CVE-2019-16748

In wolfSSL through 4.1.0, there is a missing sanity check of memory accesses in parsing ASN.1 certificate data while handshaking. Specifically, there is a one-byte heap-based buffer over-read in CheckCertSignature_ex in wolfcrypt/src/asn.c.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
9.8 CRITICAL
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
mitreCNA
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CVEADP
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Base Score
CVSS 3.x
EPSS Score
Percentile: 73%
VendorProductVersion
wolfsslwolfssl
𝑥
≤ 4.1.0
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
wolfssl
bullseye
4.6.0+p1-0+deb11u2
fixed
bookworm
5.5.4-2+deb12u1
fixed
sid
5.7.2-0.1
fixed
trixie
5.7.2-0.1
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
wolfssl
noble
not-affected
mantic
not-affected
lunar
not-affected
kinetic
not-affected
jammy
not-affected
impish
not-affected
hirsute
not-affected
groovy
not-affected
focal
not-affected
eoan
ignored
disco
ignored
bionic
needs-triage
xenial
needs-triage
trusty
dne
Common Weakness Enumeration
References
https://github.com/wolfSSL/wolfssl/issues/2459
https://github.com/wolfSSL/wolfssl/issues/2459