Vulnerability Details : CVE-2019-3896
A double-free can happen in idr_remove_all() in lib/idr.c in the Linux kernel 2.6 branch. An unprivileged local attacker can use this flaw for a privilege escalation or for a system crash and a denial of service (DoS).
Vulnerability category: Memory CorruptionGain privilegeDenial of service
Exploit prediction scoring system (EPSS) score for CVE-2019-3896
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-2019-3896
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|
|
7.2
|
HIGH | AV:L/AC:L/Au:N/C:C/I:C/A:C |
3.9
|
10.0
|
[email protected] |
|
7.8
|
HIGH | CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
1.8
|
5.9
|
[email protected] |
|
7.0
|
HIGH | CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H |
1.0
|
5.9
|
[email protected] |
CWE ids for CVE-2019-3896
-
The product calls free() twice on the same memory address, potentially leading to modification of unexpected memory locations.Assigned by: [email protected] (Secondary)
-
Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code.Assigned by: [email protected] (Primary)
References for CVE-2019-3896
-
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3896
Issue Tracking;Third Party Advisory
-
https://support.f5.com/csp/article/K04327111
-
http://www.securityfocus.com/bid/108814
Third Party Advisory;VDB Entry
- https://security.netapp.com/advisory/ntap-20190710-0002/
Products affected by CVE-2019-3896
- cpe:2.3:o:redhat:enterprise_linux_desktop:6.0:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux_server:6.0:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux_workstation:6.0:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux_server_aus:6.5:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux_server_aus:6.6:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*