kernel: Use-after-free in userfaultfd_event_wait_completion function in userfaultfd.c

A flaw was found in the Linux kernel's handling of fork failure when dealing with event messages in the userfaultfd code. Failure to fork correctly can create a fork event that will be removed from an already freed list of events...

kernel security and bug fix update

3.10.0-693.17.1.OL7 - Oracle Linux certificates Alexey Petrenko - Oracle Linux RHCK Module Signing Key was compiled into kernel [email protected] - Update x509.genkey bug 24817676 3.10.0-693.17.1 - s390 locking/barriers: remove old gmb macro definition Denys Vlasenko...

Linux kernel memory misreference vulnerability (CNVD-2018-03259)

Linux kernel is the kernel used by Linux, the open source operating system released by the Linux Foundation in the United States. A memory misreference vulnerability exists in the fs/userfaultfd.c file in the Linux kernel. An attacker can exploit this vulnerability to remove a fork event from the...

CVE-2017-15126

A use-after-free flaw was found in fs/userfaultfd.c in the Linux kernel before 4.13.6. The issue is related to the handling of fork failure when dealing with event messages. Failure to fork correctly can lead to a situation where a fork event will be removed from an already freed list of events...

UBUNTU-CVE-2017-15126

A use-after-free flaw was found in fs/userfaultfd.c in the Linux kernel before 4.13.6. The issue is related to the handling of fork failure when dealing with event messages. Failure to fork correctly can lead to a situation where a fork event will be removed from an already freed list of events...

DEBIAN-CVE-2017-15126

A use-after-free flaw was found in fs/userfaultfd.c in the Linux kernel before 4.13.6. The issue is related to the handling of fork failure when dealing with event messages. Failure to fork correctly can lead to a situation where a fork event will be removed from an already freed list of events...

Design/Logic Flaw

A use-after-free flaw was found in fs/userfaultfd.c in the Linux kernel before 4.13.6. The issue is related to the handling of fork failure when dealing with event messages. Failure to fork correctly can lead to a situation where a fork event will be removed from an already freed list of events...

CVE-2017-15126

A flaw was found in the Linux kernel's handling of fork failure when dealing with event messages in the userfaultfd code. Failure to fork correctly can create a fork event that will be removed from an already freed list of events...

PT-2017-3586 · Linux +3 · Linux Kernel +3

Name of the Vulnerable Software and Affected Versions: Linux kernel versions prior to 4.13.6 Description: A use-after-free flaw was found in fs/userfaultfd.c in the Linux kernel. The issue is related to the handling of fork failure when dealing with event messages. Failure to fork correctly can...

Linux Kernel < 4.5.1 - Off-By-One (PoC)

/ EDB Note Download: http://cyseclabs.com/exploits/matreshka.c Blog http://cyseclabs.com/blog/cve-2016-6187-heap-off-by-one-exploit / / Quick and dirty PoC for CVE-2016-6187 heap off-by-one PoC By Vitaly Nikolenko [email protected] There's no privilege escalation payload but the kernel will...