Off-by-one buffer overflow in spamc of SpamAssassin 2.40 through 2.43, when using BSMTP mode ("-B"), allows remote attackers to execute arbitrary code via email containing headers with leading "." characters.
| Software | From | Fixed in |
|---|---|---|
| spamassassin / spamassassin | 2.40 | 2.40.x |
| spamassassin / spamassassin | 2.42 | 2.42.x |
| spamassassin / spamassassin | 2.41 | 2.41.x |
| spamassassin / spamassassin | 2.43 | 2.43.x |