CVE-2017-17053

 

Published at: - 29-11-2017 04:29

Last modified: - 26-10-2022 01:44

Total changes: - 3

Description

The init_new_context function in arch/x86/include/asm/mmu_context.h in the Linux kernel before 4.12.10 does not correctly handle errors from LDT table allocation when forking a new process, allowing a local attacker to achieve a use-after-free or possibly have unspecified other impact by running a specially crafted program. This vulnerability only affected kernels built with CONFIG_MODIFY_LDT_SYSCALL=y.

Common Vulnerability Scoring System (CVSS)

CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

 

Verification logic

 

Reference

• https://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.12.10
• https://github.com/torvalds/linux/commit/ccd5b3235180eef3cfec337df1c8554ab151b5cc
• http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=ccd5b3235180eef3cfec337df1c8554ab151b5cc
• 102010-Third Party Advisory, VDB Entry
• RHSA-2018:0676-Third Party Advisory

 

Keywords

NVD

 

CVE-2017-17053

 

CVE

 

Common vulnerabilities & exposures

 

CVSS

 

Common vulnerability scoring system

 

Security

 

Vulnerabilities

 

Exposures