CVE-2007-1661 Perl-Compatible Regular Expression (PCRE) library before 7.3 backtracks too far when matching certain input bytes against some regex pattern
Medium 6.4
Published
Updated
Check this codebase for CVE-2007-1661 and fix it if it is affected.
What it is: CVE-2007-1661 is a medium-severity vulnerability in Apple Mac Os X, published on 7 Nov 2007.
Exploitation: There is no known exploitation of CVE-2007-1661 in the wild and no public exploit code.
Affected product: Apple Mac Os X. 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-2007-1661/ (Markdown: https://insights.sbomify.com/CVE-2007-1661/index.md)
- Exploited in the wild
- Not known
- Fix
- Available
What is CVE-2007-1661?
CVE-2007-1661 is a medium-severity vulnerability in Apple Mac Os X, published on 7 Nov 2007.
Official description
Perl-Compatible Regular Expression (PCRE) library before 7.3 backtracks too far when matching certain input bytes against some regex patterns in non-UTF-8 mode, which allows context-dependent attackers to obtain sensitive information or cause a denial of service (crash), as demonstrated by the "\X?\d" and "\P{L}?\d" patterns.
Which versions are affected by CVE-2007-1661?
It affects 3 products.
Products include Apple Mac Os X, Apple Mac Os X Server, Pcre Perl-Compatible Regular Expression Library.
How do I fix CVE-2007-1661?
Upgrade to a fixed version.
Is CVE-2007-1661 being exploited?
There is no known exploitation of CVE-2007-1661 in the wild and no public exploit code.
Other vulnerabilities in Apple Mac Os X
Sources
Also known as DEBIAN-CVE-2007-1661, GHSA-759q-4q8w-5gfh.