OSV-2022-456 Null-dereference READ in load_glyph
Not scored
Published
Check this codebase for OSV-2022-456 and fix it if it is affected.
What it is: OSV-2022-456 is a vulnerability in ghostscript, published on 4 Jun 2022.
Exploitation: There is no known exploitation of OSV-2022-456 in the wild and no public exploit code.
Affected packages and fixed versions:
- ghostscript (OSS-Fuzz): affected all versions; no fix listed
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/OSV-2022-456/ (Markdown: https://insights.sbomify.com/OSV-2022-456/index.md)
A null pointer dereference in Ghostscript's glyph loading can cause a denial of service when processing malicious files.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Not stated
- Victim action needed
- Not needed
- Fix
- None listed
What is OSV-2022-456?
OSV-2022-456 is a vulnerability in ghostscript, published on 4 Jun 2022.
Official description
OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=47798
Crash type: Null-dereference READ
Crash state:
load_glyph
gs_fapi_ft_get_char_raster_metrics
gs_fapi_do_char
Which versions are affected by OSV-2022-456?
1 open source package ship an affected version, including ghostscript.
| Package | Affected | Fixed in |
|---|---|---|
ghostscript OSS-Fuzz | All versions | None |
How do I fix OSV-2022-456?
No fix has been published for OSV-2022-456 yet. Limit exposure of the affected software until one is available.
Is OSV-2022-456 being exploited?
There is no known exploitation of OSV-2022-456 in the wild and no public exploit code.