What is CVE-2023-3773?

CVE-2023-3773 is a Medium severity Linux kernel vulnerability with a CVSS score of 4.4 out of 10, classified as a Out-of-bounds Read flaw (CWE-125). CVE-2023-3773 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2023-3773?

CVE-2023-3773 has a CVSS score of 4.4 out of 10, rated Medium severity. The vector string is CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N.

Is there a patch available for CVE-2023-3773?

No patch is currently available for CVE-2023-3773. Monitor the NIST NVD and your Linux distribution's security advisories for updates.

Is CVE-2023-3773 actively exploited?

CVE-2023-3773 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is Out-of-bounds Read (CWE-125)?

The product reads data past the end or before the beginning of the intended buffer. See MITRE CWE for full details: https://cwe.mitre.org/data/definitions/125.html

CVE-2023-3773

Medium

A flaw was found in the Linux kernel’s IP framework for transforming packets (XFRM subsystem). This issue may allow a malicious user with CAP_NET_ADMIN privileges to cause a 4 byte out-of-bounds read of XFRMA_MTIMER_THRESH when parsing netlink attributes, leading to potential leakage of sensitive heap data to userspace.

Package Linux Kernel

Published 2023-07-25

Last modified 2024-11-21

CVSS version 3.1

Patch available

Awaiting data

CVSS 3.1 score

4.4

out of 10

Medium

Attack Vector

Local

Attack Complexity

Low

Privileges Required

High

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

None

Vector string

CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N

Weakness type

CWE-125

CVE-2023-3773 is a Out-of-bounds Read vulnerability

What is Out-of-bounds Read?

The product reads data past the end or before the beginning of the intended buffer. Learn more on MITRE CWE

References

The following references provide additional information about CVE-2023-3773 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.

Red Hat
https://access.redhat.com/errata/RHSA-2023:6583
Red Hat
https://access.redhat.com/security/cve/CVE-2023-3773

Third Party Advisory
Red Hat
https://bugzilla.redhat.com/show_bug.cgi?id=2218944

Issue Tracking Third Party Advisory
Debian Security
https://lists.debian.org/debian-lts-announce/2023/10/msg00027.html
Debian Security
https://www.debian.org/security/2023/dsa-5492

Details

CVE ID CVE-2023-3773

Severity Medium

CVSS score 4.4 / 10

CVSS version 3.1

Published 2023-07-25

Modified 2024-11-21

KEV No

Patch Awaiting data

Package linux

Frequently asked questions

What is CVE-2023-3773?

CVE-2023-3773 is a Medium severity Linux kernel vulnerability with a CVSS score of 4.4 out of 10 , classified as an Out-of-bounds Read flaw (CWE-125) . CVE-2023-3773 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2023-3773?

CVE-2023-3773 has a CVSS score of 4.4 out of 10, rated Medium severity (CVSS 3.1). The vector string is CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N.
Is there a patch available for CVE-2023-3773?

No patch is currently available for CVE-2023-3773. Monitor the NIST NVD and your Linux distribution's security advisories for updates.
Is CVE-2023-3773 actively exploited?

No — CVE-2023-3773 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.
What is Out-of-bounds Read (CWE-125)?

The product reads data past the end or before the beginning of the intended buffer. View CWE-125 on MITRE CWE →