CVE-2021-27799 Memory corruption in n/a
A stack-based buffer overflow in the Zint Barcode Generator library allows attackers to execute arbitrary code or cause denial of service via crafted input.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2021-27799?
CVE-2021-27799 is a high-severity memory corruption vulnerability in n/a, published on 26 Feb 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
ean_leading_zeroes in backend/upcean.c in Zint Barcode Generator 2.9.1 has a stack-based buffer overflow that is reachable from the C API through an application that includes the Zint Barcode Generator library code.
Weakness: CWE-787
Which versions are affected by CVE-2021-27799?
It affects 1 product.
Products include Zint Barcode Generator.
How do I fix CVE-2021-27799?
Upgrade to a fixed version.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2021-27799 being exploited?
There is no known exploitation of CVE-2021-27799 in the wild and no public exploit code.
Other vulnerabilities in n/a
Sources
Also known as DEBIAN-CVE-2021-27799, GHSA-rr98-pccv-8m4w, UBUNTU-CVE-2021-27799.