CVE-2022-1012 Information disclosure in Kernel

What is CVE-2022-1012?

CVE-2022-1012 is a high-severity vulnerability in Linux kernel, published on 5 Aug 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

A memory leak problem was found in the TCP source port generation algorithm in net/ipv4/tcp.c due to the small table perturb size. This flaw may allow an attacker to information leak and may cause a denial of service problem.

Weakness: CWE-401

Which versions are affected by CVE-2022-1012?

It affects 1 product.

Products include Linux kernel.

How do I fix CVE-2022-1012?

Apply the vendor's patch.

Is CVE-2022-1012 being exploited?

There is no known exploitation of CVE-2022-1012 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
• How this page is made

Also known as AZL-10468, CLSA-2022-1666283812, CLSA-2023-1684277390, CLSA-2023-1684277794, DEBIAN-CVE-2022-1012, UBUNTU-CVE-2022-1012.