CVE-2018-6390 Denial of service in n/a
Remote attackers can crash Kingsoft WPS Office via crafted files due to improper memory size validation in the WStr::assign function.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2018-6390?
CVE-2018-6390 is a medium-severity denial of service vulnerability in n/a, published on 29 Jan 2018. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
The WStr::assign function in kso.dll in Kingsoft WPS Office 10.1.0.7106 and 10.2.0.5978 does not validate the size of the source memory block before an _copy call, which allows remote attackers to cause a denial of service (access violation and application crash) via a crafted (a) web page, (b) office document, or (c) .rtf file.
Weakness: CWE-119
Which versions are affected by CVE-2018-6390?
It affects 1 product.
Products include Wps Wps Office.
How do I fix CVE-2018-6390?
No fix has been published for CVE-2018-6390 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-2018-6390 being exploited?
There is no known exploitation of CVE-2018-6390 in the wild and no public exploit code.
Other vulnerabilities in n/a
Sources
Also known as GHSA-7p8m-6xxh-cwjp.