PatchTheCVECVE-2017-6414: Memory leak in the vcard_apdu_new function in card_7816.c in libcacard before 2.5.3 allows local guest OS user
CVE-2017-6414 is a medium-severity flaw (CVSS 6.5) affecting libcacard. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
Memory leak in the vcard_apdu_new function in card_7816.c in libcacard before 2.5.3 allows local guest OS users to cause a denial of service (host memory consumption) via vectors related to allocating a new APDU object.
Why this priority
- No elevated risk signals yet
A fixed release or distro patch exists.
Risk facts
| CVSS score | 6.5 (Medium) |
| Attack vector | Local |
| Attack complexity | Low |
| Privileges needed | Low |
| User interaction | None |
| EPSS exploit chance | 0.4% (top 61%) |
| CISA exploited list | No |
| Weakness | CWE-772 |
| Published | 2017-03-15 |
| Last modified | 2026-06-17 |
Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score
Am I affected?
Timeline
- Published CVE record published
- Updated Record last modified
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
Quick answers
How do I fix CVE-2017-6414?
libcacard: upgrade to 2.5.3. Exact commands for each OS are on this page.
Is CVE-2017-6414 being exploited?
CVE-2017-6414 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.
What does CVE-2017-6414 affect?
CVE-2017-6414 affects libcacard. Severity is medium (CVSS 6.5). Memory leak in the vcard_apdu_new function in card_7816.c in libcacard before 2.5.3 allows local guest OS users to cause a denial of service (host memory consumption) via vectors related to allocating a new APDU object.
How urgent is CVE-2017-6414?
Priority 32/100. No elevated risk signals yet.