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CVE-2016-0774

Status Candidate

Overview

The (1) pipe_read and (2) pipe_write implementations in fs/pipe.c in a certain Linux kernel backport in the linux package before 3.2.73-2+deb7u3 on Debian wheezy and the kernel package before 3.10.0-229.26.2 on Red Hat Enterprise Linux (RHEL) 7.1 do not properly consider the side effects of failed __copy_to_user_inatomic and __copy_from_user_inatomic calls, which allows local users to cause a denial of service (system crash) or possibly gain privileges via a crafted application, aka an "I/O vector array overrun." NOTE: this vulnerability exists because of an incorrect fix for CVE-2015-1805.

Related Files

Red Hat Security Advisory 2016-0617-01
Posted Apr 12, 2016
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2016-0617-01 - The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fix: It was found that the fix for CVE-2015-1805 incorrectly kept buffer offset and buffer length in sync on a failed atomic read, potentially resulting in a pipe buffer state corruption. A local, unprivileged user could use this flaw to crash the system or leak kernel memory to user space.

tags | advisory, kernel, local
systems | linux, redhat
advisories | CVE-2016-0774
SHA-256 | 2246baeb82266ecd6e864496d3978886666526381708e4420ff443c9d6f1fa2a
Red Hat Security Advisory 2016-0494-01
Posted Mar 23, 2016
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2016-0494-01 - The kernel packages contain the Linux kernel, the core of any Linux operating system. It was found that the fix for CVE-2015-1805 incorrectly kept buffer offset and buffer length in sync on a failed atomic read, potentially resulting in a pipe buffer state corruption. A local, unprivileged user could use this flaw to crash the system or leak kernel memory to user space. The security impact of this issue was discovered by Red Hat.

tags | advisory, kernel, local
systems | linux, redhat
advisories | CVE-2016-0774
SHA-256 | 80c54b65ae506f1bd02a2a902ef6537ba749f2d08c2885f9ed60f7d6ef16502f
Debian Security Advisory 3503-1
Posted Mar 4, 2016
Authored by Debian | Site debian.org

Debian Linux Security Advisory 3503-1 - Several vulnerabilities have been discovered in the Linux kernel that may lead to a privilege escalation, denial of service, information leak or data loss.

tags | advisory, denial of service, kernel, vulnerability
systems | linux, debian
advisories | CVE-2013-4312, CVE-2015-7566, CVE-2015-8767, CVE-2015-8785, CVE-2015-8812, CVE-2015-8816, CVE-2015-8830, CVE-2016-0723, CVE-2016-0774, CVE-2016-2069, CVE-2016-2384, CVE-2016-2543, CVE-2016-2544, CVE-2016-2545, CVE-2016-2546, CVE-2016-2547, CVE-2016-2548, CVE-2016-2549, CVE-2016-2550
SHA-256 | 25d671ba26bfc929fa9034f00895f1f88acf0c87420ac9187d367f3130e8b078
Red Hat Security Advisory 2016-0103-01
Posted Feb 3, 2016
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2016-0103-01 - The kernel packages contain the Linux kernel, the core of any Linux operating system. It was found that the x86 ISA is prone to a denial of service attack inside a virtualized environment in the form of an infinite loop in the microcode due to the way delivering of benign exceptions such as #DB is handled. A privileged user inside a guest could use this flaw to create denial of service conditions on the host kernel. A use-after-free flaw was found in the way the Linux kernel's key management subsystem handled keyring object reference counting in certain error path of the join_session_keyring() function. A local, unprivileged user could use this flaw to escalate their privileges on the system.

tags | advisory, denial of service, x86, kernel, local
systems | linux, redhat
advisories | CVE-2015-8104, CVE-2016-0728, CVE-2016-0774
SHA-256 | 9927db3d6722b1df950202392e8bc511c9d1a2eb779e99e2d270206e4e63aa86
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