CVE-2023-44466 Integer overflow in n/a

What is CVE-2023-44466?

CVE-2023-44466 is a high-severity vulnerability in Linux kernel, published on 29 Sep 2023. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

An issue was discovered in net/ceph/messenger_v2.c in the Linux kernel before 6.4.5. There is an integer signedness error, leading to a buffer overflow and remote code execution via HELLO or one of the AUTH frames. This occurs because of an untrusted length taken from a TCP packet in ceph_decode_32.

Weakness: CWE-120

Which versions are affected by CVE-2023-44466?

It affects 1 product.

Products include Linux kernel.

How do I fix CVE-2023-44466?

Upgrade to a fixed version.

Is CVE-2023-44466 being exploited?

There is no known exploitation of CVE-2023-44466 in the wild and no public exploit code.

Other vulnerabilities in Linux kernel

• CVE-2026-53266 Linux Kernel Out-of-Bounds Write Exploited High 8.8
• CVE-2013-6282 Linux Kernel Improper Input Validation Exploited High 8.8
• CVE-2022-0185 Linux Kernel Heap-Based Buffer Overflow Exploited High 8.4
• CVE-2013-2094 Linux Kernel Privilege Escalation Exploited High 8.4
• CVE-2026-53362 Linux Kernel Unspecified Exploited High 7.8

All Linux kernel vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• GitHub advisory
• How this page is made

Also known as AZL-30056, DEBIAN-CVE-2023-44466, GHSA-7wwm-57j8-wx2j, GHSA-jg27-jx6w-xwph, UBUNTU-CVE-2023-44466.