CVE-2018-5344
HIGH severity · CVSS 7.8 · CWE-362
7.8CVSS HIGH
Summary
In the Linux kernel through 4.14.13, drivers/block/loop.c mishandles lo_release serialization, which allows attackers to cause a denial of service (__lock_acquire use-after-free) or possibly have unspecified other impact.
Impact & exploitability
Attack vectorLocal
Attack complexityLow
Privileges requiredLow
User interactionNone
Confidentiality impactHigh
Integrity impactHigh
Availability impactHigh
Exploit probability (EPSS)0%
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Affected products we track (1)
Recommendation
Apply the vendor fix promptly. Open any affected product above for its exact safe version.
Official patch: http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=ae6650163c66a7eff1acd6eb8b0f752dcfa8eba5 ↗
Additional information
- NVD record
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=ae6650163c66a7eff1acd6eb8b0f752dcfa8eba5Patch
- https://github.com/torvalds/linux/commit/ae6650163c66a7eff1acd6eb8b0f752dcfa8eba5Patch
- http://www.securityfocus.com/bid/102503Advisory
- https://access.redhat.com/errata/RHSA-2018:2948Advisory
- https://access.redhat.com/errata/RHSA-2018:3083Advisory
- https://access.redhat.com/errata/RHSA-2018:3096Advisory
- https://usn.ubuntu.com/3583-1/Advisory
- https://usn.ubuntu.com/3583-2/Advisory