2874 : GNU Screen Local Overflow Privilege Escalation
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Timeline

Disclosure Date
2003-11-26

Description

A local overflow exists in GNU Screen. The w_NumArgs signed integer in ansi.c can be overflowed when the "< MAXARGS" protection fails to sanitize the input resulting in an integer overflow. With a specially crafted exploit, a local attacker can gain setgid-utmp or setuid-root privileges.

Classification

Attack Type: Input Manipulation
Impact: Loss of Integrity

Products

GNU	Screen	3.9.x
		4.0.1

References

Secunia Advisory ID: 10310
ISS X-Force ID: 13857
CVE ID: 2003-0972 (see also: NVD)
Bugtraq ID: 9117
Mail List Post: http://archives.neohapsis.com/archives/bugtraq/2003-11/0322.html
Vendor Specific Advisory URL: http://www.openpkg.org/security/OpenPKG-SA-2003.050-screen.txt

Tools & Filters

	14095 15245

Credit

Unknown or Incomplete

CVSSv2 Score

CVSSv2 Base Score = 10.0
Source: nvd.nist.gov | Generated: 2003-12-31 | Disagree?

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