CVE-2005-1807
Description
The Data function in class.smtp.php in PHPMailer 1.7.2 and earlier allows remote attackers to cause a denial of service (infinite loop leading to memory and CPU consumption) via a long header field.
Predictions
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.
✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
Exploits
Public proof-of-concept code below. AS-IS, for defenders and authorised testing only.
Exploit-DB
PHPMailer 1.7 - 'Data()' Remote Denial of Service
source: https://www.securityfocus.com/bid/13805/info
PHPMailer is affected by a remote denial-of-service vulnerability.
An attacker can send an email message with a malformed header field to initiate an infinite loop in the application. This eventually leads to a crash due to resource exhaustion.
PHPMailer 1.72 and prior versions are affected by this issue.
From: AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA... x 998 OS impact
Debian Fixed 5 releases
| Version | Status | Fixed in |
|---|---|---|
| trixie | Fixed | 1.73 |
| sid | Fixed | 1.73 |
| forky | Fixed | 1.73 |
| bullseye | Fixed | 1.73 |
| bookworm | Fixed | 1.73 |
References
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.