Stack-based buffer overflow in the trace message functionality in Pegasus Mail 4.21a through 4.21c and 4.30PB1 allow remote attackers to execute arbitrary code via a long POP3 reply.
Off-by-one error in Pegasus Mail 4.21a through 4.21c and 4.30PB1 allows remote attackers to execute arbitrary code via a long email message header, which triggers a one-byte buffer overflow.