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Synopsis: Important: glibc security and bug fix update
Issue date: 2010-11-10
CVE Names: CVE-2010-3847 CVE-2010-3856
It was discovered that the glibc dynamic linker/loader did not handle
the $ORIGIN dynamic string token set in the LD_AUDIT environment
variable securely. A local attacker with write access to a file system
containing setuid or setgid binaries could use this flaw to escalate
their privileges. (CVE-2010-3847)
It was discovered that the glibc dynamic linker/loader did not perform
sufficient safety checks when loading dynamic shared objects (DSOs) to
provide callbacks for its auditing API during the execution of
privileged programs. A local attacker could use this flaw to escalate
their privileges via a carefully-chosen system DSO library containing
unsafe constructors. (CVE-2010-3856)
This update also fixes the following bugs:
* Previously, the generic implementation of the strstr() and memmem()
functions did not handle certain periodic patterns correctly and could
find a false positive match. This error has been fixed, and both
functions now work as expected. (BZ#643341)
* The "TCB_ALIGNMENT" value has been increased to 32 bytes to prevent
applications from crashing during symbol resolution on 64-bit systems
with support for Intel AVX vector registers. (BZ#643343)
SL 6.x
SRPMS:
glibc-2.12-1.7.el6_0.3.src.rpm
i386:
glibc-2.12-1.7.el6_0.3.i686.rpm
glibc-common-2.12-1.7.el6_0.3.i686.rpm
glibc-devel-2.12-1.7.el6_0.3.i686.rpm
glibc-headers-2.12-1.7.el6_0.3.i686.rpm
glibc-static-2.12-1.7.el6_0.3.i686.rpm
glibc-utils-2.12-1.7.el6_0.3.i686.rpm
nscd-2.12-1.7.el6_0.3.i686.rpm
x86_64:
glibc-2.12-1.7.el6_0.3.i686.rpm
glibc-2.12-1.7.el6_0.3.x86_64.rpm
glibc-common-2.12-1.7.el6_0.3.x86_64.rpm
glibc-devel-2.12-1.7.el6_0.3.i686.rpm
glibc-devel-2.12-1.7.el6_0.3.x86_64.rpm
glibc-headers-2.12-1.7.el6_0.3.x86_64.rpm
glibc-static-2.12-1.7.el6_0.3.i686.rpm
glibc-static-2.12-1.7.el6_0.3.x86_64.rpm
glibc-utils-2.12-1.7.el6_0.3.x86_64.rpm
nscd-2.12-1.7.el6_0.3.x86_64.rpm
-Connie Sieh
-Troy Dawson
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