OSV-2018-459 Use-of-uninitialized-value in lex_white
Not scored
Published
Check this codebase for OSV-2018-459 and fix it if it is affected.
What it is: OSV-2018-459 is a vulnerability in mupdf, published on 15 Jan 2021. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of OSV-2018-459 in the wild and no public exploit code.
Affected packages and fixed versions:
- mupdf (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-2018-459/ (Markdown: https://insights.sbomify.com/OSV-2018-459/index.md)
A use-of-uninitialized-value bug in the PDF lexer can cause a crash when processing malformed PDF streams.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is OSV-2018-459?
OSV-2018-459 is a vulnerability in mupdf, published on 15 Jan 2021. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=5632
Crash type: Use-of-uninitialized-value
Crash state:
lex_white
pdf_lex
pdf_process_stream
Which versions are affected by OSV-2018-459?
1 open source package ship an affected version, including mupdf.
| Package | Affected | Fixed in |
|---|---|---|
mupdf OSS-Fuzz | All versions | None |
How do I fix OSV-2018-459?
No fix has been published for OSV-2018-459 yet. Limit exposure of the affected software until one is available.
Is OSV-2018-459 being exploited?
There is no known exploitation of OSV-2018-459 in the wild and no public exploit code.