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CVE-2023-1206

Status Candidate

Overview

A hash collision flaw was found in the IPv6 connection lookup table in the Linux kernel’s IPv6 functionality when a user makes a new kind of SYN flood attack. A user located in the local network or with a high bandwidth connection can increase the CPU usage of the server that accepts IPV6 connections up to 95%.

Related Files

Ubuntu Security Notice USN-6466-1
Posted Nov 13, 2023
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 6466-1 - Hyunwoo Kim discovered that the DVB Core driver in the Linux kernel contained a race condition during device removal, leading to a use-after- free vulnerability. A physically proximate attacker could use this to cause a denial of service or possibly execute arbitrary code. Hyunwoo Kim discovered that the Technotrend/Hauppauge USB DEC driver in the Linux kernel did not properly handle device removal events. A physically proximate attacker could use this to cause a denial of service.

tags | advisory, denial of service, arbitrary, kernel
systems | linux, ubuntu
advisories | CVE-2022-45886, CVE-2022-45887, CVE-2022-48425, CVE-2023-1206, CVE-2023-20569, CVE-2023-20588, CVE-2023-21264, CVE-2023-2156, CVE-2023-31083, CVE-2023-3212, CVE-2023-34319, CVE-2023-3772, CVE-2023-38427, CVE-2023-38430
SHA-256 | d231e9eb22491a28681d89631f3af4b06d452c694529f3f61e5a1f1f2333a3c8
Ubuntu Security Notice USN-6460-1
Posted Oct 31, 2023
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 6460-1 - It was discovered that the IPv6 implementation in the Linux kernel contained a high rate of hash collisions in connection lookup table. A remote attacker could use this to cause a denial of service. It was discovered that the Broadcom FullMAC USB WiFi driver in the Linux kernel did not properly perform data buffer size validation in some situations. A physically proximate attacker could use this to craft a malicious USB device that when inserted, could cause a denial of service or possibly expose sensitive information.

tags | advisory, remote, denial of service, kernel
systems | linux, ubuntu
advisories | CVE-2023-1206, CVE-2023-1380, CVE-2023-31436, CVE-2023-35001, CVE-2023-42752, CVE-2023-42755, CVE-2023-4623
SHA-256 | ccc14e1e2347798994b0336a3ccd2a0a1c44b24485ea7d3488a8ff85109c2c43
Ubuntu Security Notice USN-6445-2
Posted Oct 24, 2023
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 6445-2 - It was discovered that the IPv6 implementation in the Linux kernel contained a high rate of hash collisions in connection lookup table. A remote attacker could use this to cause a denial of service. Daniel Trujillo, Johannes Wikner, and Kaveh Razavi discovered that some AMD processors utilising speculative execution and branch prediction may allow unauthorised memory reads via a speculative side-channel attack. A local attacker could use this to expose sensitive information, including kernel memory.

tags | advisory, remote, denial of service, kernel, local
systems | linux, ubuntu
advisories | CVE-2023-1206, CVE-2023-20569, CVE-2023-2156, CVE-2023-3338, CVE-2023-34319, CVE-2023-38432, CVE-2023-3863, CVE-2023-3865, CVE-2023-3866, CVE-2023-4132, CVE-2023-4155, CVE-2023-4194, CVE-2023-4244, CVE-2023-4273
SHA-256 | 7161886f27ce432ad514954dd1b3c798e3d98a8a29d07d4592bcf71aae1d37df
Ubuntu Security Notice USN-6439-2
Posted Oct 24, 2023
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 6439-2 - It was discovered that the IPv6 implementation in the Linux kernel contained a high rate of hash collisions in connection lookup table. A remote attacker could use this to cause a denial of service. Yu Hao and Weiteng Chen discovered that the Bluetooth HCI UART driver in the Linux kernel contained a race condition, leading to a null pointer dereference vulnerability. A local attacker could use this to cause a denial of service.

tags | advisory, remote, denial of service, kernel, local
systems | linux, ubuntu
advisories | CVE-2023-1206, CVE-2023-31083, CVE-2023-34319, CVE-2023-3772, CVE-2023-42752, CVE-2023-42753, CVE-2023-42755, CVE-2023-4622, CVE-2023-4623, CVE-2023-4881, CVE-2023-4921
SHA-256 | 2fd25e40051d1ba2bbf46094a9e3c568101d4401e9c1c5f7d1348688c66cd0a2
Ubuntu Security Notice USN-6440-2
Posted Oct 20, 2023
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 6440-2 - Seth Jenkins discovered that the Linux kernel did not properly perform address randomization for a per-cpu memory management structure. A local attacker could use this to expose sensitive information or in conjunction with another kernel vulnerability. It was discovered that the IPv6 implementation in the Linux kernel contained a high rate of hash collisions in connection lookup table. A remote attacker could use this to cause a denial of service.

tags | advisory, remote, denial of service, kernel, local
systems | linux, ubuntu
advisories | CVE-2023-0597, CVE-2023-1206, CVE-2023-31083, CVE-2023-34319, CVE-2023-3772, CVE-2023-42752, CVE-2023-42753, CVE-2023-42755, CVE-2023-4622, CVE-2023-4623, CVE-2023-4881, CVE-2023-4921
SHA-256 | 53dde989c721b58c0ab2a8afed3fd49eb8bd3b0589646a03c93ff63b342aa7dd
Ubuntu Security Notice USN-6445-1
Posted Oct 20, 2023
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 6445-1 - It was discovered that the IPv6 implementation in the Linux kernel contained a high rate of hash collisions in connection lookup table. A remote attacker could use this to cause a denial of service. Daniel Trujillo, Johannes Wikner, and Kaveh Razavi discovered that some AMD processors utilising speculative execution and branch prediction may allow unauthorised memory reads via a speculative side-channel attack. A local attacker could use this to expose sensitive information, including kernel memory.

tags | advisory, remote, denial of service, kernel, local
systems | linux, ubuntu
advisories | CVE-2023-1206, CVE-2023-20569, CVE-2023-2156, CVE-2023-3338, CVE-2023-34319, CVE-2023-38432, CVE-2023-3863, CVE-2023-3865, CVE-2023-3866, CVE-2023-4132, CVE-2023-4155, CVE-2023-4194, CVE-2023-4244, CVE-2023-4273
SHA-256 | e6b24dd74615cc6c00bd4c9686d9c6103de24a03be2c7b72a6caee0cd088dc72
Ubuntu Security Notice USN-6440-1
Posted Oct 20, 2023
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 6440-1 - Seth Jenkins discovered that the Linux kernel did not properly perform address randomization for a per-cpu memory management structure. A local attacker could use this to expose sensitive information or in conjunction with another kernel vulnerability. It was discovered that the IPv6 implementation in the Linux kernel contained a high rate of hash collisions in connection lookup table. A remote attacker could use this to cause a denial of service.

tags | advisory, remote, denial of service, kernel, local
systems | linux, ubuntu
advisories | CVE-2023-0597, CVE-2023-1206, CVE-2023-31083, CVE-2023-34319, CVE-2023-3772, CVE-2023-42752, CVE-2023-42753, CVE-2023-42755, CVE-2023-4622, CVE-2023-4623, CVE-2023-4881, CVE-2023-4921
SHA-256 | 598cc5d139a12c8f709abd7b1310edc18543d27b190ad6ec74fe1916b728621c
Ubuntu Security Notice USN-6439-1
Posted Oct 20, 2023
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 6439-1 - It was discovered that the IPv6 implementation in the Linux kernel contained a high rate of hash collisions in connection lookup table. A remote attacker could use this to cause a denial of service. Yu Hao and Weiteng Chen discovered that the Bluetooth HCI UART driver in the Linux kernel contained a race condition, leading to a null pointer dereference vulnerability. A local attacker could use this to cause a denial of service.

tags | advisory, remote, denial of service, kernel, local
systems | linux, ubuntu
advisories | CVE-2023-1206, CVE-2023-31083, CVE-2023-34319, CVE-2023-3772, CVE-2023-42752, CVE-2023-42753, CVE-2023-42755, CVE-2023-4622, CVE-2023-4623, CVE-2023-4881, CVE-2023-4921
SHA-256 | 72f14266ef2dab28b735ecdb9a984376148d27762c1aaf7bfb59ca14bddaaab9
Ubuntu Security Notice USN-6416-3
Posted Oct 20, 2023
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 6416-3 - It was discovered that the IPv6 implementation in the Linux kernel contained a high rate of hash collisions in connection lookup table. A remote attacker could use this to cause a denial of service. Daniel Trujillo, Johannes Wikner, and Kaveh Razavi discovered that some AMD processors utilising speculative execution and branch prediction may allow unauthorised memory reads via a speculative side-channel attack. A local attacker could use this to expose sensitive information, including kernel memory.

tags | advisory, remote, denial of service, kernel, local
systems | linux, ubuntu
advisories | CVE-2023-1206, CVE-2023-20569, CVE-2023-2156, CVE-2023-3338, CVE-2023-38432, CVE-2023-3863, CVE-2023-3865, CVE-2023-3866, CVE-2023-4132, CVE-2023-4155, CVE-2023-4194, CVE-2023-4273, CVE-2023-44466
SHA-256 | 7a887816f9107b60df8541b3552c4aaff017ce7bcb38a20efdd9a941ee1a370e
Red Hat Security Advisory 2023-5604-01
Posted Oct 11, 2023
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2023-5604-01 - The kernel packages contain the Linux kernel, the core of any Linux operating system. Issues addressed include denial of service, out of bounds write, and use-after-free vulnerabilities.

tags | advisory, denial of service, kernel, vulnerability
systems | linux, redhat
advisories | CVE-2023-1206
SHA-256 | d38198d09c153dc304334598733dfb3495b0b3654434da84b6140dc93cc8e7b3
Red Hat Security Advisory 2023-5603-01
Posted Oct 11, 2023
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2023-5603-01 - The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements. Issues addressed include denial of service, out of bounds write, and use-after-free vulnerabilities.

tags | advisory, denial of service, kernel, vulnerability
systems | linux, redhat
advisories | CVE-2023-1206
SHA-256 | 33c979a04ac08d5d0608a47384b787e2183d65ba3e35cc55c98f61f6f7988093
Ubuntu Security Notice USN-6416-2
Posted Oct 6, 2023
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 6416-2 - It was discovered that the IPv6 implementation in the Linux kernel contained a high rate of hash collisions in connection lookup table. A remote attacker could use this to cause a denial of service. Daniƫl Trujillo, Johannes Wikner, and Kaveh Razavi discovered that some AMD processors utilising speculative execution and branch prediction may allow unauthorised memory reads via a speculative side-channel attack. A local attacker could use this to expose sensitive information, including kernel memory.

tags | advisory, remote, denial of service, kernel, local
systems | linux, ubuntu
advisories | CVE-2023-1206, CVE-2023-20569, CVE-2023-2156, CVE-2023-3338, CVE-2023-38432, CVE-2023-3863, CVE-2023-3865, CVE-2023-3866, CVE-2023-4132, CVE-2023-4155, CVE-2023-4194, CVE-2023-4273, CVE-2023-44466
SHA-256 | b063e3f6be8c77181b424a0cfdc4405df776762ca5688f781a192b755ad403a0
Ubuntu Security Notice USN-6417-1
Posted Oct 5, 2023
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 6417-1 - It was discovered that the eBPF implementation in the Linux kernel contained a race condition around read-only maps. A privileged attacker could use this to modify read-only maps. It was discovered that the IPv6 implementation in the Linux kernel contained a high rate of hash collisions in connection lookup table. A remote attacker could use this to cause a denial of service.

tags | advisory, remote, denial of service, kernel
systems | linux, ubuntu
advisories | CVE-2021-4001, CVE-2023-1206, CVE-2023-3212, CVE-2023-3338, CVE-2023-3863, CVE-2023-4194
SHA-256 | c26238a5fdacf3ea9d3afd0da623a96b6fd205a4238fb6b5c63f66ebabb02fb1
Ubuntu Security Notice USN-6416-1
Posted Oct 5, 2023
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 6416-1 - It was discovered that the IPv6 implementation in the Linux kernel contained a high rate of hash collisions in connection lookup table. A remote attacker could use this to cause a denial of service. Daniel Trujillo, Johannes Wikner, and Kaveh Razavi discovered that some AMD processors utilising speculative execution and branch prediction may allow unauthorised memory reads via a speculative side-channel attack. A local attacker could use this to expose sensitive information, including kernel memory.

tags | advisory, remote, denial of service, kernel, local
systems | linux, ubuntu
advisories | CVE-2023-1206, CVE-2023-20569, CVE-2023-2156, CVE-2023-3338, CVE-2023-38432, CVE-2023-3863, CVE-2023-3865, CVE-2023-3866, CVE-2023-4132, CVE-2023-4155, CVE-2023-4194, CVE-2023-4273, CVE-2023-44466
SHA-256 | 331f2ead28b7e52720b6f311fc3698392b6dd99793aaafc88fa16cf568162c17
Ubuntu Security Notice USN-6412-1
Posted Oct 5, 2023
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 6412-1 - Hyunwoo Kim discovered that the DVB Core driver in the Linux kernel contained a race condition during device removal, leading to a use-after- free vulnerability. A physically proximate attacker could use this to cause a denial of service or possibly execute arbitrary code. Hyunwoo Kim discovered that the Technotrend/Hauppauge USB DEC driver in the Linux kernel did not properly handle device removal events. A physically proximate attacker could use this to cause a denial of service.

tags | advisory, denial of service, arbitrary, kernel
systems | linux, ubuntu
advisories | CVE-2022-45886, CVE-2022-45887, CVE-2022-48425, CVE-2023-1206, CVE-2023-20569, CVE-2023-2156, CVE-2023-3212, CVE-2023-38427, CVE-2023-38431, CVE-2023-4155, CVE-2023-4194, CVE-2023-4273
SHA-256 | eef2bb4192be147f56bfdab3849d216add0a381c00e18c6ca3934a0f72c58c02
Ubuntu Security Notice USN-6385-1
Posted Sep 20, 2023
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 6385-1 - It was discovered that some AMD x86-64 processors with SMT enabled could speculatively execute instructions using a return address from a sibling thread. A local attacker could possibly use this to expose sensitive information. William Zhao discovered that the Traffic Control subsystem in the Linux kernel did not properly handle network packet retransmission in certain situations. A local attacker could use this to cause a denial of service.

tags | advisory, denial of service, x86, kernel, local
systems | linux, ubuntu
advisories | CVE-2022-27672, CVE-2022-4269, CVE-2023-0458, CVE-2023-1075, CVE-2023-1076, CVE-2023-1206, CVE-2023-1380, CVE-2023-1611, CVE-2023-2002, CVE-2023-20593, CVE-2023-2162, CVE-2023-2163, CVE-2023-2235, CVE-2023-2269
SHA-256 | 397aabee4166381c7e45af794aab5e2f5ce22baf3c0ee09c03c9b743ea1a8b5f
Debian Security Advisory 5492-1
Posted Sep 11, 2023
Authored by Debian | Site debian.org

Debian Linux Security Advisory 5492-1 - Several vulnerabilities have been discovered in the Linux kernel that may lead to a privilege escalation, denial of service or information leaks.

tags | advisory, denial of service, kernel, vulnerability
systems | linux, debian
advisories | CVE-2023-1206, CVE-2023-1989, CVE-2023-20588, CVE-2023-2430, CVE-2023-2898, CVE-2023-34319, CVE-2023-3611, CVE-2023-3772, CVE-2023-3773, CVE-2023-3776, CVE-2023-3777, CVE-2023-3863, CVE-2023-4004, CVE-2023-4015
SHA-256 | 60277f2faef1ae1013aaa8886111d7c6bc6dc369ef63d5538109f991fe7534ea
Ubuntu Security Notice USN-6343-1
Posted Sep 6, 2023
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 6343-1 - It was discovered that the IPv6 implementation in the Linux kernel contained a high rate of hash collisions in connection lookup table. A remote attacker could use this to cause a denial of service. Ross Lagerwall discovered that the Xen netback backend driver in the Linux kernel did not properly handle certain unusual packets from a paravirtualized network frontend, leading to a buffer overflow. An attacker in a guest VM could use this to cause a denial of service or possibly execute arbitrary code.

tags | advisory, remote, denial of service, overflow, arbitrary, kernel
systems | linux, ubuntu
advisories | CVE-2023-1206, CVE-2023-34319, CVE-2023-40283, CVE-2023-4128, CVE-2023-4155, CVE-2023-4194, CVE-2023-4273
SHA-256 | 7110047976f0ec67dc61de4540495873aa7a04b2a42b9e6129b9fe9d882af93f
Debian Security Advisory 5480-1
Posted Aug 21, 2023
Authored by Debian | Site debian.org

Debian Linux Security Advisory 5480-1 - Several vulnerabilities have been discovered in the Linux kernel that may lead to a privilege escalation, denial of service or information leaks.

tags | advisory, denial of service, kernel, vulnerability
systems | linux, debian
advisories | CVE-2022-39189, CVE-2022-4269, CVE-2023-1206, CVE-2023-1380, CVE-2023-2002, CVE-2023-2007, CVE-2023-20588, CVE-2023-2124, CVE-2023-21255, CVE-2023-21400, CVE-2023-2269, CVE-2023-2898, CVE-2023-3090, CVE-2023-31084
SHA-256 | 41dc7825fce5df5966134dc369b0fdabc89599073025de78f75ae2cf98e6b9a8
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