Vulnerability 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.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | >= 4.4.144, < 4.4.153 |
Related Weaknesses (CWE)
References
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=ccd5b3Issue TrackingPatchVendor Advisory
- http://www.securityfocus.com/bid/102010Third Party AdvisoryVDB Entry
- https://access.redhat.com/errata/RHSA-2018:0676Third Party Advisory
- https://github.com/torvalds/linux/commit/ccd5b3235180eef3cfec337df1c8554ab151b5cPatchThird Party Advisory
- https://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.12.10Issue TrackingVendor Advisory
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=ccd5b3Issue TrackingPatchVendor Advisory
- http://www.securityfocus.com/bid/102010Third Party AdvisoryVDB Entry
- https://access.redhat.com/errata/RHSA-2018:0676Third Party Advisory
- https://github.com/torvalds/linux/commit/ccd5b3235180eef3cfec337df1c8554ab151b5cPatchThird Party Advisory
- https://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.12.10Issue TrackingVendor Advisory
FAQ
What is CVE-2017-17053?
CVE-2017-17053 is a vulnerability with a CVSS score of 7.0 (HIGH). 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...
How severe is CVE-2017-17053?
CVE-2017-17053 has been rated HIGH with a CVSS base score of 7.0/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2017-17053?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel.