CVE-2022-0742 Memory leak in ICMP6 in Linux Kernel

What is CVE-2022-0742?

CVE-2022-0742 is a critical denial of service vulnerability in Linux kernel, published on 18 Mar 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Memory leak in icmp6 implementation in Linux Kernel 5.13+ allows a remote attacker to DoS a host by making it go out-of-memory via icmp6 packets of type 130 or 131. We recommend upgrading past commit 2d3916f3189172d5c69d33065c3c21119fe539fc.

Weakness: CWE-401, CWE-275

Which versions are affected by CVE-2022-0742?

It affects 14 products.

Products include Linux kernel, Netapp A400 Firmware, Netapp Aff 8300 Firmware, Netapp Aff 8700 Firmware, Netapp Fas 8300 Firmware, Netapp Fas 8700 Firmware and 8 more.

How do I fix CVE-2022-0742?

Apply the vendor's patch.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2022-0742 being exploited?

There is no known exploitation of CVE-2022-0742 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
• How this page is made

Also known as AZL-9094, DEBIAN-CVE-2022-0742, GHSA-c2j9-m677-3m66, UBUNTU-CVE-2022-0742, USN-5346-1.