CVE-1999-1111
HighExploitation Probability (EPSS)
High risk76th percentile - higher than 76% of all known CVEs
Summary
Vulnerability in StackGuard before version 1.21 allows remote attackers to bypass the Random and Terminator Canary security mechanisms by using a non-linear attack that directly modifies a pointer to a return address.
Risk Assessment
Attackers can exploit this vulnerability to gain control over applications, potentially leading to data leakage or execution of malicious code.
Recommendation
It is recommended to update StackGuard to the latest version to protect against these attacks.
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Original NVD description (English source)
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.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS

