PT-2020-12799 · Wolfssl · Wolfssl

Published 2020-04-12 · Updated 2022-01-01 · CVE-2020-11713

Positive Technologies (AI Summary)

CVSS v3.1

7.5

High

Base vector

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

Name of the Vulnerable Software and Affected Versions wolfSSL version 4.3.0

Description The issue is related to the mulmod code in the wc ecc mulmod ex function in ecc.c, which does not properly resist timing side-channel attacks. This could potentially allow an attacker to exploit the timing difference in the code to gain sensitive information.

Recommendations For wolfSSL version 4.3.0, consider applying a patch or fix that properly resists timing side-channel attacks in the wc ecc mulmod ex function. As a temporary workaround, restrict access to the wc ecc mulmod ex function to minimize the risk of exploitation. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Side Channel Attack

Weakness Enumeration

CWE-203

Related Identifiers

CVE-2020-11713

Affected Products

Wolfssl

References · 10

• 🔥 https://gist.github.com/pietroborrello/7c5be2d1dc15349c4ffc8671f0aad04f · Exploit
• https://security-tracker.debian.org/tracker/CVE-2020-11713 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2020-11713 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2020-11713 · Security Note
• https://osv.dev/vulnerability/CVE-2020-11713 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2020-11713 · Security Note
• https://osv.dev/vulnerability/DEBIAN-CVE-2020-11713 · Vendor Advisory
• https://ubuntu.com/security/CVE-2020-11713 · Vendor Advisory
• https://github.com/wolfSSL/wolfssl/pull/2894 · Patch
• https://t.me/cvenotify/2667 · Telegram Post