CVE-2019-9543 Denial of service in n/a
A crafted PDF file can trigger a recursive function call in Poppler, causing a segmentation fault and denial of service.
- 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-2019-9543?
CVE-2019-9543 is a high-severity denial of service vulnerability in Freedesktop Poppler, published on 1 Mar 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 Poppler 0.74.0. A recursive function call, in JBIG2Stream::readGenericBitmap() located in JBIG2Stream.cc, can be triggered by sending a crafted pdf file to (for example) the pdfseparate binary. It allows an attacker to cause Denial of Service (Segmentation fault) or possibly have unspecified other impact. This is related to JArithmeticDecoder::decodeBit.
Weakness: CWE-674
Which versions are affected by CVE-2019-9543?
It affects 1 product.
Products include Freedesktop Poppler.
How do I fix CVE-2019-9543?
No fix has been published for CVE-2019-9543 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-2019-9543 being exploited?
There is no known exploitation of CVE-2019-9543 in the wild and no public exploit code.
Other vulnerabilities in Freedesktop Poppler
Sources
Also known as DEBIAN-CVE-2019-9543, ECHO-e20a-5f84-7b88, GHSA-hwxv-7gw9-pfm4, UBUNTU-CVE-2019-9543.