CVE-2019-15651
9.8
CRITICAL
CVSS 3.1
EPSS 0.22%
Description
wolfSSL 4.1.0 has a one-byte heap-based buffer over-read in DecodeCertExtensions in wolfcrypt/src/asn.c because reading the ASN_BOOLEAN byte is mishandled for a crafted DER certificate in GetLength_ex.
How to fix CVE-2019-15651
To remediate CVE-2019-15651, upgrade the affected package to a fixed version below.
- Debian/wolfssl—upgrade to 4.1.0+dfsg-2 or later
Is CVE-2019-15651 being exploited?
Low — EPSS is 0.2%, meaning exploitation activity has not been observed at scale.
Affected packages (1)
- from 0, < 4.1.0+dfsg-2
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | CRITICAL9.8 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |