Detections
Analytics
CVE-2017-17053
high
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
https://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.12.10
https://github.com/torvalds/linux/commit/ccd5b3235180eef3cfec337df1c8554ab151b5cc
https://access.redhat.com/errata/RHSA-2018:0676