CVE-2015-5523 Denial of service in n/a
Remote attackers can cause a denial of service via a crash triggered by large memory allocation when processing malformed HTML with empty hrefs.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2015-5523?
CVE-2015-5523 is a medium-severity denial of service vulnerability in Apple Iphone Os, published on 11 Aug 2015. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
The ParseValue function in lexer.c in tidy before 4.9.31 allows remote attackers to cause a denial of service (crash) via vectors involving multiple whitespace characters before an empty href, which triggers a large memory allocation.
Weakness: CWE-119
Which versions are affected by CVE-2015-5523?
It affects 6 products.
Products include Apple Iphone Os, Apple Mac Os X, Apple Watchos, Canonical Ubuntu Linux, Debian Debian Linux, Htacg Tidy.
How do I fix CVE-2015-5523?
Upgrade to a fixed version.
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-2015-5523 being exploited?
There is no known exploitation of CVE-2015-5523 in the wild and no public exploit code.
Other vulnerabilities in Apple Iphone Os
Sources
Also known as GHSA-v5vg-qv4w-24wv, UBUNTU-CVE-2015-5523.