Upstream information

CVE-2021-33912 at MITRE


libspf2 before 1.2.11 has a four-byte heap-based buffer overflow that might allow remote attackers to execute arbitrary code (via an unauthenticated e-mail message from anywhere on the Internet) with a crafted SPF DNS record, because of incorrect sprintf usage in SPF_record_expand_data in spf_expand.c. The vulnerable code may be part of the supply chain of a site's e-mail infrastructure (e.g., with additional configuration, Exim can use libspf2; the Postfix web site links to unofficial patches for use of libspf2 with Postfix; older versions of spfquery relied on libspf2) but most often is not.

SUSE information

Overall state of this security issue: Does not affect SUSE products

This issue is currently not rated by SUSE as it is not affecting the SUSE Enterprise products.

SUSE Bugzilla entry: 1194921 [NEW]

No SUSE Security Announcements cross referenced.