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A Vulnerability Exists within Debian GNU/Linux
A vulnerability exists within Debian GNU/Linux. The vulnerability could allow remote attackers to execute arbitrary code.
For a complete description of the vulnerabilities and effected systems, visit Bug 2044646 (CVE-2021-33912) - CVE-2021-33912 libspf2: Four-byte heap-based buffer overflow in SPF_record_expand_data in spf_expand.c.