CVE-2021-45764 Null dereference in n/a
Medium 5.5
Published
Updated
Check this codebase for CVE-2021-45764 and fix it if it is affected.
What it is: CVE-2021-45764 is a medium-severity vulnerability in Gpac Gpac, published on 14 Jan 2022. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2021-45764 in the wild and no public exploit code.
Affected product: Gpac Gpac. No package-level version data is available, so check the vendor advisory linked from the reference page.
Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.
Reference: https://insights.sbomify.com/CVE-2021-45764/ (Markdown: https://insights.sbomify.com/CVE-2021-45764/index.md)
An attacker can cause a denial of service in GPAC via an invalid memory address dereference in the shift_chunk_offsets function.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2021-45764?
CVE-2021-45764 is a medium-severity vulnerability in Gpac Gpac, published on 14 Jan 2022. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Official description
GPAC v1.1.0 was discovered to contain an invalid memory address dereference via the function shift_chunk_offsets.isra().
Weakness: CWE-119
Which versions are affected by CVE-2021-45764?
It affects 1 product.
Products include Gpac Gpac.
How do I fix CVE-2021-45764?
Upgrade to a fixed version.
Is CVE-2021-45764 being exploited?
There is no known exploitation of CVE-2021-45764 in the wild and no public exploit code.
Other vulnerabilities in Gpac Gpac
Sources
Also known as DEBIAN-CVE-2021-45764, GHSA-mh95-x4g6-p3xr, UBUNTU-CVE-2021-45764.