CVE-2023-45897 — exfatprogs before 1

exfatprogs before 1.2.2 allows out-of-bounds memory access, such as in read_file_dentry_set.

01What is this vulnerability?

exfatprogs before 1.2.2 allows out-of-bounds memory access, such as in read_file_dentry_set.

02Affected products

Vendor	Product	Versions
n	a / n/a	n/a

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: 2023-10-28T00:00:00.000Z
• Last modified: 2024-09-05T14:53:21.130Z

09References

• github.com — https://github.com/exfatprogs/exfatprogs/commit/ec78688e5fb5a70e13df82b4c0da1e62…
• github.com — https://github.com/exfatprogs/exfatprogs/releases/tag/1.2.2
• github.com — https://github.com/exfatprogs/exfatprogs/commit/22d0e43e8d24119cbfc6efafabb0dec6…
• github.com — https://github.com/exfatprogs/exfatprogs/commit/4abc55e976573991e6a1117bb2b3711e…
• dfir.ru — https://dfir.ru/2023/11/01/cve-2023-45897-a-vulnerability-in-the-linux-exfat-use…