CVE-2019-6245 Denial of service in n/a
An attacker can cause a denial of service via stack exhaustion in the Anti-Grain Geometry library used by SVG++ due to uncontrolled recursion.
- 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
- Available
What is CVE-2019-6245?
CVE-2019-6245 is a high-severity denial of service vulnerability in Debian Debian Linux, published on 13 Jan 2019. 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
An issue was discovered in Anti-Grain Geometry (AGG) 2.4 as used in SVG++ (aka svgpp) 1.2.3. In the function agg::cell_aa::not_equal, dx is assigned to (x2 - x1). If dx >= dx_limit, which is (16384 << poly_subpixel_shift), this function will call itself recursively. There can be a situation where (x2 - x1) is always bigger than dx_limit during the recursion, leading to continual stack consumption.
Weakness: CWE-787
Which versions are affected by CVE-2019-6245?
It affects 3 products.
Products include Antigrain Agg, Debian Debian Linux, Svgpp Svgpp.
How do I fix CVE-2019-6245?
Apply the vendor's patch.
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-2019-6245 being exploited?
There is no known exploitation of CVE-2019-6245 in the wild and no public exploit code.
Other vulnerabilities in Debian Debian Linux
Sources
Also known as DEBIAN-CVE-2019-6245, DLA-1656-1, DLA-2872-1, GHSA-pq7q-m4p8-r3wp, UBUNTU-CVE-2019-6245.