VULHUB ™

Roaring Penguin Software's PPPoE is a freeware PPP over Ethernet client often used by ADSL subscribers running Linux or NetBSD. PPPoE contains a possibly remotely exploitable denial of service vulnerability in its handling of TCP packets when the Clamp_MSS option is used. If PPPoE recieves a malformed TCP packet with a "zero-length option", PPPoE will go into an infinite loop. As a result, the ppp connection being supported by PPPoE will time out and be terminated. A manual re-start is needed to regain functionality. This bug has been fixed by Roaring Penguin Software in a new version, see the solutions section.

Roaring Penguin Software's PPPoE is a freeware PPP over Ethernet client often used by ADSL subscribers running Linux or NetBSD. PPPoE contains a possibly remotely exploitable denial of service vulnerability in its handling of TCP packets when the Clamp_MSS option is used. If PPPoE recieves a malformed TCP packet with a "zero-length option", PPPoE will go into an infinite loop. As a result, the ppp connection being supported by PPPoE will time out and be terminated. A manual re-start is needed to regain functionality. This bug has been fixed by Roaring Penguin Software in a new version, see the solutions section.