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.
SeverityHigh
CVSS7.0
Exploit probability—
Product
Linux Kernel
PublishedNov 29, 2017
First seenNov 29, 2017
How to fix
Update
- linux linux_kernel4.4.153, 4.9.46, 4.12.10 or later
Vendor advisories
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| linux linux_kernel | 4.4.144 ≤ v < 4.4.153, 4.6 ≤ v < 4.9.46, 4.10 ≤ v < 4.12.10 | 4.4.153, 4.9.46, 4.12.10 |
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