PT-2019-2798 · Linux+5 · Linux Kernel+5
CVSS v4.0
7.3
Alta
| Vetor | AV:L/AC:H/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N |
Name of the Vulnerable Software and Affected Versions
Linux kernel versions prior to 5.1.9
Description
The issue is related to a use-after-free condition in the Linux kernel, specifically in the arch/x86/lib/insn-eval.c file. This condition arises due to a race between the modify ldt() function and a #BR exception that occurs for an MPX bounds violation. The vulnerability can potentially be exploited to elevate privileges.
Recommendations
For Linux kernel versions prior to 5.1.9, update to version 5.1.9 or later to resolve the issue.
Exploit
Correção
DoS
Use After Free
Race Condition
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Identificadores relacionados
Produtos afetados
Alt Linux
Centos
Linux Kernel
Red Hat
Suse
Ubuntu