Heap-based Buffer Overflow Affecting kernel package, versions *

Note: Versions mentioned in the description apply only to the upstream kernel package and not the kernel package as distributed by RHEL. See How to fix? for RHEL:7 relevant fixed versions and status.

The UDF filesystem implementation in the Linux kernel before 3.18.2 does not validate certain lengths, which allows local users to cause a denial of service (buffer over-read and system crash) via a crafted filesystem image, related to fs/udf/inode.c and fs/udf/symlink.c.

• http://www.securityfocus.com/bid/74964
• http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=a1d47b262952a45aae62bd49cfaf33dd76c11a2c
• http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=e159332b9af4b04d882dbcfe1bb0117f0a6d4b58
• http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=e237ec37ec154564f8690c5bd1795339955eeef9
• https://bugzilla.redhat.com/show_bug.cgi?id=1228229
• https://github.com/torvalds/linux/commit/a1d47b262952a45aae62bd49cfaf33dd76c11a2c
• https://github.com/torvalds/linux/commit/e159332b9af4b04d882dbcfe1bb0117f0a6d4b58
• https://github.com/torvalds/linux/commit/e237ec37ec154564f8690c5bd1795339955eeef9
• http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.18.2
• https://access.redhat.com/security/cve/CVE-2014-9728
• http://www.openwall.com/lists/oss-security/2015/06/02/7
• http://lists.opensuse.org/opensuse-security-announce/2015-07/msg00023.html
• http://lists.opensuse.org/opensuse-security-announce/2015-07/msg00049.html
• http://lists.opensuse.org/opensuse-security-announce/2015-08/msg00011.html
• http://lists.opensuse.org/opensuse-security-announce/2015-09/msg00018.html
• http://lists.opensuse.org/opensuse-security-announce/2015-09/msg00021.html