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CVE-2023-1583

Status Candidate

Overview

A NULL pointer dereference was found in io_file_bitmap_get in io_uring/filetable.c in the io_uring sub-component in the Linux Kernel. When fixed files are unregistered, some context information (file_alloc_{start,end} and alloc_hint) is not cleared. A subsequent request that has auto index selection enabled via IORING_FILE_INDEX_ALLOC can cause a NULL pointer dereference. An unprivileged user can use the flaw to cause a system crash.

Related Files

Ubuntu Security Notice USN-6186-1
Posted Jun 23, 2023
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 6186-1 - Patryk Sondej and Piotr Krysiuk discovered that a race condition existed in the netfilter subsystem of the Linux kernel when processing batch requests, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service or possibly execute arbitrary code. Gwangun Jung discovered that the Quick Fair Queueing scheduler implementation in the Linux kernel contained an out-of-bounds write vulnerability. 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
systems | linux, ubuntu
advisories | CVE-2022-4269, CVE-2023-1380, CVE-2023-1583, CVE-2023-1611, CVE-2023-1670, CVE-2023-1855, CVE-2023-1859, CVE-2023-1989, CVE-2023-1990, CVE-2023-2194, CVE-2023-2235, CVE-2023-2612, CVE-2023-28466, CVE-2023-28866
SHA-256 | 852bc0984d64527371695ee9feac0d312b46b12c591411f7a5be5f0ffb1c93a2
Ubuntu Security Notice USN-6175-1
Posted Jun 19, 2023
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 6175-1 - Patryk Sondej and Piotr Krysiuk discovered that a race condition existed in the netfilter subsystem of the Linux kernel when processing batch requests, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service or possibly execute arbitrary code. Gwangun Jung discovered that the Quick Fair Queueing scheduler implementation in the Linux kernel contained an out-of-bounds write vulnerability. 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
systems | linux, ubuntu
advisories | CVE-2022-4269, CVE-2023-1380, CVE-2023-1583, CVE-2023-1611, CVE-2023-1670, CVE-2023-1855, CVE-2023-1859, CVE-2023-1989, CVE-2023-1990, CVE-2023-2194, CVE-2023-2235, CVE-2023-2612, CVE-2023-28466, CVE-2023-28866
SHA-256 | 8d2750e78e3f34d550c35335528e9e223f031e2f6d9e0cec905fe85512526c34
Ubuntu Security Notice USN-6033-1
Posted Apr 20, 2023
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 6033-1 - It was discovered that the Traffic-Control Index implementation in the Linux kernel did not properly perform filter deactivation in some situations. A local attacker could possibly use this to gain elevated privileges. Please note that with the fix for thisCVE, kernel support for the TCINDEX classifier has been removed. 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, kernel, local
systems | linux, ubuntu
advisories | CVE-2022-4269, CVE-2023-1032, CVE-2023-1076, CVE-2023-1077, CVE-2023-1079, CVE-2023-1118, CVE-2023-1583, CVE-2023-1670, CVE-2023-1829, CVE-2023-1855, CVE-2023-1989, CVE-2023-1990, CVE-2023-1998, CVE-2023-25012
SHA-256 | 5a30980fd0cd1ca4d29c020630f7aeac282e7c27dca316f9119d20f043479ba7
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