CVE-2005-0023

GNOME libzvt2/libvte4 - Info Disclosure

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2005-0023. PoCs published by Paul Szabo.

AI-analyzed exploit summary This exploit demonstrates a local UTMP hostname spoofing vulnerability in gnome-pty-helper by manipulating environment variables and leveraging the helper process to write arbitrary UTMP records. It requires compilation against gnome-libs-1.4.2/zvt and uses socket pairs to communicate with the SUID gnome-pty-helper binary.

Description

gnome-pty-helper in GNOME libzvt2 and libvte4 allows local users to spoof the logon hostname via a modified DISPLAY environment variable. NOTE: the severity of this issue has been disputed.

Exploits (1)

exploitdb WORKING POC VERIFIED
by Paul Szabo · clocallinux
https://www.exploit-db.com/exploits/26321

This exploit demonstrates a local UTMP hostname spoofing vulnerability in gnome-pty-helper by manipulating environment variables and leveraging the helper process to write arbitrary UTMP records. It requires compilation against gnome-libs-1.4.2/zvt and uses socket pairs to communicate with the SUID gnome-pty-helper binary.

Classification
Working Poc 90%
Attack Type
Other
Complexity
Moderate
Reliability
Reliable
Target: gnome-pty-helper (gnome-libs-1.4.2)
No auth needed
Prerequisites: Access to a system with gnome-pty-helper installed · Ability to compile the exploit against gnome-libs-1.4.2/zvt
devstral-2 · analyzed Feb 16, 2026 Full analysis →

References (7)

Core 7
Core References
Mailing List mailing-list x_refsource_bugtraq
http://marc.info/?l=bugtraq&m=112879572407250&w=2
Exploit vdb-entry x_refsource_bid
http://www.securityfocus.com/bid/15004
Third Party Advisory, VDB Entry vdb-entry x_refsource_xf
https://exchange.xforce.ibmcloud.com/vulnerabilities/22496
Vendor Advisory third-party-advisory x_refsource_secunia
http://secunia.com/advisories/17023
Third Party Advisory vdb-entry x_refsource_vupen
http://www.vupen.com/english/advisories/2005/1931
Issue Tracking x_refsource_misc
http://bugzilla.gnome.org/show_bug.cgi?id=317312

Scores

EPSS 0.0089
EPSS Percentile 54.8%

Details

Status published
Products (2)
gnome/libvte4
gnome/libzvt2 1.4.2.19
Published Oct 05, 2005
Tracked Since Feb 18, 2026