- cpe:2.3:a:netapp:vasa_provider_for_clustered_data_ontap:*:*:*:*:*:*:*:*
- cpe:2.3:a:netapp:snapprotect:-:*:*:*:*:*:*:*
- cpe:2.3:a:netapp:active_iq_unified_manager_for_vmware_vsphere:*:*:*:*:*:*:*:*
- Netapp » Storage Replication Adapter For Clustered Data Ontap For Vmware VsphereVersions from including (>=) 7.2cpe:2.3:a:netapp:storage_replication_adapter_for_clustered_data_ontap_for_vmware_vsphere:*:*:*:*:*:*:*:*