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CVE-2021-22600

Status Candidate

Overview

A double free bug in packet_set_ring() in net/packet/af_packet.c can be exploited by a local user through crafted syscalls to escalate privileges or deny service. We recommend upgrading kernel past the effected versions or rebuilding past ec6af094ea28f0f2dda1a6a33b14cd57e36a9755

Related Files

Debian Security Advisory 5096-1
Posted Mar 28, 2022
Authored by Debian | Site debian.org

Debian Linux Security Advisory 5096-1 - 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-2020-29374, CVE-2020-36322, CVE-2021-20317, CVE-2021-20321, CVE-2021-20322, CVE-2021-22600, CVE-2021-28711, CVE-2021-28712, CVE-2021-28713, CVE-2021-28714, CVE-2021-28715, CVE-2021-28950, CVE-2021-3640, CVE-2021-3744
SHA-256 | 75c044bf4d2e418a7cc68e74ff3d6f180013990253cbe7731409a07b3b799fa7
Ubuntu Security Notice USN-5298-1
Posted Feb 22, 2022
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 5298-1 - It was discovered that the Packet network protocol implementation in the Linux kernel contained a double-free vulnerability. A local attacker could use this to cause a denial of service or possibly execute arbitrary code. J

tags | advisory, denial of service, arbitrary, kernel, local, protocol
systems | linux, ubuntu
advisories | CVE-2021-22600, CVE-2021-28714, CVE-2021-39685, CVE-2021-4083, CVE-2021-4155, CVE-2021-4202, CVE-2022-0330, CVE-2022-22942
SHA-256 | 09c5b3fccd425392b5367e56e1a647931c3ab62c1011ad7cd2bfc5d674d117af
Ubuntu Security Notice USN-5294-2
Posted Feb 22, 2022
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 5294-2 - It was discovered that the Packet network protocol implementation in the Linux kernel contained a double-free vulnerability. A local attacker could use this to cause a denial of service or possibly execute arbitrary code. Szymon Heidrich discovered that the USB Gadget subsystem in the Linux kernel did not properly restrict the size of control requests for certain gadget types, leading to possible out of bounds reads or writes. A local attacker could use this to cause a denial of service or possibly execute arbitrary code.

tags | advisory, denial of service, arbitrary, kernel, local, protocol
systems | linux, ubuntu
advisories | CVE-2021-22600, CVE-2021-39685, CVE-2021-4083, CVE-2021-4155, CVE-2021-4202, CVE-2021-43975, CVE-2022-0330, CVE-2022-22942
SHA-256 | 5105eb29948fcb5529fd8e2dd4f4213888887afb870b9269ae382729e9917fae
Ubuntu Security Notice USN-5295-2
Posted Feb 22, 2022
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 5295-2 - It was discovered that the Packet network protocol implementation in the Linux kernel contained a double-free vulnerability. A local attacker could use this to cause a denial of service or possibly execute arbitrary code. Jann Horn discovered a race condition in the Unix domain socket implementation in the Linux kernel that could result in a read-after-free. A local attacker could use this to cause a denial of service or possibly execute arbitrary code.

tags | advisory, denial of service, arbitrary, kernel, local, protocol
systems | linux, unix, ubuntu
advisories | CVE-2021-22600, CVE-2021-4083, CVE-2021-4155, CVE-2022-0330, CVE-2022-22942
SHA-256 | 6e16b06a5023be6ffa2a13a9d5e710e7e9884f26097c1fab4798cf891a79ce27
Ubuntu Security Notice USN-5295-1
Posted Feb 18, 2022
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 5295-1 - It was discovered that the Packet network protocol implementation in the Linux kernel contained a double-free vulnerability. A local attacker could use this to cause a denial of service or possibly execute arbitrary code. Jann Horn discovered a race condition in the Unix domain socket implementation in the Linux kernel that could result in a read-after-free. A local attacker could use this to cause a denial of service or possibly execute arbitrary code.

tags | advisory, denial of service, arbitrary, kernel, local, protocol
systems | linux, unix, ubuntu
advisories | CVE-2021-22600, CVE-2021-4083, CVE-2021-4155, CVE-2022-0330, CVE-2022-22942
SHA-256 | b547d8a973a224e901b06eaeedecd20d12b7bfbede9c1be88b6689532cb1a805
Ubuntu Security Notice USN-5294-1
Posted Feb 18, 2022
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 5294-1 - It was discovered that the Packet network protocol implementation in the Linux kernel contained a double-free vulnerability. A local attacker could use this to cause a denial of service or possibly execute arbitrary code. Szymon Heidrich discovered that the USB Gadget subsystem in the Linux kernel did not properly restrict the size of control requests for certain gadget types, leading to possible out of bounds reads or writes. A local attacker could use this to cause a denial of service or possibly execute arbitrary code.

tags | advisory, denial of service, arbitrary, kernel, local, protocol
systems | linux, ubuntu
advisories | CVE-2021-22600, CVE-2021-39685, CVE-2021-4083, CVE-2021-4155, CVE-2021-4202, CVE-2021-43975, CVE-2022-0330, CVE-2022-22942
SHA-256 | 1366df82d8fcd6815d5088e53ffe7f4c0a5200426d7806e8827105451bd46108
Ubuntu Security Notice USN-5266-1
Posted Feb 3, 2022
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 5266-1 - It was discovered that the Packet network protocol implementation in the Linux kernel contained a double-free vulnerability. A local attacker could use this to cause a denial of service or possibly execute arbitrary code. Luo Likang discovered that the FireDTV Firewire driver in the Linux kernel did not properly perform bounds checking in some situations. A local attacker could use this to cause a denial of service or possibly execute arbitrary code.

tags | advisory, denial of service, arbitrary, kernel, local, protocol
systems | linux, ubuntu
advisories | CVE-2021-22600, CVE-2021-42739
SHA-256 | 9ba4147ccb5d95d45a49f7b9e0eac111cb9c9b306758eaa6f87e04a0bcc1f34e
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