CVE-2019-20811

An issue was discovered in the Linux kernel before 5.0.6. In rxqueueaddkobject and netdevqueueaddkobject in net/core/net-sysfs.c, a reference count is mishandled, aka CID-a3e23f719f5c...

Denial Of Service (DoS)

kernel is vulnerable to denial of service DoS. Numerous reference count leaks were found in the Linux kernel's block layer I/O context handling implementation. This could allow a local, unprivileged user to cause a denial of service...

CVE-2019-20422

In the Linux kernel before 5.3.4, fib6rulelookup in net/ipv6/ip6fib.c mishandles the RT6LOOKUPFDSTNOREF flag in a reference-count decision, leading to for example a crash that was identified by syzkaller, aka CID-7b09c2d052db...

Huawei EulerOS: Security Advisory for kernel (EulerOS-SA-2019-1671)

The remote host is missing an update for the Huawei EulerOS SPDX-FileCopyrightText: 2020 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-only ifdescription...

PYSEC-2019-111

psutil aka python-psutil through 5.6.5 can have a double free. This occurs because of refcount mishandling within a while or for loop that converts system data into a Python object...

UBUNTU-CVE-2019-15794

Overlayfs in the Linux kernel and shiftfs, a non-upstream patch to the Linux kernel included in the Ubuntu 5.0 and 5.3 kernel series, both replace vma-vmfile in their mmap handlers. On error the original value is not restored, and the reference is put for the file to which vmfile points. On...

macOS XNU - Missing Locking in checkdirs_callback() Enables Race with fchdir_common()

macOS XNU - Missing Locking in checkdirscallback Enables Race with fchdircommon On macOS, when a new mount point is created, the kernel uses checkdirs to, as a comment above the function explains: "Scan all active processes to see if any of them have a current or root directory onto which the new...

FreeBSD : FreeBSD -- Reference count overflow in mqueue filesystem 32-bit compat (53b3474c-f680-11e9-a87f-a4badb2f4699)

System calls operating on file descriptors obtain a reference to relevant struct file which due to a programming error was not always put back, which in turn could be used to overflow the counter of affected struct file. Impact : A local user can use this flaw to obtain access to files,...

CVE-2019-18198

In the Linux kernel before 5.3.4, a reference count usage error in the fib6rulesuppress function in the fib6 suppression feature of net/ipv6/fib6rules.c, when handling the FIBLOOKUPNOREF flag, can be exploited by a local attacker to corrupt memory, aka CID-ca7a03c41753...

CVE-2019-18198

In the Linux kernel before 5.3.4, a reference count usage error in the fib6rulesuppress function in the fib6 suppression feature of net/ipv6/fib6rules.c, when handling the FIBLOOKUPNOREF flag, can be exploited by a local attacker to corrupt memory, aka CID-ca7a03c41753...

Session fixation

In the Linux kernel before 5.3.4, a reference count usage error in the fib6rulesuppress function in the fib6 suppression feature of net/ipv6/fib6rules.c, when handling the FIBLOOKUPNOREF flag, can be exploited by a local attacker to corrupt memory, aka CID-ca7a03c41753...

CVE-2019-18198

In the Linux kernel before 5.3.4, a reference count usage error in the fib6rulesuppress function in the fib6 suppression feature of net/ipv6/fib6rules.c, when handling the FIBLOOKUPNOREF flag, can be exploited by a local attacker to corrupt memory, aka CID-ca7a03c41753...

CVE-2019-18198

In the Linux kernel before 5.3.4, a reference count usage error in the fib6rulesuppress function in the fib6 suppression feature of net/ipv6/fib6rules.c, when handling the FIBLOOKUPNOREF flag, can be exploited by a local attacker to corrupt memory, aka CID-ca7a03c41753...

CVE-2019-18198

In the Linux kernel before 5.3.4, a reference count usage error in the fib6rulesuppress function in the fib6 suppression feature of net/ipv6/fib6rules.c, when handling the FIBLOOKUPNOREF flag, can be exploited by a local attacker to corrupt memory, aka CID-ca7a03c41753...

UBUNTU-CVE-2019-18198

In the Linux kernel before 5.3.4, a reference count usage error in the fib6rulesuppress function in the fib6 suppression feature of net/ipv6/fib6rules.c, when handling the FIBLOOKUPNOREF flag, can be exploited by a local attacker to corrupt memory, aka CID-ca7a03c41753...

PT-2019-4349 · Linux +2 · Linux +2

Name of the Vulnerable Software and Affected Versions: Linux versions prior to 5.3.4 Description: A local attacker can exploit a reference count usage error in the fib6 rule suppress function in the fib6 suppression feature of the net/ipv6/fib6 rules.c file, when handling the FIB LOOKUP NOREF fla...

FreeBSD -- Reference count overflow in mqueue filesystem 32-bit compat

Problem Description: System calls operating on file descriptors obtain a reference to relevant struct file which due to a programming error was not always put back, which in turn could be used to overflow the counter of affected struct file. Impact: A local user can use this flaw to obtain access...

FreeBSD : FreeBSD -- File description reference count leak (0d3f99f7-b30c-11e9-a87f-a4badb2f4699)

If a process attempts to transmit rights over a UNIX-domain socket and an error causes the attempt to fail, references acquired on the rights are not released and are leaked. This bug can be used to cause the reference counter to wrap around and free the corresponding file structure. Impact : A...

FreeBSD : FreeBSD -- Reference count overflow in mqueue filesystem (deb6e164-b30b-11e9-a87f-a4badb2f4699)

System calls operating on file descriptors obtain a reference to relevant struct file which due to a programming error was not always put back, which in turn could be used to overflow the counter of affected struct file. Impact : A local user can use this flaw to obtain access to files,...

Vulnerabilities in the files fs/fuse/dev.c, fs/pipe.c, fs/splice.c, include/linux/mm.h, include/linux/pipe_fs_i.h, kernel/trace/trace.c, mm/gup.c, and mm/hugetlb.c of the Linux operating system’s kernel allow attackers to compromise the confidentiality, integrity, and accessibility of protected information.

The vulnerability in the files fs/fuse/dev.c, fs/pipe.c, fs/splice.c, include/linux/mm.h, include/linux/pipefsi.h, kernel/trace/trace.c, mm/gup.c, and mm/hugetlb.c of the Linux operating system is related to a counting error in the page -refcount function. This leads to the use of memory after it...