Vulnerabilities > CVE-2023-3773 - Out-of-bounds Read vulnerability in multiple products
Attack vector
LOCAL Attack complexity
LOW Privileges required
HIGH Confidentiality impact
HIGH Integrity impact
NONE Availability impact
NONE Summary
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.
Vulnerable Configurations
| Part | Description | Count |
|---|---|---|
| OS | 2 | |
| OS | 1 | |
| OS | 1 | |
| OS | 2 |
Common Weakness Enumeration (CWE)
Common Attack Pattern Enumeration and Classification (CAPEC)
- Overread Buffers An adversary attacks a target by providing input that causes an application to read beyond the boundary of a defined buffer. This typically occurs when a value influencing where to start or stop reading is set to reflect positions outside of the valid memory location of the buffer. This type of attack may result in exposure of sensitive information, a system crash, or arbitrary code execution.
References
- https://access.redhat.com/errata/RHSA-2023:6583
- https://access.redhat.com/errata/RHSA-2023:6583
- https://access.redhat.com/security/cve/CVE-2023-3773
- https://access.redhat.com/security/cve/CVE-2023-3773
- https://bugzilla.redhat.com/show_bug.cgi?id=2218944
- https://bugzilla.redhat.com/show_bug.cgi?id=2218944
- https://lists.debian.org/debian-lts-announce/2023/10/msg00027.html
- https://www.debian.org/security/2023/dsa-5492