PT-2019-14323 · Wolfssl · Wolfssl

Flyroom · Published 2019-08-26 · Updated 2019-09-03 · CVE-2019-15651

Positive Technologies (AI Summary)

CVSS v3.1

9.8

Critical

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions wolfSSL version 4.1.0

Description The issue is related to a one-byte heap-based buffer over-read in the DecodeCertExtensions function located in wolfcrypt/src/asn.c. This occurs because the reading of the ASN BOOLEAN byte is mishandled for a crafted DER certificate in the GetLength ex function.

Recommendations For wolfSSL version 4.1.0, consider updating to a newer version that addresses this issue, as the current version has a heap-based buffer over-read that could be exploited. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Out of bounds Read

Weakness Enumeration

CWE-125

Related Identifiers

CVE-2019-15651

Affected Products

Wolfssl

References · 8

• https://cve.org/CVERecord?id=CVE-2019-15651 · Security Note
• https://osv.dev/vulnerability/DEBIAN-CVE-2019-15651 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2019-15651 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2019-15651 · Security Note
• https://security-tracker.debian.org/tracker/CVE-2019-15651 · Vendor Advisory
• https://ubuntu.com/security/CVE-2019-15651 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2019-15651 · Vendor Advisory
• https://github.com/wolfSSL/wolfssl/issues/2421 · Note