Description
An out-of-bounds write vulnerability in the Linux kernel's net/sched: sch_qfq component can be exploited to achieve local privilege escalation.

The qfq_change_agg() function in net/sched/sch_qfq.c allows an out-of-bounds write because lmax is updated according to packet sizes without bounds checks.

We recommend upgrading past commit 3e337087c3b5805fe0b8a46ba622a962880b5d64.
Published: 2023-07-21
Score: 7.8 High
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

Analysis and contextual insights are available on OpenCVE Cloud.

Remediation

No vendor fix or workaround currently provided.

Additional remediation guidance may be available on OpenCVE Cloud.

Tracking

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Advisories
Source ID Title
Debian DLA Debian DLA DLA-3623-1 linux-5.10 security update
Debian DLA Debian DLA DLA-3710-1 linux security update
Debian DSA Debian DSA DSA-5480-1 linux security update
Debian DSA Debian DSA DSA-5492-1 linux security update
EUVD EUVD EUVD-2023-44260 An out-of-bounds write vulnerability in the Linux kernel's net/sched: sch_qfq component can be exploited to achieve local privilege escalation. The qfq_change_agg() function in net/sched/sch_qfq.c allows an out-of-bounds write because lmax is updated according to packet sizes without bounds checks. We recommend upgrading past commit 3e337087c3b5805fe0b8a46ba622a962880b5d64.
Ubuntu USN Ubuntu USN USN-6285-1 Linux kernel (OEM) vulnerabilities
Ubuntu USN Ubuntu USN USN-6309-1 Linux kernel vulnerabilities
Ubuntu USN Ubuntu USN USN-6315-1 Linux kernel vulnerabilities
Ubuntu USN Ubuntu USN USN-6317-1 Linux kernel vulnerabilities
Ubuntu USN Ubuntu USN USN-6318-1 Linux kernel vulnerabilities
Ubuntu USN Ubuntu USN USN-6321-1 Linux kernel vulnerabilities
Ubuntu USN Ubuntu USN USN-6324-1 Linux kernel (GKE) vulnerabilities
Ubuntu USN Ubuntu USN USN-6325-1 Linux kernel vulnerabilities
Ubuntu USN Ubuntu USN USN-6327-1 Linux kernel (KVM) vulnerabilities
Ubuntu USN Ubuntu USN USN-6328-1 Linux kernel (Oracle) vulnerabilities
Ubuntu USN Ubuntu USN USN-6329-1 Linux kernel vulnerabilities
Ubuntu USN Ubuntu USN USN-6330-1 Linux kernel (GCP) vulnerabilities
Ubuntu USN Ubuntu USN USN-6331-1 Linux kernel (Azure) vulnerabilities
Ubuntu USN Ubuntu USN USN-6332-1 Linux kernel (Azure) vulnerabilities
Ubuntu USN Ubuntu USN USN-6341-1 Linux kernel vulnerabilities
Ubuntu USN Ubuntu USN USN-6342-1 Linux kernel vulnerabilities
Ubuntu USN Ubuntu USN USN-6342-2 Linux kernel (Azure)
Ubuntu USN Ubuntu USN USN-6346-1 Linux kernel (Raspberry Pi) vulnerabilities
Ubuntu USN Ubuntu USN USN-6348-1 Linux kernel vulnerabilities
Ubuntu USN Ubuntu USN USN-6357-1 Linux kernel (IBM) vulnerabilities
Ubuntu USN Ubuntu USN USN-6385-1 Linux kernel (OEM) vulnerabilities
Ubuntu USN Ubuntu USN USN-6397-1 Linux kernel (BlueField) vulnerabilities
History

Thu, 13 Feb 2025 17:00:00 +0000

Type Values Removed Values Added
Description An out-of-bounds write vulnerability in the Linux kernel's net/sched: sch_qfq component can be exploited to achieve local privilege escalation. The qfq_change_agg() function in net/sched/sch_qfq.c allows an out-of-bounds write because lmax is updated according to packet sizes without bounds checks. We recommend upgrading past commit 3e337087c3b5805fe0b8a46ba622a962880b5d64. An out-of-bounds write vulnerability in the Linux kernel's net/sched: sch_qfq component can be exploited to achieve local privilege escalation. The qfq_change_agg() function in net/sched/sch_qfq.c allows an out-of-bounds write because lmax is updated according to packet sizes without bounds checks. We recommend upgrading past commit 3e337087c3b5805fe0b8a46ba622a962880b5d64.

Fri, 27 Sep 2024 14:30:00 +0000

Type Values Removed Values Added
First Time appeared Linux kernel
CPEs cpe:2.3:o:linux:kernel:*:*:*:*:*:*:*:*
Vendors & Products Linux kernel
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Subscriptions

Debian Debian Linux
Linux Kernel Linux Kernel
Redhat Enterprise Linux Rhel Aus Rhel E4s Rhel Els Rhel Eus Rhel Extras Rt Rhel Tus Rhev Hypervisor
cve-icon MITRE

Status: PUBLISHED

Assigner: Google

Published:

Updated: 2025-02-13T16:56:15.625Z

Reserved: 2023-07-10T20:52:55.365Z

Link: CVE-2023-3611

cve-icon Vulnrichment

Updated: 2024-08-02T07:01:57.288Z

cve-icon NVD

Status : Modified

Published: 2023-07-21T21:15:11.897

Modified: 2025-02-13T17:16:58.047

Link: CVE-2023-3611

cve-icon Redhat

Severity : Important

Publid Date: 2023-07-21T00:00:00Z

Links: CVE-2023-3611 - Bugzilla

cve-icon OpenCVE Enrichment

No data.

Weaknesses