CVE-2020-25614 xmlquery lacks check for whether LoadURL response is in XML format, causing denial of service
Attackers can cause a denial of service via SIGSEGV in the xmlquery library by providing non-XML responses to LoadURL.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2020-25614?
CVE-2020-25614 is a critical denial of service vulnerability in n/a, published on 16 Sep 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
xmlquery before 1.3.1 lacks a check for whether a LoadURL response is in the XML format, which allows attackers to cause a denial of service (SIGSEGV) at xmlquery.(*Node).InnerText or possibly have unspecified other impact.
Which versions are affected by CVE-2020-25614?
3 open source packages ship an affected version, including github.com/antchfx/xmlquery. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
github.com/antchfx/xmlquery Go | All versions | 1.3.1 |
github.com/antchfx/xmlquery Go | All versions | 1.3.1 |
github.com/antchfx/xmlquery Go | All versions | 1.3.1 |
Products include Xmlquery Project Xmlquery.
How do I fix CVE-2020-25614?
Upgrade github.com/antchfx/xmlquery to 1.3.1 or later.
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-2020-25614 being exploited?
There is no known exploitation of CVE-2020-25614 in the wild and no public exploit code.
Sources
Also known as DEBIAN-CVE-2020-25614, GHSA-93m7-c69f-5cfj, GO-2020-0048, UBUNTU-CVE-2020-25614.