CVE-2012-3406
glibc: printf() unbound alloca() usage in case of positional parameters + many format specs
Severity Score
Exploit Likelihood
Affected Versions
Public Exploits
0Exploited in Wild
-Decision
Descriptions
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.
La función vfprintf en stdio-common/vfprintf.c en GNU C Library (también conocido como glibc) 2.5, 2.12 y probablemente otras versiones no "restringe debidamente el uso de" la función alloca cuando asigna el array SPECS, lo que permite a atacantes dependientes de contexto evadir el mecanismo de protección de cadenas de formato FORTIFY_SOURCE y causar una denegación de servicio (caída) o posiblemente ejecutar código arbitrario a través de una cadena de formato manipulada mediante el uso de parámetros posicionales y un gran número de especificadores de formato, una vulnerabilidad diferente a CVE-2012-3404 y CVE-2012-3405.
CVSS Scores
SSVC
- Decision:-
Timeline
- 2012-06-14 CVE Reserved
- 2012-07-19 CVE Published
- 2023-03-07 EPSS Updated
- 2024-08-06 CVE Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
- CWE-264: Permissions, Privileges, and Access Controls
CAPEC
References (10)
| URL | Tag | Source |
|---|---|---|
| http://www.openwall.com/lists/oss-security/2012/07/11/17 | Mailing List |
|
| https://bugzilla.redhat.com/attachment.cgi?id=594722 | X_refsource_confirm |
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|---|---|
| http://rhn.redhat.com/errata/RHSA-2012-1097.html | 2019-04-22 | |
| http://rhn.redhat.com/errata/RHSA-2012-1098.html | 2019-04-22 | |
| http://rhn.redhat.com/errata/RHSA-2012-1185.html | 2019-04-22 | |
| http://rhn.redhat.com/errata/RHSA-2012-1200.html | 2019-04-22 | |
| http://www.ubuntu.com/usn/USN-1589-1 | 2019-04-22 | |
| https://bugzilla.redhat.com/show_bug.cgi?id=826943 | 2012-08-23 | |
| https://security.gentoo.org/glsa/201503-04 | 2019-04-22 | |
| https://access.redhat.com/security/cve/CVE-2012-3406 | 2012-08-23 |
Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Gnu Search vendor "Gnu" | Glibc Search vendor "Gnu" for product "Glibc" | 2.5 Search vendor "Gnu" for product "Glibc" and version "2.5" | - |
Affected
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| Gnu Search vendor "Gnu" | Glibc Search vendor "Gnu" for product "Glibc" | 2.12 Search vendor "Gnu" for product "Glibc" and version "2.12" | - |
Affected
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| Redhat Search vendor "Redhat" | Enterprise Virtualization Search vendor "Redhat" for product "Enterprise Virtualization" | 3.0 Search vendor "Redhat" for product "Enterprise Virtualization" and version "3.0" | - |
Affected
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| Canonical Search vendor "Canonical" | Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux" | 8.04 Search vendor "Canonical" for product "Ubuntu Linux" and version "8.04" | lts |
Affected
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| Canonical Search vendor "Canonical" | Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux" | 10.04 Search vendor "Canonical" for product "Ubuntu Linux" and version "10.04" | lts |
Affected
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| Canonical Search vendor "Canonical" | Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux" | 11.04 Search vendor "Canonical" for product "Ubuntu Linux" and version "11.04" | - |
Affected
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| Canonical Search vendor "Canonical" | Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux" | 11.10 Search vendor "Canonical" for product "Ubuntu Linux" and version "11.10" | - |
Affected
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| Canonical Search vendor "Canonical" | Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux" | 12.04 Search vendor "Canonical" for product "Ubuntu Linux" and version "12.04" | lts |
Affected
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| Redhat Search vendor "Redhat" | Enterprise Linux Search vendor "Redhat" for product "Enterprise Linux" | 5 Search vendor "Redhat" for product "Enterprise Linux" and version "5" | - |
Affected
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| Redhat Search vendor "Redhat" | Enterprise Linux Search vendor "Redhat" for product "Enterprise Linux" | 6.0 Search vendor "Redhat" for product "Enterprise Linux" and version "6.0" | - |
Affected
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