CVE catalog
CVE-2019-16748
wolfssl: CVE-2019-16748
- Severity
- High · CVSS 7.8
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H - Published
- Source
- [NVD] · [CVE record]
- EPSS
- 1.15% · Oct 25, 2026
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.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Debian | wolfssl | sid | 5.9.2-1.2 | fixed |
| Debian | wolfssl | trixie | 5.7.2-0.1+deb13u2 | fixed |
| Debian | wolfssl | bookworm | 5.5.4-2+deb12u2 | fixed |
| Debian | wolfssl | bookworm-security | 5.5.4-2+deb12u3 | fixed |
| Ubuntu | wolfssl | 16.04 | 3.4.8+dfsg-1 | vulnerable |
| Ubuntu | wolfssl | 18.04 | 3.10.2+dfsg-2 | vulnerable |
| Ubuntu | wolfssl | 18.04 | 3.12.0+dfsg-1 | vulnerable |
| Ubuntu | wolfssl | 18.04 | 3.12.2+dfsg-1 | vulnerable |
| Ubuntu | wolfssl | 18.04 | 3.13.0+dfsg-1 | vulnerable |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | wolfssl | source | sid | 4.2.0+dfsg-1 | not yet assigned | Not reported | Not reported |
| Debian | wolfssl | source | trixie | 4.2.0+dfsg-1 | not yet assigned | Not reported | Not reported |
| Debian | wolfssl | source | bookworm | 4.2.0+dfsg-1 | not yet assigned | Not reported | Not reported |
OpenFactory catalog packages
[Debian 12 (Bookworm)]
- [libwolfssl35]Fixed
Source package: [wolfssl]
Details (4)
5.5.4-2+deb12u2· amd64 · bookwormFixed · Fixed:
4.2.0+dfsg-1dsa · wolfssl · debian · bookworm; dsa · wolfssl · debian · 12
5.5.4-2+deb12u2· arm64 · bookwormFixed · Fixed:
4.2.0+dfsg-1dsa · wolfssl · debian · bookworm; dsa · wolfssl · debian · 12
5.5.4-2+deb12u3· amd64 · bookworm-securityFixed · Fixed:
4.2.0+dfsg-1dsa · wolfssl · debian · bookworm; dsa · wolfssl · debian · 12
5.5.4-2+deb12u3· arm64 · bookworm-securityFixed · Fixed:
4.2.0+dfsg-1dsa · wolfssl · debian · bookworm; dsa · wolfssl · debian · 12
- [libwolfssl-dev]Fixed
Source package: [wolfssl]
Details (4)
5.5.4-2+deb12u2· amd64 · bookwormFixed · Fixed:
4.2.0+dfsg-1dsa · wolfssl · debian · bookworm; dsa · wolfssl · debian · 12
5.5.4-2+deb12u2· arm64 · bookwormFixed · Fixed:
4.2.0+dfsg-1dsa · wolfssl · debian · bookworm; dsa · wolfssl · debian · 12
5.5.4-2+deb12u3· amd64 · bookworm-securityFixed · Fixed:
4.2.0+dfsg-1dsa · wolfssl · debian · bookworm; dsa · wolfssl · debian · 12
5.5.4-2+deb12u3· arm64 · bookworm-securityFixed · Fixed:
4.2.0+dfsg-1dsa · wolfssl · debian · bookworm; dsa · wolfssl · debian · 12
[Debian 13 (Trixie)]
- [libwolfssl42t64]Fixed
Source package: [wolfssl]
Details (2)
5.7.2-0.1+deb13u1· amd64 · trixieFixed · Fixed:
4.2.0+dfsg-1dsa · wolfssl · debian · 13
5.7.2-0.1+deb13u1· arm64 · trixieFixed · Fixed:
4.2.0+dfsg-1dsa · wolfssl · debian · 13
- [libwolfssl-dev]Fixed
Source package: [wolfssl]
Details (2)
5.7.2-0.1+deb13u1· amd64 · trixieFixed · Fixed:
4.2.0+dfsg-1dsa · wolfssl · debian · 13
5.7.2-0.1+deb13u1· arm64 · trixieFixed · Fixed:
4.2.0+dfsg-1dsa · wolfssl · debian · 13
Observed:
References
- [https://osv.dev/vulnerability/DEBIAN-CVE-2019-16748]
- [https://osv.dev/vulnerability/UBUNTU-CVE-2019-16748]
- [https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/OT/white/2023/icsa-23-131-14.json]
- [https://security-tracker.debian.org/tracker/CVE-2019-16748]
[CISA cybersecurity advisories] · [Debian Security Tracker] · [FIRST EPSS] · [OSV Package Vulnerability Database]