CVE-2015-1345 – grep: heap buffer overrun

https://notcve.org/view.php?id=CVE-2015-1345

The bmexec_trans function in kwset.c in grep 2.19 through 2.21 allows local users to cause a denial of service (out-of-bounds heap read and crash) via crafted input when using the -F option. La función bmexec_trans en kwset.c en grep 2.19 hasta 2.21 permite a usuarios locales causar una denegación de servicio (lectura de la memoria dinámica fuera de rango y caída) a través de entradas manipuladas cuando se utiliza la opción -F. A heap-based buffer overflow flaw was found in the way grep processed certain pattern and text combinations. An attacker able to trick a user into running grep on specially crafted input could use this flaw to crash grep or, potentially, read from uninitialized memory. • http://debbugs.gnu.org/cgi/bugreport.cgi?bug=19563 http://git.savannah.gnu.org/cgit/grep.git/commit/?id=83a95bd8c8561875b948cadd417c653dbe7ef2e2 http://lists.opensuse.org/opensuse-updates/2015-02/msg00037.html http://rhn.redhat.com/errata/RHSA-2015-1447.html http://www.openwall.com/lists/oss-security/2015/01/22/10 http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.html http://www.securityfocus.com/bid/72281 https://access.redhat.com/security/cve/CVE-2015-1345 • CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer CWE-125: Out-of-bounds Read •