glibc: CVE-2015-8777

The process_envvars function in elf/rtld.c in the GNU C Library (aka glibc or
libc6) before 2.23 allows local users to bypass a pointer-guarding protection
mechanism via a zero value of the LD_POINTER_GUARD environment variable.

(From OE-Core rev: 22570ba08d7c6157aec58764c73b1134405b0252)

References:
https://sourceware.org/bugzilla/show_bug.cgi?id=18928
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-8777

Reproducing steps available at:
http://hmarco.org/bugs/glibc_ptr_mangle_weakness.html
CVE request: http://seclists.org/oss-sec/2015/q3/504

Signed-off-by: Sona Sarmadi <sona.sarmadi@enea.com>
Signed-off-by: Tudor Florea <tudor.florea@enea.com>

1 files changed, 1 insertions, 0 deletions

diff --git a/meta/recipes-core/glibc/glibc_2.20.bb b/meta/recipes-core/glibc/glibc_2.20.bb
index 4b0e927bfa..7bf4dbabf7 100644
--- a/meta/recipes-core/glibc/glibc_2.20.bb
+++ b/meta/recipes-core/glibc/glibc_2.20.bb
@@ -52,6 +52,7 @@ CVEPATCHES = "\
         file://CVE-2014-9761_1.patch \
         file://CVE-2014-9761_2.patch \
         file://CVE-2015-8776.patch \
+        file://CVE-2015-8777.patch \
     "
 LIC_FILES_CHKSUM = "file://LICENSES;md5=e9a558e243b36d3209f380deb394b213 \
       file://COPYING;md5=b234ee4d69f5fce4486a80fdaf4a4263 \