CVE-2021-33930 Memory corruption in n/a
A buffer overflow in libsolv allows attackers to cause a denial of service via crafted package metadata.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2021-33930?
CVE-2021-33930 is a high-severity memory corruption vulnerability in n/a, published on 2 Sep 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Buffer overflow vulnerability in function pool_installable_whatprovides in src/repo.h in libsolv before 0.7.17 allows attackers to cause a Denial of Service.
Weakness: CWE-787
Which versions are affected by CVE-2021-33930?
It affects 1 product.
Products include Opensuse Libsolv.
How do I fix CVE-2021-33930?
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-2021-33930 being exploited?
There is no known exploitation of CVE-2021-33930 in the wild and no public exploit code.
Other vulnerabilities in n/a
- CVE-2026-48864 Libsolv: heap buffer overflow in libsolv repopagestore via unchecked decompression of malicious .solv page data
- CVE-2021-33928 Memory corruption in n/a
- CVE-2021-33929 Memory corruption in n/a
- CVE-2021-33938 Memory corruption in n/a
- CVE-2026-9149 Libsolv: heap buffer overflow in libsolv repo_add_solv via negative maxsize from crafted .solv file
Sources
Also known as DEBIAN-CVE-2021-33930, GHSA-m67h-g698-3wr3, UBUNTU-CVE-2021-33930.