CVE-2022-25761 Denial of Service (DoS)

What is CVE-2022-25761?

CVE-2022-25761 is a high-severity denial of service vulnerability in Fedoraproject Fedora, published on 23 Aug 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

The package open62541/open62541 before 1.2.5, from 1.3-rc1 and before 1.3.1 are vulnerable to Denial of Service (DoS) due to a missing limitation on the number of received chunks - per single session or in total for all concurrent sessions. An attacker can exploit this vulnerability by sending an unlimited number of huge chunks (e.g. 2GB each) without sending the Final closing chunk.

Weakness: CWE-770

Which versions are affected by CVE-2022-25761?

It affects 2 products.

Products include Fedoraproject Fedora, Open62541 Open62541.

How do I fix CVE-2022-25761?

No fix has been published for CVE-2022-25761 yet. Limit exposure of the affected software until one is available.

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-2022-25761 being exploited?

There is no known exploitation of CVE-2022-25761 in the wild and no public exploit code.

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• CVE-2019-5544 VMware ESXi and Horizon DaaS OpenSLP Heap-Based Buffer Overflow Exploited Critical 9.8
• CVE-2024-4947 Google Chromium V8 Type Confusion Exploited Critical 9.6
• CVE-2024-4671 Google Chromium Visuals Use-After-Free Exploited Critical 9.6

All Fedoraproject Fedora vulnerabilities

Sources

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

Also known as GHSA-p69w-fx96-62pg.