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Alpine Linux: CVE-2023-6935: Vulnerability in Multiple Components

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Alpine Linux: CVE-2023-6935: Vulnerability in Multiple Components

Severity
7
CVSS
(AV:N/AC:M/Au:N/C:C/I:N/A:N)
Published
02/09/2024
Created
08/23/2024
Added
08/22/2024
Modified
10/02/2024

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 specific to static RSA cipher suites, and expected to be padding-independent. The vulnerability allows an attacker to decrypt ciphertexts and forge signatures after probing with a large number of test observations. However the server’s private key is not exposed.

Solution(s)

  • alpine-linux-upgrade-wolfssl

References

  • https://attackerkb.com/topics/cve-2023-6935
  • CVE - 2023-6935
  • https://security.alpinelinux.org/vuln/CVE-2023-6935
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