CVE-2023-6935 — Observable Discrepancy in Wolfssl

CWE-203 — Observable Discrepancy5 documents5 sources
Severity
5.9MEDIUMNVD
EPSS
0.3%
top 45.37%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
7
WolfsslDebian WolfsslMsrc Azl3 Mariadb 10.11.6-3 ON Azure Linux 3.0+4 more
Timeline
PublishedFeb 9
Latest updateFeb 13

Description

wolfSSL SP Math All RSA implementation is vulnerable to the Marvin Attack, new variation of a timing Bleichenbacher style attack, when built with the following options to configure: --enable-all CFLAGS="-DWOLFSSL_STATIC_RSA" The define “WOLFSSL_STATIC_RSA” enables static RSA cipher suites, which is not recommended, and has been disabled by default since wolfSSL 3.6.6. Therefore the default build since 3.6.6, even with "--enable-all", is not vulnerable to the Marvin Attack. The vulnerability is…

CVSS vector

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:NExploitability: 2.2 | Impact: 3.6

Affected Packages8 packages

▶debiandebian/wolfssl< wolfssl 5.6.6-1.2 (forky)
▶Debianwolfssl/wolfssl< 5.6.6-1.2+1
▶NVDwolfssl/wolfssl3.12.2 — 5.6.4

🔴Vulnerability Details

2
GHSA
GHSA-r36f-f47x-637q: wolfSSL SP Math All RSA implementation is vulnerable to the Marvin Attack, new variation of a timing Bleichenbacher style attack, when built with the↗2024-02-10
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OSV
CVE-2023-6935: wolfSSL SP Math All RSA implementation is vulnerable to the Marvin Attack, new variation of a timing Bleichenbacher style attack, when built with the↗2024-02-09
▶

📋Vendor Advisories

2
Microsoft
Marvin Attack vulnerability in SP Math All RSA↗2024-02-13
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Debian
CVE-2023-6935: wolfssl - wolfSSL SP Math All RSA implementation is vulnerable to the Marvin Attack, new v...↗2023
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CVE-2023-6935 — Observable Discrepancy in Wolfssl | cvebase