CVE-2019-16748 — Out-of-bounds Read in Wolfssl

CWE-125 — Out-of-bounds Read5 documents5 sources
Severity
9.8CRITICALNVD
EPSS
0.9%
top 24.24%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
2
WolfsslDebian Wolfssl
Timeline
PublishedSep 24
Latest updateMay 11

Description

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.

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HExploitability: 3.9 | Impact: 5.9

Affected Packages3 packages

▶debiandebian/wolfssl< wolfssl 4.2.0+dfsg-1 (bookworm)
▶Debianwolfssl/wolfssl< 4.2.0+dfsg-1+3
▶NVDwolfssl/wolfssl4.1.0

🔴Vulnerability Details

2
GHSA
GHSA-44q4-7h77-fj8h: In wolfSSL through 4↗2022-05-24
▶
OSV
CVE-2019-16748: In wolfSSL through 4↗2019-09-24
▶

📋Vendor Advisories

2
CISA ICS
Rockwell Automation PanelView 800↗2023-05-11
▶
Debian
CVE-2019-16748: wolfssl - In wolfSSL through 4.1.0, there is a missing sanity check of memory accesses in ...↗2019
▶
CVE-2019-16748 — Out-of-bounds Read in Debian Wolfssl | cvebase