kernel: Local buffer overflow in ctnetlink_parse_tuple_filter in net/netfilter/nf_conntrack_netlink.c

A flaw was found in the Linux kernel. A local attacker, able to inject conntrack netlink configuration, could overflow a local buffer causing crashes or triggering the use of incorrect protocol numbers in ctnetlinkparsetuplefilter in net/netfilter/nfconntracknetlink.c. The highest threat from thi...

Oracle Linux 8 : kernel (ELSA-2021-0003)

The remote Oracle Linux 8 host has packages installed that are affected by a vulnerability as referenced in the ELSA-2021-0003 advisory. - net netfilter: ctnetlink: add a range check for l3/l4 protonum Florian Westphal 1892665 1892666 CVE-2020-25211 Tenable has extracted the preceding description...

Medium: kernel-livepatch-4.14.193-149.317

Issue Overview: A flaw was found in the Linux kernel. A local attacker, able to inject conntrack netlink configuration, could overflow a local buffer causing crashes or triggering the use of incorrect protocol numbers in ctnetlinkparsetuplefilter in net/netfilter/nfconntracknetlink.c. The highest...

Medium: kernel-livepatch-4.14.192-147.314

Issue Overview: A flaw was found in the Linux kernel. A local attacker, able to inject conntrack netlink configuration, could overflow a local buffer causing crashes or triggering the use of incorrect protocol numbers in ctnetlinkparsetuplefilter in net/netfilter/nfconntracknetlink.c. The highest...

Privilege Escalation

v86d is vulnerable to arbitrary code execution. Netlink messages are not verified to be sent by the kernel. This could allow unprivileged users to manipulate the video mode and potentially obtain additional privileges...

Denial Of Service (DoS)

Linux kernel is vulnerable to denial of service. Local attackers are able to inject conntrack netlink configuration to overflow a local buffer and cause a crash in ctnetlinkparsetuplefilter in net/netfilter/nfconntracknetlink.c...

USN-4658-1 linux, linux-aws, linux-aws-5.4, linux-azure, linux-azure-5.4, linux-gcp, linux-gcp-5.4, linux-hwe-5.4, linux-kvm, linux-oracle, linux-oracle-5.4, linux-raspi, linux-raspi-5.4 vulnerabilities

It was discovered that a race condition existed in the binder IPC implementation in the Linux kernel, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service system crash or possibly execute arbitrary code. CVE-2020-0423 Daniele Antonioli, Nils Ole...

USN-4657-1 linux, linux-aws, linux-azure, linux-kvm, linux-lts-trusty, linux-raspi2, linux-snapdragon vulnerabilities

Elena Petrova discovered that the pin controller device tree implementation in the Linux kernel did not properly handle string references. A local attacker could use this to expose sensitive information kernel memory. CVE-2020-0427 Daniele Antonioli, Nils Ole Tippenhauer, and Kasper Rasmussen...

Amazon Linux AMI : kernel (ALAS-2020-1446)

The version of kernel installed on the remote host is prior to 4.14.203-116.332. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS-2020-1446 advisory. In binderreleasework of binder.c, there is a possible use-after-free due to improper locking. This could lead to...

Insufficient Permission Check

SELinux LSM is vulnerable to incorrect permission check. Incorrect validations in netlink messages allows permission check bypass...

kernel: SELinux netlink permission check bypass

A flaw was found in the Linux kernel’s SELinux LSM hook implementation, where it anticipated the skb would only contain a single Netlink message. The hook incorrectly validated the first Netlink message in the skb only, to allow or deny the rest of the messages within the skb with the granted...

kernel: SELinux netlink permission check bypass

A flaw was found in the Linux kernel’s SELinux LSM hook implementation, where it anticipated the skb would only contain a single Netlink message. The hook incorrectly validated the first Netlink message in the skb only, to allow or deny the rest of the messages within the skb with the granted...

RHEL 8 : kernel-rt (RHSA-2020:4609)

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2020:4609 advisory. The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirement...

Moderate: kernel security, bug fix, and enhancement update

The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fixes: kernel: use after free in the video driver leads to local privilege escalation CVE-2019-9458 kernel: use-after-free in drivers/bluetooth/hcildisc.c CVE-2019-15917 kernel: out-of-bounds access in...

[SECURITY] [DLA 2417-1] linux-4.19 security update

Debian LTS Advisory DLA-2417-1 [email protected] https://www.debian.org/lts/security/ Ben Hutchings October 27, 2020 https://wiki.debian.org/LTS Package : linux-4.19 Version : 4.19.152-1deb9u1 CVE ID : CVE-2020-12351 CVE-2020-12352 CVE-2020-25211 CVE-2020-25643 CVE-2020-25645 Debian Bug...

dbus security update

1:1.10.24-15.0.1 - fix netlink poll: error 4 Zhenzhong Duan 1:1.10.24-15 - Fix CVE-2020-12049 1851992...

Amazon Linux 2 : kernel (ALAS-2020-1495)

The version of kernel installed on the remote host is prior to 4.14.198-152.320. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2-2020-1495 advisory. In the Linux kernel 5.0.21 and 5.3.11, mounting a crafted btrfs filesystem image, performing some operations, and...

kernel: SELinux netlink permission check bypass

A flaw was found in the Linux kernel’s SELinux LSM hook implementation, where it anticipated the skb would only contain a single Netlink message. The hook incorrectly validated the first Netlink message in the skb only, to allow or deny the rest of the messages within the skb with the granted...

kernel: SELinux netlink permission check bypass

A flaw was found in the Linux kernel’s SELinux LSM hook implementation, where it anticipated the skb would only contain a single Netlink message. The hook incorrectly validated the first Netlink message in the skb only, to allow or deny the rest of the messages within the skb with the granted...

In the Linux kernel through 5.8.7 local attackers able to inject conntrack netlink configuration could overflow a local buffer causing crashes or triggering use of incorrect protocol numbers in ctnetlink_parse_tuple_filter in net/netfilter/nf_conntrack_netlink.c aka CID-1cc5ef91d2ff.

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