CVE-2023-52493 - OpenCVE

In the Linux kernel, the following vulnerability has been resolved: bus: mhi: host: Drop chan lock before queuing buffers Ensure read and write locks for the channel are not taken in succession by dropping the read lock from parse_xfer_event() such that a callback given to client can potentially queue buffers and acquire the write lock in that process. Any queueing of buffers should be done without channel read lock acquired as it can result in multiple locks and a soft lockup. [mani: added fixes tag and cc'ed stable]

No CVSS v4.0

Attack Vector Local

Attack Complexity Low

Privileges Required High

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Exploitation none

Automatable no

Technical Impact partial

No data.

No data.

No data.

References

Link	Providers
https://git.kernel.org/stable/c/01bd694ac2f682fb8017e16148b928482bc8fa4b
https://git.kernel.org/stable/c/20a6dea2d1c68d4e03c6bb50bc12e72e226b5c0e
https://git.kernel.org/stable/c/3c5ec66b4b3f6816f3a6161538672e389e537690
https://git.kernel.org/stable/c/6e4c84316e2b70709f0d00c33ba3358d9fc8eece
https://git.kernel.org/stable/c/b8eff20d87092e14cac976d057cb0aea2f1d0830
https://git.kernel.org/stable/c/eaefb9464031215d63c0a8a7e2bfaa00736aa17e
https://lore.kernel.org/linux-cve-announce/20240229155245.1571576-34-lee@kernel.org/T
https://nvd.nist.gov/vuln/detail/CVE-2023-52493
https://www.cve.org/CVERecord?id=CVE-2023-52493

History

Mon, 04 Nov 2024 13:45:00 +0000

Type	Values Removed	Values Added
References	https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html

MITRE

Status: PUBLISHED

Assigner: Linux

Published: 2024-02-29T15:52:11.074Z

Updated: 2024-11-04T14:47:56.233Z

Reserved: 2024-02-20T12:30:33.304Z

Link: CVE-2023-52493

Vulnrichment

Updated: 2024-08-02T23:03:20.707Z

NVD

Status : Awaiting Analysis

Published: 2024-03-11T18:15:16.940

Modified: 2024-11-04T13:16:35.103

Link: CVE-2023-52493

Redhat

Severity : Moderate

Publid Date: 2024-02-29T00:00:00Z

Links: CVE-2023-52493 - Bugzilla

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{"bugzilla": {"description": "kernel: bus: mhi: host: Drop chan lock before queuing buffers", "id": "2269181", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2269181"}, "csaw": false, "cvss3": {"cvss3_base_score": "4.4", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-414", "details": ["In the Linux kernel, the following vulnerability has been resolved:\nbus: mhi: host: Drop chan lock before queuing buffers\nEnsure read and write locks for the channel are not taken in succession by\ndropping the read lock from parse_xfer_event() such that a callback given\nto client can potentially queue buffers and acquire the write lock in that\nprocess. Any queueing of buffers should be done without channel read lock\nacquired as it can result in multiple locks and a soft lockup.\n[mani: added fixes tag and cc'ed stable]", "A flaw was found in the Linux Kernel. Read and write locks for the channel are taken in succession by dropping the read lock from parse_xfer_event(), such that a callback given to client can potentially queue buffers and acquire the write lock in that process. This can result in multiple locks and a soft lockup, leading to compromised Availability."], "name": "CVE-2023-52493", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2024-02-29T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2023-52493\nhttps://nvd.nist.gov/vuln/detail/CVE-2023-52493\nhttps://lore.kernel.org/linux-cve-announce/20240229155245.1571576-34-lee@kernel.org/T"], "statement": "No Red Hat products are affected by this vulnerability.", "threat_severity": "Moderate", "upstream_fix": "kernel 5.10.210, kernel 5.15.149, kernel 6.1.76, kernel 6.6.15, kernel 6.7.3, kernel 6.8-rc1"}