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Servers and applications

CVE-2005-4890

There is a possible tty hijacking in shadow 4.x before 4.1.5 and sudo 1.x before 1.7.4 via "su - user -c program". The user session can be escaped to the parent session by using the TIOCSTI ioctl to push characters into the input buffer to be read by the next process.

Severity
High 7.8
Published
4 Nov 2019
Last changed
16 Jun 2026
Added to UpHeron
1 Nov 2026
Exploit chance
0.6% in the next 30 daysHigher than 50% of CVEs. EPSS by FIRST, 10 Nov 2026
Sources
NVD

Affected software

SoftwareAffected versions
sudoServers and applications · cpe:a:sudo_project:sudo
  • From 1.3.0 up to 1.7.4

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2005-4890
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2005-4890