DEBIAN-CVE-2023-53516

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Source
https://security-tracker.debian.org/tracker/CVE-2023-53516
Import Source
https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2023-53516.json
JSON Data
https://api.osv.dev/v1/vulns/DEBIAN-CVE-2023-53516
Upstream
Published
2025-10-01T12:15:55.723Z
Modified
2026-01-27T11:16:57.119993Z
Severity
  • 7.8 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
Summary
[none]
Details

In the Linux kernel, the following vulnerability has been resolved: macvlan: add forgotten nlapolicy for IFLAMACVLANBCCUTOFF The previous commit 954d1fa1ac93 ("macvlan: Add netlink attribute for broadcast cutoff") added one additional attribute named IFLAMACVLANBCCUTOFF to allow broadcast cutfoff. However, it forgot to describe the nlapolicy at macvlanpolicy (drivers/net/macvlan.c). Hence, this suppose NLAS32 (4 bytes) integer can be faked as empty (0 bytes) by a malicious user, which could leads to OOB in heap just like CVE-2023-3773. To fix it, this commit just completes the nlapolicy description for IFLAMACVLANBCCUTOFF. This enforces the length check and avoids the potential OOB read.

References

Affected packages

Debian:13 / linux

Package

Name
linux
Purl
pkg:deb/debian/linux?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
6.4.11-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source

"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2023-53516.json"

Debian:14 / linux

Package

Name
linux
Purl
pkg:deb/debian/linux?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
6.4.11-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source

"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2023-53516.json"