CVE-2019-13233high
Description
In arch/x86/lib/insn-eval.c in the Linux kernel before 5.1.9, there is a use-after-free for access to an LDT entry because of a race condition between modify_ldt() and a #BR exception for an MPX bounds violation.
References
http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00025.html
http://packetstormsecurity.com/files/154408/Kernel-Live-Patch-Security-Notice-LSN-0055-1.html
https://bugs.chromium.org/p/project-zero/issues/detail?id=1879
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.1.9
https://github.com/torvalds/linux/commit/de9f869616dd95e95c00bdd6b0fcd3421e8a4323
https://seclists.org/bugtraq/2019/Aug/13
https://security.netapp.com/advisory/ntap-20190806-0001/
https://support.f5.com/csp/article/K13331647?utm_source=f5support&utm_medium=RSS
https://usn.ubuntu.com/4093-1/
https://usn.ubuntu.com/4094-1/
https://usn.ubuntu.com/4117-1/
Details
Source: MITRE
Published: 2019-07-04
Updated: 2019-07-20
Type: CWE-362
Risk Information
CVSS v2
Base Score: 4.4
Vector: AV:L/AC:M/Au:N/C:P/I:P/A:P
Impact Score: 6.4
Exploitability Score: 3.4
Severity: MEDIUM
CVSS v3
Base Score: 7
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Impact Score: 5.9
Exploitability Score: 1
Severity: HIGH