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CVE-2016-1583

Status Candidate

Overview

The ecryptfs_privileged_open function in fs/ecryptfs/kthread.c in the Linux kernel before 4.6.3 allows local users to gain privileges or cause a denial of service (stack memory consumption) via vectors involving crafted mmap calls for /proc pathnames, leading to recursive pagefault handling.

Related Files

Red Hat Security Advisory 2017-2760-01
Posted Sep 19, 2017
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2017-2760-01 - The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fix: It was found that stacking a file system over procfs in the Linux kernel could lead to a kernel stack overflow due to deep nesting, as demonstrated by mounting ecryptfs over procfs and creating a recursion by mapping /proc/environ. An unprivileged, local user could potentially use this flaw to escalate their privileges on the system.

tags | advisory, overflow, kernel, local
systems | linux, redhat
advisories | CVE-2016-1583
MD5 | b0026adac8be54ca2168544c7eceabc0
Red Hat Security Advisory 2016-2766-01
Posted Nov 16, 2016
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2016-2766-01 - The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fix: It was found that stacking a file system over procfs in the Linux kernel could lead to a kernel stack overflow due to deep nesting, as demonstrated by mounting ecryptfs over procfs and creating a recursion by mapping /proc/environ. An unprivileged, local user could potentially use this flaw to escalate their privileges on the system.

tags | advisory, overflow, kernel, local
systems | linux, redhat
advisories | CVE-2016-1583, CVE-2016-2143
MD5 | 2f0c89292b11b2495035d28c1db5ae5f
Red Hat Security Advisory 2016-2124-01
Posted Oct 28, 2016
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2016-2124-01 - The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fix: A race condition was found in the way the Linux kernel's memory subsystem handled the copy-on-write breakage of private read-only memory mappings. An unprivileged, local user could use this flaw to gain write access to otherwise read-only memory mappings and thus increase their privileges on the system.

tags | advisory, kernel, local
systems | linux, redhat
advisories | CVE-2016-1583, CVE-2016-5195
MD5 | 07b68525c33d0f626da8f190a7337e24
Debian Security Advisory 3607-1
Posted Jun 28, 2016
Authored by Debian | Site debian.org

Debian Linux Security Advisory 3607-1 - Several vulnerabilities have been discovered in the Linux kernel that may lead to a privilege escalation, denial of service or information leaks.

tags | advisory, denial of service, kernel, vulnerability
systems | linux, debian
advisories | CVE-2015-7515, CVE-2016-0821, CVE-2016-1237, CVE-2016-1583, CVE-2016-2117, CVE-2016-2143, CVE-2016-2184, CVE-2016-2185, CVE-2016-2186, CVE-2016-2187, CVE-2016-3070, CVE-2016-3134, CVE-2016-3136, CVE-2016-3137, CVE-2016-3138, CVE-2016-3140, CVE-2016-3156, CVE-2016-3157, CVE-2016-3672, CVE-2016-3951, CVE-2016-3955, CVE-2016-3961, CVE-2016-4470, CVE-2016-4482, CVE-2016-4485, CVE-2016-4486, CVE-2016-4565, CVE-2016-4569
MD5 | 97be339593413497c6543462dc22c534
Linux ecryptfs Stack Overflow
Posted Jun 20, 2016
Authored by Jann Horn, Google Security Research

There is a stack overflow in Linux via ecryptfs and /proc/$pid/environ.

tags | exploit, overflow
systems | linux
advisories | CVE-2016-1583
MD5 | b34d12184e35e91b435e7e57cffa274b
Ubuntu Security Notice USN-3008-1
Posted Jun 10, 2016
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3008-1 - Jann Horn discovered that eCryptfs improperly attempted to use the mmap() handler of a lower filesystem that did not implement one, causing a recursive page fault to occur. A local unprivileged attacker could use to cause a denial of service (system crash) or possibly execute arbitrary code with administrative privileges.

tags | advisory, denial of service, arbitrary, local
systems | linux, ubuntu
advisories | CVE-2016-1583
MD5 | 7eeedd9f2ecaeec22ccdfb6e7d2950f9
Ubuntu Security Notice USN-3007-1
Posted Jun 10, 2016
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3007-1 - Justin Yackoski discovered that the Atheros L2 Ethernet Driver in the Linux kernel incorrectly enables scatter/gather I/O. A remote attacker could use this to obtain potentially sensitive information from kernel memory. Jann Horn discovered that eCryptfs improperly attempted to use the mmap() handler of a lower filesystem that did not implement one, causing a recursive page fault to occur. A local unprivileged attacker could use to cause a denial of service (system crash) or possibly execute arbitrary code with administrative privileges. Various other issues were also addressed.

tags | advisory, remote, denial of service, arbitrary, kernel, local
systems | linux, ubuntu
advisories | CVE-2015-8839, CVE-2016-1583, CVE-2016-2117, CVE-2016-2187, CVE-2016-3961, CVE-2016-4485, CVE-2016-4486, CVE-2016-4558, CVE-2016-4565, CVE-2016-4581
MD5 | 03730e211140e8b9526e2022fc779d03
Ubuntu Security Notice USN-3006-1
Posted Jun 10, 2016
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3006-1 - Justin Yackoski discovered that the Atheros L2 Ethernet Driver in the Linux kernel incorrectly enables scatter/gather I/O. A remote attacker could use this to obtain potentially sensitive information from kernel memory. Jann Horn discovered that eCryptfs improperly attempted to use the mmap() handler of a lower filesystem that did not implement one, causing a recursive page fault to occur. A local unprivileged attacker could use to cause a denial of service (system crash) or possibly execute arbitrary code with administrative privileges. Various other issues were also addressed.

tags | advisory, remote, denial of service, arbitrary, kernel, local
systems | linux, ubuntu
advisories | CVE-2015-8839, CVE-2016-1583, CVE-2016-2117, CVE-2016-2187, CVE-2016-3961, CVE-2016-4485, CVE-2016-4486, CVE-2016-4558, CVE-2016-4565, CVE-2016-4581
MD5 | 1cf19a3e54af2d5c62e48cb6d502a39b
Ubuntu Security Notice USN-3005-1
Posted Jun 10, 2016
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3005-1 - Justin Yackoski discovered that the Atheros L2 Ethernet Driver in the Linux kernel incorrectly enables scatter/gather I/O. A remote attacker could use this to obtain potentially sensitive information from kernel memory. Jann Horn discovered that eCryptfs improperly attempted to use the mmap() handler of a lower filesystem that did not implement one, causing a recursive page fault to occur. A local unprivileged attacker could use to cause a denial of service (system crash) or possibly execute arbitrary code with administrative privileges. Various other issues were also addressed.

tags | advisory, remote, denial of service, arbitrary, kernel, local
systems | linux, ubuntu
advisories | CVE-2015-8839, CVE-2016-1583, CVE-2016-2117, CVE-2016-2187, CVE-2016-3961, CVE-2016-4485, CVE-2016-4486, CVE-2016-4558, CVE-2016-4565, CVE-2016-4581
MD5 | 0b20a29980c0fc01d150ae1f24c3e89b
Ubuntu Security Notice USN-3004-1
Posted Jun 10, 2016
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3004-1 - Justin Yackoski discovered that the Atheros L2 Ethernet Driver in the Linux kernel incorrectly enables scatter/gather I/O. A remote attacker could use this to obtain potentially sensitive information from kernel memory. Jann Horn discovered that eCryptfs improperly attempted to use the mmap() handler of a lower filesystem that did not implement one, causing a recursive page fault to occur. A local unprivileged attacker could use to cause a denial of service (system crash) or possibly execute arbitrary code with administrative privileges. Various other issues were also addressed.

tags | advisory, remote, denial of service, arbitrary, kernel, local
systems | linux, ubuntu
advisories | CVE-2015-4004, CVE-2016-1583, CVE-2016-2117, CVE-2016-2187, CVE-2016-3672, CVE-2016-3951, CVE-2016-3955, CVE-2016-3961, CVE-2016-4485, CVE-2016-4486, CVE-2016-4565, CVE-2016-4581
MD5 | a904a877ae487b14c873a6fe2c3be401
Ubuntu Security Notice USN-3003-1
Posted Jun 10, 2016
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3003-1 - Justin Yackoski discovered that the Atheros L2 Ethernet Driver in the Linux kernel incorrectly enables scatter/gather I/O. A remote attacker could use this to obtain potentially sensitive information from kernel memory. Jann Horn discovered that eCryptfs improperly attempted to use the mmap() handler of a lower filesystem that did not implement one, causing a recursive page fault to occur. A local unprivileged attacker could use to cause a denial of service (system crash) or possibly execute arbitrary code with administrative privileges. Various other issues were also addressed.

tags | advisory, remote, denial of service, arbitrary, kernel, local
systems | linux, ubuntu
advisories | CVE-2015-4004, CVE-2016-1583, CVE-2016-2117, CVE-2016-2187, CVE-2016-3672, CVE-2016-3951, CVE-2016-3955, CVE-2016-3961, CVE-2016-4485, CVE-2016-4486, CVE-2016-4565, CVE-2016-4581
MD5 | 6d0fed58dd07b9e662684025c4f4dde2
Ubuntu Security Notice USN-3002-1
Posted Jun 10, 2016
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3002-1 - Justin Yackoski discovered that the Atheros L2 Ethernet Driver in the Linux kernel incorrectly enables scatter/gather I/O. A remote attacker could use this to obtain potentially sensitive information from kernel memory. Jann Horn discovered that eCryptfs improperly attempted to use the mmap() handler of a lower filesystem that did not implement one, causing a recursive page fault to occur. A local unprivileged attacker could use to cause a denial of service (system crash) or possibly execute arbitrary code with administrative privileges. Various other issues were also addressed.

tags | advisory, remote, denial of service, arbitrary, kernel, local
systems | linux, ubuntu
advisories | CVE-2015-4004, CVE-2016-1583, CVE-2016-2117, CVE-2016-2187, CVE-2016-3672, CVE-2016-3951, CVE-2016-3955, CVE-2016-3961, CVE-2016-4485, CVE-2016-4486, CVE-2016-4565, CVE-2016-4581
MD5 | d24a1e570681e6770c916a43c64167c8
Ubuntu Security Notice USN-3001-1
Posted Jun 10, 2016
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3001-1 - Justin Yackoski discovered that the Atheros L2 Ethernet Driver in the Linux kernel incorrectly enables scatter/gather I/O. A remote attacker could use this to obtain potentially sensitive information from kernel memory. Jann Horn discovered that eCryptfs improperly attempted to use the mmap() handler of a lower filesystem that did not implement one, causing a recursive page fault to occur. A local unprivileged attacker could use to cause a denial of service (system crash) or possibly execute arbitrary code with administrative privileges. Various other issues were also addressed.

tags | advisory, remote, denial of service, arbitrary, kernel, local
systems | linux, ubuntu
advisories | CVE-2015-4004, CVE-2016-1583, CVE-2016-2117, CVE-2016-2187, CVE-2016-3672, CVE-2016-3951, CVE-2016-3955, CVE-2016-3961, CVE-2016-4485, CVE-2016-4486, CVE-2016-4565, CVE-2016-4581
MD5 | 46d424b20b51340739c8c700671ae181
Ubuntu Security Notice USN-3000-1
Posted Jun 10, 2016
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3000-1 - Justin Yackoski discovered that the Atheros L2 Ethernet Driver in the Linux kernel incorrectly enables scatter/gather I/O. A remote attacker could use this to obtain potentially sensitive information from kernel memory. Jann Horn discovered that eCryptfs improperly attempted to use the mmap() handler of a lower filesystem that did not implement one, causing a recursive page fault to occur. A local unprivileged attacker could use to cause a denial of service (system crash) or possibly execute arbitrary code with administrative privileges. Various other issues were also addressed.

tags | advisory, remote, denial of service, arbitrary, kernel, local
systems | linux, ubuntu
advisories | CVE-2015-4004, CVE-2016-1583, CVE-2016-2117, CVE-2016-2187, CVE-2016-3136, CVE-2016-3137, CVE-2016-3140, CVE-2016-3672, CVE-2016-3689, CVE-2016-3951, CVE-2016-3955, CVE-2016-4485, CVE-2016-4486, CVE-2016-4581
MD5 | 27befe60a88064f1a5e65935b4a9dd76
Ubuntu Security Notice USN-2999-1
Posted Jun 10, 2016
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 2999-1 - Jann Horn discovered that eCryptfs improperly attempted to use the mmap() handler of a lower filesystem that did not implement one, causing a recursive page fault to occur. A local unprivileged attacker could use to cause a denial of service (system crash) or possibly execute arbitrary code with administrative privileges.

tags | advisory, denial of service, arbitrary, local
systems | linux, ubuntu
advisories | CVE-2016-1583
MD5 | c8879322fd60de30c24a1da8f4619fe1
Ubuntu Security Notice USN-2998-1
Posted Jun 10, 2016
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 2998-1 - Justin Yackoski discovered that the Atheros L2 Ethernet Driver in the Linux kernel incorrectly enables scatter/gather I/O. A remote attacker could use this to obtain potentially sensitive information from kernel memory. Jann Horn discovered that eCryptfs improperly attempted to use the mmap() handler of a lower filesystem that did not implement one, causing a recursive page fault to occur. A local unprivileged attacker could use to cause a denial of service (system crash) or possibly execute arbitrary code with administrative privileges. Various other issues were also addressed.

tags | advisory, remote, denial of service, arbitrary, kernel, local
systems | linux, ubuntu
advisories | CVE-2015-4004, CVE-2016-1583, CVE-2016-2069, CVE-2016-2117, CVE-2016-2187, CVE-2016-3672, CVE-2016-3951, CVE-2016-3955, CVE-2016-4485, CVE-2016-4486, CVE-2016-4581
MD5 | ad8f2eb888c621de9740f9f5000a2983
Ubuntu Security Notice USN-2997-1
Posted Jun 10, 2016
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 2997-1 - Jann Horn discovered that eCryptfs improperly attempted to use the mmap() handler of a lower filesystem that did not implement one, causing a recursive page fault to occur. A local unprivileged attacker could use to cause a denial of service (system crash) or possibly execute arbitrary code with administrative privileges. Ralf Spenneberg discovered that the USB sound subsystem in the Linux kernel did not properly validate USB device descriptors. An attacker with physical access could use this to cause a denial of service (system crash). Various other issues were also addressed.

tags | advisory, denial of service, arbitrary, kernel, local
systems | linux, ubuntu
advisories | CVE-2016-1583, CVE-2016-2184, CVE-2016-2185, CVE-2016-2186, CVE-2016-2187, CVE-2016-2188, CVE-2016-3136, CVE-2016-3137, CVE-2016-3138, CVE-2016-3140, CVE-2016-3156, CVE-2016-3157, CVE-2016-3672, CVE-2016-3955, CVE-2016-4485, CVE-2016-4486
MD5 | f8e66d68fc67665af0dd7193889e98b8
Ubuntu Security Notice USN-2996-1
Posted Jun 10, 2016
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 2996-1 - Jann Horn discovered that eCryptfs improperly attempted to use the mmap() handler of a lower filesystem that did not implement one, causing a recursive page fault to occur. A local unprivileged attacker could use to cause a denial of service (system crash) or possibly execute arbitrary code with administrative privileges. Ralf Spenneberg discovered that the USB sound subsystem in the Linux kernel did not properly validate USB device descriptors. An attacker with physical access could use this to cause a denial of service (system crash). Various other issues were also addressed.

tags | advisory, denial of service, arbitrary, kernel, local
systems | linux, ubuntu
advisories | CVE-2016-1583, CVE-2016-2184, CVE-2016-2185, CVE-2016-2186, CVE-2016-2187, CVE-2016-2188, CVE-2016-3136, CVE-2016-3137, CVE-2016-3138, CVE-2016-3140, CVE-2016-3156, CVE-2016-3157, CVE-2016-3672, CVE-2016-3955, CVE-2016-4485, CVE-2016-4486
MD5 | 978c4c90510615efa24eb0289d8b9ca9
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