bind9: KeyTrap - Extreme CPU consumption in DNSSEC validator

Processing specially crafted responses coming from DNSSEC-signed zones can lead to uncontrolled CPU usage, leading to a Denial of Service in the DNSSEC-validating resolver side. This vulnerability applies only for systems where DNSSEC validation is enabled...

Important: Red Hat Security Advisory: unbound security update

An update for unbound is now available for Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support, Red Hat Enterprise Linux 8.4 Telecommunications Update Service, and Red Hat Enterprise Linux 8.4 Update Services for SAP Solutions. Red Hat Product Security has rated this update as...

bind9: Preparing an NSEC3 closest encloser proof can exhaust CPU resources

A flaw was found in bind9. By flooding a DNSSEC resolver with responses coming from a DNSEC-signed zone using NSEC3, an attacker can lead the targeted resolver to a CPU exhaustion, further leading to a Denial of Service on the targeted host. This vulnerability applies only for systems where DNSSE...

jose-go: improper handling of highly compressed data

A vulnerability was found in Jose due to improper handling of highly compressed data. This issue could allow an attacker to send a JWE containing compressed data that uses large amounts of memory and CPU when decompressed by Decrypt or DecryptMulti...

bind9: Parsing large DNS messages may cause excessive CPU load

A flaw was found in the bind package. This issue may allow a remote attacker with no specific privileges to craft a specially long DNS message leading to an excessive and uncontrolled CPU usage, the server being unavailable, and a Denial of Service...

Important: Red Hat Security Advisory: bind security update

An update for bind is now available for Red Hat Enterprise Linux 9. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from the...

bind9: Preparing an NSEC3 closest encloser proof can exhaust CPU resources

A flaw was found in bind9. By flooding a DNSSEC resolver with responses coming from a DNSEC-signed zone using NSEC3, an attacker can lead the targeted resolver to a CPU exhaustion, further leading to a Denial of Service on the targeted host. This vulnerability applies only for systems where DNSSE...

kernel: bpf: cpumap: Fix memory leak in cpu_map_update_elem

In the Linux kernel, the following vulnerability has been resolved: bpf: cpumap: Fix memory leak in cpumapupdateelem Syzkaller reported a memory leak as follows: BUG: memory leak unreferenced object 0xff110001198ef748 size 192: comm "syz-executor.3", pid 17672, jiffies 4298118891 age 9.906s hex...

kernel: bpf, cpumap: Make sure kthread is running before map update returns

A race condition was found in the Linux kernel's BPF cpumap implementation in the kthread lifecycle management. A local user can trigger this issue by running XDP redirect operations when the per-CPU kthread is stopped prematurely before processing queued frames, causing the cleanup code to find ...

kernel: kernel: Denial of Service via memory leak in LRU hash maps

A flaw was found in the Linux kernel. A local user could exploit a memory leak vulnerability in the Least Recently Used LRU and LRUPERCPU hash maps. This occurs when the kernel allocates a new element during a map update but fails to release it if the hash table bucket cannot be locked. Repeated...

kernel: cpufreq: amd-pstate: fix global sysfs attribute type

In the Linux kernel, the following vulnerability has been resolved: cpufreq: amd-pstate: fix global sysfs attribute type In commit 3666062b87ec "cpufreq: amd-pstate: move to use busgetdevroot" the "amdpstate" attributes where moved from a dedicated kobject to the cpu root kobject. While the...

kernel: hwmon: (coretemp) Simplify platform device handling

A NULL pointer dereference flaw was found in the Linux kernel's coretemp hardware monitoring driver in the platform device handling logic. A local privileged user who disables driversautoprobe for the platform bus can trigger this issue by initiating CPU hotplug operations, causing the driver to...

kernel: firmware: arm_sdei: Fix sleep from invalid context BUG

In the Linux kernel, the following vulnerability has been resolved: firmware: armsdei: Fix sleep from invalid context BUG Running a preempt-rt v6.2-rc3-rt1 based kernel on an Ampere Altra triggers: BUG: sleeping function called from invalid context at kernel/locking/spinlockrt.c:46 inatomic: 0,...

kernel: virtio-vdpa: Fix cpumask memory leak in virtio_vdpa_find_vqs()

A memory leak was found in the virtio-vdpa driver. The cpumask allocated by createaffinitymasks is not freed before the function returns, causing a small memory leak each time virtqueues are set up...

SUSE CVE-2022-48642

In the Linux kernel, the following vulnerability has been resolved: netfilter: nftables: fix percpu memory leak at nftablesaddchain It seems to me that percpu memory for chain stats started leaking since commit 3bc158f8d0330f0a "netfilter: nftables: map basechain priority to hardware priority" wh...

Important: nghttp2

Issue Overview: nghttp2 is an implementation of the Hypertext Transfer Protocol version 2 in C. The nghttp2 library prior to version 1.61.0 keeps reading the unbounded number of HTTP/2 CONTINUATION frames even after a stream is reset to keep HPACK context in sync. This causes excessive CPU usage ...

Medium: jose

Issue Overview: latchset jose through version 11 allows attackers to cause a denial of service CPU consumption via a large p2c aka PBES2 Count value. CVE-2023-50967 Affected Packages: jose Note: This advisory is applicable to Amazon Linux 2 AL2 Core repository. Visit this FAQ section for the...

Medium: kernel

Issue Overview: A Speculative Race Condition SRC vulnerability that impacts modern CPU architectures supporting speculative execution related to Spectre V1 has been disclosed. An unauthenticated attacker can exploit this vulnerability to disclose arbitrary data from the CPU using race conditions ...

RHEL 8 : unbound (RHSA-2024:2587)

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2024:2587 advisory. The unbound packages provide a validating, recursive, and caching DNS or DNSSEC resolver. Security Fixes: bind9: KeyTrap - Extreme CPU...

Amazon Linux 2 : bind (ALAS-2024-2530)

The version of bind installed on the remote host is prior to 9.11.4-26.P2. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2-2024-2530 advisory. Certain DNSSEC aspects of the DNS protocol in RFC 4035 and related RFCs allow remote attackers to cause a denial of...