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CVE-2023-34324

Status Candidate

Overview

Closing of an event channel in the Linux kernel can result in a deadlock. This happens when the close is being performed in parallel to an unrelated Xen console action and the handling of a Xen console interrupt in an unprivileged guest. The closing of an event channel is e.g. triggered by removal of a paravirtual device on the other side. As this action will cause console messages to be issued on the other side quite often, the chance of triggering the deadlock is not neglectable. Note that 32-bit Arm-guests are not affected, as the 32-bit Linux kernel on Arm doesn't use queued-RW-locks, which are required to trigger the issue (on Arm32 a waiting writer doesn't block further readers to get the lock).

Related Files

Ubuntu Security Notice USN-6652-1
Posted Feb 26, 2024
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 6652-1 - Marek Marczykowski-Górecki discovered that the Xen event channel infrastructure implementation in the Linux kernel contained a race condition. An attacker in a guest VM could possibly use this to cause a denial of service. Zheng Wang discovered a use-after-free in the Renesas Ethernet AVB driver in the Linux kernel during device removal. A privileged attacker could use this to cause a denial of service.

tags | advisory, denial of service, kernel
systems | linux, ubuntu
advisories | CVE-2023-34324, CVE-2023-35827, CVE-2023-46813, CVE-2023-46862, CVE-2023-51780, CVE-2023-51781, CVE-2023-5972, CVE-2023-6176, CVE-2023-6531, CVE-2023-6622, CVE-2023-6915, CVE-2024-0565, CVE-2024-0582, CVE-2024-0641
SHA-256 | 4f6741e6cd2ec7ebe45095a33d68bec179ca45c931ff0896b24a5a24f2017966
Ubuntu Security Notice USN-6625-3
Posted Feb 20, 2024
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 6625-3 - Marek Marczykowski-Górecki discovered that the Xen event channel infrastructure implementation in the Linux kernel contained a race condition. An attacker in a guest VM could possibly use this to cause a denial of service. Zheng Wang discovered a use-after-free in the Renesas Ethernet AVB driver in the Linux kernel during device removal. A privileged attacker could use this to cause a denial of service.

tags | advisory, denial of service, kernel
systems | linux, ubuntu
advisories | CVE-2023-34324, CVE-2023-35827, CVE-2023-45863, CVE-2023-46343
SHA-256 | 52bdeffe5f0a9bcabf5888bdf230cc21b6b378f00b6361fdcb2347a717f725ef
Ubuntu Security Notice USN-6626-3
Posted Feb 16, 2024
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 6626-3 - Quentin Minster discovered that a race condition existed in the KSMBD implementation in the Linux kernel when handling sessions operations. A remote attacker could use this to cause a denial of service or possibly execute arbitrary code. Marek Marczykowski-Górecki discovered that the Xen event channel infrastructure implementation in the Linux kernel contained a race condition. An attacker in a guest VM could possibly use this to cause a denial of service.

tags | advisory, remote, denial of service, arbitrary, kernel
systems | linux, ubuntu
advisories | CVE-2023-32250, CVE-2023-32257, CVE-2023-34324, CVE-2023-35827, CVE-2023-46813, CVE-2023-6039, CVE-2023-6176, CVE-2023-6622, CVE-2024-0641
SHA-256 | c4f05b80ddac576aade0f7ae79e18a25f3e6427f2d9176a2bd74aec2add4db82
Ubuntu Security Notice USN-6628-2
Posted Feb 15, 2024
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 6628-2 - Quentin Minster discovered that a race condition existed in the KSMBD implementation in the Linux kernel when handling sessions operations. A remote attacker could use this to cause a denial of service or possibly execute arbitrary code. Marek Marczykowski-Górecki discovered that the Xen event channel infrastructure implementation in the Linux kernel contained a race condition. An attacker in a guest VM could possibly use this to cause a denial of service.

tags | advisory, remote, denial of service, arbitrary, kernel
systems | linux, ubuntu
advisories | CVE-2023-32250, CVE-2023-32257, CVE-2023-34324, CVE-2023-35827, CVE-2023-46813, CVE-2023-6039, CVE-2023-6040, CVE-2023-6176, CVE-2023-6606, CVE-2023-6622, CVE-2023-6817, CVE-2023-6931, CVE-2023-6932, CVE-2024-0193
SHA-256 | 8b210c8c777d4cc501999ec7007ed1d81cb230f6a188fd0f09171622aadeb0ba
Ubuntu Security Notice USN-6626-2
Posted Feb 14, 2024
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 6626-2 - Quentin Minster discovered that a race condition existed in the KSMBD implementation in the Linux kernel when handling sessions operations. A remote attacker could use this to cause a denial of service or possibly execute arbitrary code. Marek Marczykowski-Górecki discovered that the Xen event channel infrastructure implementation in the Linux kernel contained a race condition. An attacker in a guest VM could possibly use this to cause a denial of service.

tags | advisory, remote, denial of service, arbitrary, kernel
systems | linux, ubuntu
advisories | CVE-2023-32250, CVE-2023-32257, CVE-2023-34324, CVE-2023-35827, CVE-2023-46813, CVE-2023-6039, CVE-2023-6176, CVE-2023-6622, CVE-2024-0641
SHA-256 | f604bb78b46c5c78f8d5c3eebf5d47fd8329d33d9d972d5425768f75ed48b1e8
Ubuntu Security Notice USN-6628-1
Posted Feb 9, 2024
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 6628-1 - Quentin Minster discovered that a race condition existed in the KSMBD implementation in the Linux kernel when handling sessions operations. A remote attacker could use this to cause a denial of service or possibly execute arbitrary code. Marek Marczykowski-Górecki discovered that the Xen event channel infrastructure implementation in the Linux kernel contained a race condition. An attacker in a guest VM could possibly use this to cause a denial of service.

tags | advisory, remote, denial of service, arbitrary, kernel
systems | linux, ubuntu
advisories | CVE-2023-32250, CVE-2023-32257, CVE-2023-34324, CVE-2023-35827, CVE-2023-46813, CVE-2023-6039, CVE-2023-6040, CVE-2023-6176, CVE-2023-6606, CVE-2023-6622, CVE-2023-6817, CVE-2023-6931, CVE-2023-6932, CVE-2024-0193
SHA-256 | a52607ded902da64c49c773da7fa6fd61683abc0bc5e94297c83cad64b281932
Ubuntu Security Notice USN-6625-2
Posted Feb 9, 2024
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 6625-2 - Marek Marczykowski-Górecki discovered that the Xen event channel infrastructure implementation in the Linux kernel contained a race condition. An attacker in a guest VM could possibly use this to cause a denial of service. Zheng Wang discovered a use-after-free in the Renesas Ethernet AVB driver in the Linux kernel during device removal. A privileged attacker could use this to cause a denial of service.

tags | advisory, denial of service, kernel
systems | linux, ubuntu
advisories | CVE-2023-34324, CVE-2023-35827, CVE-2023-45863, CVE-2023-46343
SHA-256 | b66fd333f93de3d51bd80224f8e2d3a19cbfc05e73e64ee252cbdbc53d94990c
Ubuntu Security Notice USN-6626-1
Posted Feb 8, 2024
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 6626-1 - Quentin Minster discovered that a race condition existed in the KSMBD implementation in the Linux kernel when handling sessions operations. A remote attacker could use this to cause a denial of service or possibly execute arbitrary code. Marek Marczykowski-Górecki discovered that the Xen event channel infrastructure implementation in the Linux kernel contained a race condition. An attacker in a guest VM could possibly use this to cause a denial of service.

tags | advisory, remote, denial of service, arbitrary, kernel
systems | linux, ubuntu
advisories | CVE-2023-32250, CVE-2023-32257, CVE-2023-34324, CVE-2023-35827, CVE-2023-46813, CVE-2023-6039, CVE-2023-6176, CVE-2023-6622, CVE-2024-0641
SHA-256 | abb47a750300846b247f677ef4f175df1919ba753b831f8a512ec32984686bf4
Ubuntu Security Notice USN-6625-1
Posted Feb 8, 2024
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 6625-1 - Marek Marczykowski-Górecki discovered that the Xen event channel infrastructure implementation in the Linux kernel contained a race condition. An attacker in a guest VM could possibly use this to cause a denial of service. Zheng Wang discovered a use-after-free in the Renesas Ethernet AVB driver in the Linux kernel during device removal. A privileged attacker could use this to cause a denial of service.

tags | advisory, denial of service, kernel
systems | linux, ubuntu
advisories | CVE-2023-34324, CVE-2023-35827, CVE-2023-45863, CVE-2023-46343
SHA-256 | f216969201e4323ce6545b98d9b1f08db39bd8c3f06097ee0d2bd0d95e8ad152
Ubuntu Security Notice USN-6624-1
Posted Feb 8, 2024
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 6624-1 - Marek Marczykowski-Górecki discovered that the Xen event channel infrastructure implementation in the Linux kernel contained a race condition. An attacker in a guest VM could possibly use this to cause a denial of service. Zheng Wang discovered a use-after-free in the Renesas Ethernet AVB driver in the Linux kernel during device removal. A privileged attacker could use this to cause a denial of service.

tags | advisory, denial of service, kernel
systems | linux, ubuntu
advisories | CVE-2023-34324, CVE-2023-35827, CVE-2023-46813, CVE-2023-46862, CVE-2023-5972, CVE-2023-6176, CVE-2023-6531, CVE-2023-6622, CVE-2024-0641
SHA-256 | 49de6bcbab59db57c8569fdb52fe4ace1e46659088c4f8553a5f53c1edba44e5
Debian Security Advisory 5594-1
Posted Jan 3, 2024
Authored by Debian | Site debian.org

Debian Linux Security Advisory 5594-1 - 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-2021-44879, CVE-2023-25775, CVE-2023-34324, CVE-2023-35827, CVE-2023-45863, CVE-2023-46813, CVE-2023-46862, CVE-2023-5178, CVE-2023-51780, CVE-2023-51781, CVE-2023-51782, CVE-2023-5197, CVE-2023-5717, CVE-2023-6121
SHA-256 | 14c6c74cd19f5de7ddf98f535462c89656d00f4606e765c1a9e334df63a6e08f
Ubuntu Security Notice USN-6461-1
Posted Nov 13, 2023
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 6461-1 - Yu Hao discovered that the UBI driver in the Linux kernel did not properly check for MTD with zero erasesize during device attachment. A local privileged attacker could use this to cause a denial of service. Marek Marczykowski-Górecki discovered that the Xen event channel infrastructure implementation in the Linux kernel contained a race condition. An attacker in a guest VM could possibly use this to cause a denial of service.

tags | advisory, denial of service, kernel, local
systems | linux, ubuntu
advisories | CVE-2023-31085, CVE-2023-34324, CVE-2023-39189, CVE-2023-4244, CVE-2023-42754, CVE-2023-4921, CVE-2023-5345
SHA-256 | f8740a5eb1f34579bfa81fa7e581cd1a70b404dfe0f903ddc342a4642aaedf3f
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