CVE-2021-24116 — Observable Discrepancy in Wolfssl

CWE-203 — Observable Discrepancy5 documents5 sources
Severity
4.9MEDIUMNVD
EPSS
0.3%
top 51.51%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
2
WolfsslDebian Wolfssl
Timeline
PublishedJul 14
Latest updateMay 24

Description

In wolfSSL through 4.6.0, a side-channel vulnerability in base64 PEM file decoding allows system-level (administrator) attackers to obtain information about secret RSA keys via a controlled-channel and side-channel attack on software running in isolated environments that can be single stepped, especially Intel SGX.

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:NExploitability: 1.2 | Impact: 3.6

Affected Packages3 packages

▶debiandebian/wolfssl< wolfssl 4.6.0-1 (bookworm)
▶NVDwolfssl/wolfssl< 4.6.0
▶Debianwolfssl/wolfssl< 4.6.0-1+3

🔴Vulnerability Details

2
GHSA
GHSA-jh62-5q2g-qjmx: In wolfSSL through 4↗2022-05-24
▶
OSV
CVE-2021-24116: In wolfSSL through 4↗2021-07-14
▶

📋Vendor Advisories

1
Debian
CVE-2021-24116: wolfssl - In wolfSSL through 4.6.0, a side-channel vulnerability in base64 PEM file decodi...↗2021
▶

📄Research Papers

1
arXiv
Util::Lookup: Exploiting key decoding in cryptographic libraries↗2021-08-10
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CVE-2021-24116 — Observable Discrepancy in Wolfssl | cvebase