1235 matches found
Race condition
A race condition between hugetlb sysctl handlers in mm/hugetlb.c in the Linux kernel before 5.8.8 could be used by local attackers to corrupt memory, cause a NULL pointer dereference, or possibly have unspecified other impact, aka CID-17743798d812...
CVE-2020-25285
CVE-2020-25285 is a race condition in the Linux kernel hugetlb sysctl handlers (mm/hugetlb.c) that could allow a local attacker to corrupt memory or trigger NULL pointer dereferences. Public docs (e.g., ChangeLog-5.8.8) indicate the fix was released in kernel 5.8.8; Ubuntu/Debian advisories refer...
CVE-2020-25285
A race condition between hugetlb sysctl handlers in mm/hugetlb.c in the Linux kernel before 5.8.8 could be used by local attackers to corrupt memory, cause a NULL pointer dereference, or possibly have unspecified other impact, aka CID-17743798d812...
CVE-2020-25285: Concurrent Execution using Shared Resource with Improper Synchronization
A race condition between hugetlb sysctl handlers in mm/hugetlb.c in the Linux kernel before 5.8.8 could be used by local attackers to corrupt memory, cause a NULL pointer dereference, or possibly have unspecified other impact, aka CID-17743798d812...
CVE-2020-10774
A flaw memory disclosure flaw was found in the Linux kernel’s sysctl subsystem in reading the /proc/sys/kernel/rhfeatures file. This flaw allows a local user to read uninitialized values from the kernel memory. The highest threat from this vulnerability is to confidentiality. Mitigation Mitigatio...
kernel: integer overflow in tcp_ack_update_rtt in net/ipv4/tcp_input.c
A flaw was reported in the Linux kernel's TCP subsystem while calculating a packet round trip time, when a sysctl parameter /proc/sys/net/ipv4/tcpminrttwlen is set incorrectly. This causes an integer overflow which can lead to a denial Of service DOS attack...
kernel: Null pointer dereference in drop_sysctl_table() in fs/proc/proc_sysctl.c
A flaw was found in the Linux kernel’s implementation of dropping sysctl entries. A local attacker who has access to load modules on the system can trigger a condition during module load failure and panic the system...
Denial Of Service (DoS)
kernel is vulnerable to denial of service. A flaw in the Linux kernel's Stream Control Transmission Protocol SCTP implementation could allow a remote attacker to cause a denial of service if the sysctl "net.sctp.addipenable" and "authenable" variables were turned on they are off by default...
Linux: TCP timestamps
The tcptimestamps function makes the system prone to DoS attacks. This script tests whether the Linux host is configured to disable tcptimestamps. SPDX-FileCopyrightText: 2020 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective...
Linux: Number of outstanding syn requests allowed (net.ipv4.tcp_max_syn_backlog)
This script checks the number of outstanding syn requests allowed. 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...
Linux: sysctl net.ipv6.conf.all.forwarding
IP forwarding is used to determine which path a packet can be sent over multiple networks. Note: This scripts looks for SPDX-FileCopyrightText: 2020 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders...
Linux: sysctl net.ipv4.ip_forward
IP forwarding is used to determine which path a packet can be sent over multiple networks. The 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...
Linux: sysctl fs.suid_dumpable
Core dumps are the memory of a process when it crashes. Core dumps can grow to significant size, ending in a Denial of Service. Also, core dumps can be used to get confidential information from a core file. Note: This scripts looks for SPDX-FileCopyrightText: 2020 Greenbone AG Some text...
Linux: Read sysctl variables (KB)
sysctl is used to modify kernel parameters at runtime. The parameters available are those listed under /proc/sys/. Procfs is required for sysctl support in Linux. You can use sysctl to both read and write sysctl data. Note: This script only stores information for other Policy Controls. Copyright ...
Linux: Read sysctl config files (KB)
sysctl.conf is a simple file containing sysctl values to be read in and set by sysctl. Files to consider: /etc/sysctl.conf, /etc/sysctl.d/. Note: This script only stores information for other Policy Controls. Copyright C 2020 Greenbone Networks GmbH Some text descriptions might be excerpted from ...
CVE-2019-20054
A flaw was found in the Linux kernel’s implementation of dropping sysctl entries. A local attacker who has access to load modules on the system can trigger a condition during module load failure and panic the system...
CVE-2019-18805
A flaw was reported in the Linux kernel's TCP subsystem while calculating a packet round trip time, when a sysctl parameter /proc/sys/net/ipv4/tcpminrttwlen is set incorrectly. This causes an integer overflow which can lead to a denial Of service DOS attack. Mitigation This flaw can be mitigated ...
Linux kernel fs/proc/proc_sysctl.c file null pointer dereference vulnerability
The Linux kernel is a computer operating system kernel written in C and assembly language, compliant with the POSIX standard, and distributed under the GNU General Public License. A null pointer dereference vulnerability exists in the 'dropsysctltable' in the fs/proc/procsysctl.c file in Linux...
