CVE-2021-28237 Memory corruption in n/a
A heap-buffer overflow in LibreDWG allows attackers to execute arbitrary code or cause denial of service via crafted DWG files.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2021-28237?
CVE-2021-28237 is a critical memory corruption vulnerability in Gnu Libredwg, published on 2 Dec 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
LibreDWG v0.12.3 was discovered to contain a heap-buffer overflow via decode_preR13.
Weakness: CWE-787
Which versions are affected by CVE-2021-28237?
It affects 1 product.
Linux distribution packages (3)
libredwg SUSE:Package Hub 15 SP4 | All versions | 0.12.5-bp154.2.3.1 |
libredwg openSUSE:Leap 15.4 | All versions | 0.12.5-bp154.2.3.1 |
libredwg openSUSE:Tumbleweed | All versions | 0.12.5-2.1 |
Products include Gnu Libredwg.
How do I fix CVE-2021-28237?
Apply the vendor's patch.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2021-28237 being exploited?
There is no known exploitation of CVE-2021-28237 in the wild and no public exploit code.
Other vulnerabilities in Gnu Libredwg
Sources
Also known as GHSA-rc9p-cjq8-2vpg, openSUSE-SU-2022:0155-1, openSUSE-SU-2024:12083-1.