CVE-2017-17497 Null dereference in n/a

High 7.5 Published Updated

Attackers can cause a denial of service via segmentation fault in Tidy library due to improper validation of currentNode variable.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
Available

What is CVE-2017-17497?

CVE-2017-17497 is a high-severity vulnerability in n/a, published on 10 Dec 2017. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

In Tidy 5.7.0, the prvTidyTidyMetaCharset function in clean.c allows attackers to cause a denial of service (Segmentation Fault), because the currentNode variable in the "children of the head" processing feature is modified in the loop without validating the new value.

Weakness: CWE-119

Which versions are affected by CVE-2017-17497?

It affects 1 product.

Products include Htacg Tidy.

How do I fix CVE-2017-17497?

Apply the vendor's patch.

Is CVE-2017-17497 being exploited?

There is no known exploitation of CVE-2017-17497 in the wild and no public exploit code.

Sources

Also known as DEBIAN-CVE-2017-17497, GHSA-xj89-pr57-g8p3.

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