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CVE-2012-3406

Status Candidate

Overview

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.

Related Files

Mandriva Linux Security Advisory 2015-168
Posted Mar 31, 2015
Authored by Mandriva | Site mandriva.com

Mandriva Linux Security Advisory 2015-168 - Updated glibc packages fix multiple security vulnerabilities.

tags | advisory, vulnerability
systems | linux, mandriva
advisories | CVE-2012-3406, CVE-2014-0475, CVE-2014-4043, CVE-2014-5119, CVE-2014-6040, CVE-2014-7817, CVE-2014-9402, CVE-2015-1472, CVE-2015-1473
MD5 | b7bc646306e46a1f68447be66b599961
Gentoo Linux Security Advisory 201503-04
Posted Mar 9, 2015
Authored by Gentoo | Site security.gentoo.org

Gentoo Linux Security Advisory 201503-4 - Multiple vulnerabilities have been found in GNU C Library, the worst of which allowing a local attacker to execute arbitrary code or cause a Denial of Service. Versions less than 2.19-r1 are affected.

tags | advisory, denial of service, arbitrary, local, vulnerability
systems | linux, gentoo
advisories | CVE-2012-3404, CVE-2012-3405, CVE-2012-3406, CVE-2012-3480, CVE-2012-4412, CVE-2012-4424, CVE-2012-6656, CVE-2013-0242, CVE-2013-1914, CVE-2013-2207, CVE-2013-4237, CVE-2013-4332, CVE-2013-4458, CVE-2013-4788, CVE-2014-4043, CVE-2015-0235
MD5 | f85fc2ac92288c38034eb6f805166308
Debian Security Advisory 3169-1
Posted Feb 24, 2015
Authored by Debian | Site debian.org

Debian Linux Security Advisory 3169-1 - Several vulnerabilities have been fixed in eglibc, Debian's version of the GNU C library.

tags | advisory, vulnerability
systems | linux, debian
advisories | CVE-2012-3406, CVE-2013-7424, CVE-2014-4043, CVE-2014-9402, CVE-2015-1472, CVE-2015-1473
MD5 | 4db927bf38478ac3ca12626d9dbf18ee
Mandriva Linux Security Advisory 2013-162
Posted May 8, 2013
Authored by Mandriva | Site mandriva.com

Mandriva Linux Security Advisory 2013-162 - Integer overflow in the vfprintf function in stdio-common/vfprintf.c in glibc 2.14 and other versions allows context-dependent attackers to bypass the FORTIFY_SOURCE protection mechanism, conduct format string attacks, and write to arbitrary memory via a large number of arguments. Multiple errors in glibc's formatted printing functionality could allow an attacker to bypass FORTIFY_SOURCE protections and execute arbitrary code using a format string flaw in an application, even though these protections are expected to limit the impact of such flaws to an application abort. Various other issues were also addressed. The updated packages have been patched to correct these issues.

tags | advisory, overflow, arbitrary
systems | linux, mandriva
advisories | CVE-2012-0864, CVE-2012-3404, CVE-2012-3405, CVE-2012-3406, CVE-2012-3480, CVE-2013-0242, CVE-2013-1914
MD5 | c79ae96e6d7bb965b8852b21324fc1d1
VMware Security Advisory 2012-0018
Posted Dec 22, 2012
Authored by VMware | Site vmware.com

VMware Security Advisory 2012-0018 - VMware has updated vCenter Server Appliance (vCSA) and ESX to address multiple security vulnerabilities

tags | advisory, vulnerability
advisories | CVE-2009-5029, CVE-2009-5064, CVE-2010-0830, CVE-2011-1089, CVE-2011-4609, CVE-2012-0864, CVE-2012-3404, CVE-2012-3405, CVE-2012-3406, CVE-2012-3480, CVE-2012-6324, CVE-2012-6325
MD5 | d55d388c600c6699eb18474929d7afbd
Ubuntu Security Notice USN-1589-1
Posted Oct 2, 2012
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 1589-1 - It was discovered that positional arguments to the printf() family of functions were not handled properly in the GNU C Library. An attacker could possibly use this to cause a stack-based buffer overflow, creating a denial of service or possibly execute arbitrary code. It was discovered that multiple integer overflows existed in the strtod(), strtof() and strtold() functions in the GNU C Library. An attacker could possibly use this to trigger a stack-based buffer overflow, creating a denial of service or possibly execute arbitrary code. Various other issues were also addressed.

tags | advisory, denial of service, overflow, arbitrary
systems | linux, ubuntu
advisories | CVE-2012-3480, CVE-2012-3404, CVE-2012-3405, CVE-2012-3406, CVE-2012-3480
MD5 | fcecec45446bfa743d8a2cbb1840b648
Red Hat Security Advisory 2012-1200-01
Posted Aug 24, 2012
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2012-1200-01 - The rhev-hypervisor6 package provides a Red Hat Enterprise Virtualization Hypervisor ISO disk image. The Red Hat Enterprise Virtualization Hypervisor is a dedicated Kernel-based Virtual Machine hypervisor. It includes everything necessary to run and manage virtual machines: A subset of the Red Hat Enterprise Linux operating environment and the Red Hat Enterprise Virtualization Agent. Note: Red Hat Enterprise Virtualization Hypervisor is only available for the Intel 64 and AMD64 architectures with virtualization extensions. Multiple errors in glibc's formatted printing functionality could allow an attacker to bypass FORTIFY_SOURCE protections and execute arbitrary code using a format string flaw in an application, even though these protections are expected to limit the impact of such flaws to an application abort.

tags | advisory, arbitrary, kernel
systems | linux, redhat
advisories | CVE-2012-3404, CVE-2012-3405, CVE-2012-3406
MD5 | cab82f68bceb98c22f9460a18e98eb4f
Red Hat Security Advisory 2012-1185-01
Posted Aug 21, 2012
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2012-1185-01 - The rhev-hypervisor5 package provides a Red Hat Enterprise Virtualization Hypervisor ISO disk image. The Red Hat Enterprise Virtualization Hypervisor is a dedicated Kernel-based Virtual Machine hypervisor. It includes everything necessary to run and manage virtual machines: A subset of the Red Hat Enterprise Linux operating environment and the Red Hat Enterprise Virtualization Agent. Note: Red Hat Enterprise Virtualization Hypervisor is only available for the Intel 64 and AMD64 architectures with virtualization extensions. It was discovered that the formatted printing functionality in glibc did not properly restrict the use of alloca(). This could allow an attacker to bypass FORTIFY_SOURCE protections and execute arbitrary code using a format string flaw in an application, even though these protections are expected to limit the impact of such flaws to an application abort.

tags | advisory, arbitrary, kernel
systems | linux, redhat
advisories | CVE-2012-3406
MD5 | 64bf8f27582652bc6258eda070bc5ad9
Red Hat Security Advisory 2012-1098-01
Posted Jul 19, 2012
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2012-1098-01 - The glibc packages provide the standard C and standard math libraries used by multiple programs on the system. Without these libraries, the Linux system cannot function properly. Multiple errors in glibc's formatted printing functionality could allow an attacker to bypass FORTIFY_SOURCE protections and execute arbitrary code using a format string flaw in an application, even though these protections are expected to limit the impact of such flaws to an application abort.

tags | advisory, arbitrary
systems | linux, redhat
advisories | CVE-2012-3404, CVE-2012-3405, CVE-2012-3406
MD5 | df609c89636fdcb893f18d5642bf564a
Red Hat Security Advisory 2012-1097-01
Posted Jul 19, 2012
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2012-1097-01 - The glibc packages provide the standard C and standard math libraries used by multiple programs on the system. Without these libraries, the Linux system cannot function properly. It was discovered that the formatted printing functionality in glibc did not properly restrict the use of alloca(). This could allow an attacker to bypass FORTIFY_SOURCE protections and execute arbitrary code using a format string flaw in an application, even though these protections are expected to limit the impact of such flaws to an application abort.

tags | advisory, arbitrary
systems | linux, redhat
advisories | CVE-2012-3406
MD5 | 52c3f6425345cdf712fcfe1d0f139e65
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