CVE-2012-3406 | Date: (C)2014-02-11 (M)2023-12-22 |
The vfprintf function in stdio-common/vfprintf.c in GNU C Library (aka glibc) 2.5, 2.12, and probably other versions does not "properly restrict the use of" the alloca function when allocating the SPECS array, which allows context-dependent attackers to bypass the FORTIFY_SOURCE format-string protection mechanism and cause a denial of service (crash) or possibly execute arbitrary code via a crafted format string using positional parameters and a large number of format specifiers, a different vulnerability than CVE-2012-3404 and CVE-2012-3405.
CVSS Score and Metrics +CVSS Score and Metrics -CVSS V2 Severity: |
CVSS Score : 6.8 |
Exploit Score: 8.6 |
Impact Score: 6.4 |
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CVSS V2 Metrics: |
Access Vector: NETWORK |
Access Complexity: MEDIUM |
Authentication: NONE |
Confidentiality: PARTIAL |
Integrity: PARTIAL |
Availability: PARTIAL |
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