CVE-1999-1111

critical

Description

Vulnerability in StackGuard before 1.21 allows remote attackers to bypass the Random and Terminator Canary security mechanisms by using a non-linear attack which directly modifies a pointer to a return address instead of using a buffer overflow to reach the return address entry itself.

References

https://exchange.xforce.ibmcloud.com/vulnerabilities/3524

http://www.securityfocus.com/bid/786

http://marc.info/?l=bugtraq&m=94218618329838&w=2

Details

Source: Mitre, NVD

Published: 1999-11-09

Updated: 2026-06-16

Risk Information

CVSS v2

Base Score: 7.5

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P

Severity: High

CVSS v3

Base Score: 9.8

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Severity: Critical

EPSS

EPSS: 0.00719