CVE Catalog

CVE-1999-1111

High
Published: Updated: Translated: NVD NIST

Exploitation Probability (EPSS)

High risk
1.82%

76th 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.

Related vulnerabilities

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