CVE-2018-16424 — A double free when handling responses in read_file in tools/egk-tool
A double free when handling responses in read_file in tools/egk-tool.c (aka the eGK card tool) in OpenSC before 0.19.0-rc1 could be used by attackers able to supply crafted smartcards to cause a denial of service (application crash) or possibly have unspecified other impact.
Published
2018-09-04T00:00:00.000Z
Last modified
2024-08-05T10:24:32.054Z
01What is this vulnerability?
A double free when handling responses in read_file in tools/egk-tool.c (aka the eGK card tool) in OpenSC before 0.19.0-rc1 could be used by attackers able to supply crafted smartcards to cause a denial of service (application crash) or possibly have unspecified other impact.
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: 2018-09-04T00:00:00.000Z
- Last modified: 2024-08-05T10:24:32.054Z
09References
- github.com — https://github.com/OpenSC/OpenSC/commit/360e95d45ac4123255a4c796db96337f332160ad…
- github.com — https://github.com/OpenSC/OpenSC/releases/tag/0.19.0-rc1
- www.x41-dsec.de — https://www.x41-dsec.de/lab/advisories/x41-2018-002-OpenSC/
- lists.debian.org — https://lists.debian.org/debian-lts-announce/2019/09/msg00009.html
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