CVE-2023-0592 — A path traversal vulnerability affects jefferson's JFFS2 filesystem extractor

A path traversal vulnerability affects jefferson's JFFS2 filesystem extractor. By crafting malicious JFFS2 files, attackers could force jefferson to write outside of the extraction directory.This issue affects jefferson: before 0.4.1.

01What is this vulnerability?

A path traversal vulnerability affects jefferson's JFFS2 filesystem extractor. By crafting malicious JFFS2 files, attackers could force jefferson to write outside of the extraction directory.This issue affects jefferson: before 0.4.1.

02Affected products

Vendor	Product	Versions
sviehb	jefferson	0

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

• Patch to a fixed version listed in the vendor advisory (see references below).
• Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
• Hunt historical logs for exploitation indicators — see Detection signatures below.

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.

07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

• Published: 2023-01-31T09:25:10.019Z
• Last modified: 2025-03-27T14:37:58.470Z

09References

• onekey.com — https://onekey.com/blog/security-advisory-remote-command-execution-in-binwalk/
• github.com — https://github.com/sviehb/jefferson/commit/971aca1a8b3b9f4fcb4674fa9621d3349195c…