vulnerability

Arch Linux: Arbitrary code execution (CVE-2016-6303)

Severity
7
CVSS
(AV:N/AC:L/Au:N/C:P/I:P/A:P)
Published
Sep 16, 2016
Added
Jul 11, 2025
Modified
Nov 27, 2025

Description

An overflow can occur in MDC2_Update() either if called directly or through the EVP_DigestUpdate() function using MDC2. If an attacker is able to supply very large amounts of input data after a previous call to EVP_EncryptUpdate() with a partial block then a length check can overflow resulting in a heap corruption.
The amount of data needed is comparable to SIZE_MAX which is impractical on most platforms.

Solution

arch-linux-upgrade-latest

References

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