CVE-2017-17053

high
New! CVE Severity Now Using CVSS v3

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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.

References

http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=ccd5b3235180eef3cfec337df1c8554ab151b5cc

http://www.securityfocus.com/bid/102010

https://access.redhat.com/errata/RHSA-2018:0676

https://github.com/torvalds/linux/commit/ccd5b3235180eef3cfec337df1c8554ab151b5cc

https://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.12.10

Details

Source: MITRE

Published: 2017-11-29

Updated: 2018-12-19

Type: CWE-416

Risk Information

CVSS v2

Base Score: 6.9

Vector: AV:L/AC:M/Au:N/C:C/I:C/A:C

Impact Score: 10

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

Vulnerable Software

Configuration 1

OR

cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

Tenable Plugins

View all (2 total)

IDNameProductFamilySeverity
124979EulerOS Virtualization for ARM 64 3.0.1.0 : kernel (EulerOS-SA-2019-1526)NessusHuawei Local Security Checks
high
108984RHEL 7 : kernel-rt (RHSA-2018:0676)NessusRed Hat Local Security Checks
critical