PYSEC-2020-208

An incomplete fix was found for the fix of the flaw CVE-2020-1733 ansible: insecure temporary directory when running becomeuser from become directive. The provided fix is insufficient to prevent the race condition on systems using ACLs and FUSE filesystems. Ansible Engine 2.7.18, 2.8.12, and 2.9....

UBUNTU-CVE-2020-10744

An incomplete fix was found for the fix of the flaw CVE-2020-1733 ansible: insecure temporary directory when running becomeuser from become directive. The provided fix is insufficient to prevent the race condition on systems using ACLs and FUSE filesystems. Ansible Engine 2.7.18, 2.8.12, and 2.9....

PT-2020-12307 · Ansible +3 · Ansible Tower +5

Name of the Vulnerable Software and Affected Versions: Ansible Engine versions prior to 2.9.9 Ansible Tower versions prior to 3.6.4 Description: The issue is related to an insecure temporary directory when running become user from the become directive. The provided fix is insufficient to prevent ...

CVE-2019-20794

An issue was discovered in the Linux kernel 4.18 through 5.6.11 when unprivileged user namespaces are allowed. A user can create their own PID namespace, and mount a FUSE filesystem. Upon interaction with this FUSE filesystem, if the userspace component is terminated via a kill of the PID...

DEBIAN-CVE-2019-20794

An issue was discovered in the Linux kernel 4.18 through 5.6.11 when unprivileged user namespaces are allowed. A user can create their own PID namespace, and mount a FUSE filesystem. Upon interaction with this FUSE filesystem, if the userspace component is terminated via a kill of the PID...

CVE-2019-20794

An issue was discovered in the Linux kernel 4.18 through 5.6.11 when unprivileged user namespaces are allowed. A user can create their own PID namespace, and mount a FUSE filesystem. Upon interaction with this FUSE filesystem, if the userspace component is terminated via a kill of the PID...

Design/Logic Flaw

An issue was discovered in the Linux kernel 4.18 through 5.6.11 when unprivileged user namespaces are allowed. A user can create their own PID namespace, and mount a FUSE filesystem. Upon interaction with this FUSE filesystem, if the userspace component is terminated via a kill of the PID...

UBUNTU-CVE-2019-20794

An issue was discovered in the Linux kernel 4.18 through 5.6.11 when unprivileged user namespaces are allowed. A user can create their own PID namespace, and mount a FUSE filesystem. Upon interaction with this FUSE filesystem, if the userspace component is terminated via a kill of the PID...

CVE-2019-20794

An issue was discovered in the Linux kernel 4.18 through 5.6.11 when unprivileged user namespaces are allowed. A user can create their own PID namespace, and mount a FUSE filesystem. Upon interaction with this FUSE filesystem, if the userspace component is terminated via a kill of the PID...

CVE-2019-20794

An issue was discovered in the Linux kernel 4.18 through 5.6.11 when unprivileged user namespaces are allowed. A user can create their own PID namespace, and mount a FUSE filesystem. Upon interaction with this FUSE filesystem, if the userspace component is terminated via a kill of the PID...

CVE-2019-20794

CVE-2019-20794 : The Linux kernel versions 4.18–5.6.11 are affected when unprivileged user namespaces are allowed. A user can create their own PID namespace and mount a FUSE filesystem; if the userspace component is terminated by killing PID 1, the interaction with the FUSE mount can hang the tas...

CVE-2019-11487

A flaw was found in the Linux kernel's implementation of the FUSE filesystem, where it allows a page reference counter overflow. If a page reference counter overflows into a negative value, it can be placed back into the "free" list for reuse by other applications. This flaw allows a local attack...

kernel: Count overflow in FUSE request leading to use-after-free issues.

A flaw was found in the Linux kernel's implementation of the FUSE filesystem, where it allows a page reference counter overflow. If a page reference counter overflows into a negative value, it can be placed back into the "free" list for reuse by other applications. This flaw allows a local attack...

kernel: Count overflow in FUSE request leading to use-after-free issues.

A flaw was found in the Linux kernel's implementation of the FUSE filesystem, where it allows a page reference counter overflow. If a page reference counter overflows into a negative value, it can be placed back into the "free" list for reuse by other applications. This flaw allows a local attack...

Ubuntu 19.10 - ubuntu-aufs-modified mmap_region() Breaks Refcounting in overlayfs/shiftfs Error Path

Tested on 19.10. Ubuntu's aufs kernel patch includes the following change which I interestingly can't see in the AUFS code at https://github.com/sfjro/aufs5-linux/blob/master/mm/mmap.c: ================================================================== +define vmafputvma vmadofputvma, func, LINE...

Ubuntu 19.10 - ubuntu-aufs-modified mmap_region() Breaks Refcounting in overlayfsshiftfs Error Path

Ubuntu 19.10 - ubuntu-aufs-modified mmapregion Breaks Refcounting in overlayfsshiftfs Error Path Tested on 19.10. Ubuntu's aufs kernel patch includes the following change which I interestingly can't see in the AUFS code at https://github.com/sfjro/aufs5-linux/blob/master/mm/mmap.c:...

Ubuntu ubuntu-aufs-modified mmap_region() Refcounting Issue

Ubuntu: ubuntu-aufs-modified mmapregion breaks refcounting in overlayfs/shiftfs error path Tested on 19.10. Ubuntu's aufs kernel patch includes the following change which I interestingly can't see in the AUFS code at https://github.com/sfjro/aufs5-linux/blob/master/mm/mmap.c:...

kernel: Count overflow in FUSE request leading to use-after-free issues.

A flaw was found in the Linux kernel's implementation of the FUSE filesystem, where it allows a page reference counter overflow. If a page reference counter overflows into a negative value, it can be placed back into the "free" list for reuse by other applications. This flaw allows a local attack...

kernel: Count overflow in FUSE request leading to use-after-free issues.

A flaw was found in the Linux kernel's implementation of the FUSE filesystem, where it allows a page reference counter overflow. If a page reference counter overflows into a negative value, it can be placed back into the "free" list for reuse by other applications. This flaw allows a local attack...

Denial Of Service (DoS)

Linux Kernel is vulnerable to denial of service DoS attacks. This occurs when an application punches a hole in a file that doesn't end aligned to a page boundary. A non-privileged user could mount a fuse filesystem on RHEL causing an application crash...