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CVE-2018-11412

Status Candidate

Overview

In the Linux kernel 4.13 through 4.16.11, ext4_read_inline_data() in fs/ext4/inline.c performs a memcpy with an untrusted length value in certain circumstances involving a crafted filesystem that stores the system.data extended attribute value in a dedicated inode.

Related Files

Kernel Live Patch Security Notice LSN-0043-1
Posted Sep 11, 2018
Authored by Benjamin M. Romer

Piotr Gabriel Kosinski and Daniel Shapira discovered a stack-based buffer overflow in the CDROM driver implementation of the Linux kernel. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. Jann Horn discovered that the ext4 filesystem implementation in the Linux kernel did not properly keep xattr information consistent in some situations. An attacker could use this to construct a malicious ext4 image that, when mounted, could cause a denial of service (system crash) or possibly execute arbitrary code. Various other issues have also been addressed.

tags | advisory, denial of service, overflow, arbitrary, kernel, local
systems | linux
advisories | CVE-2018-11412, CVE-2018-11506, CVE-2018-12233, CVE-2018-13405, CVE-2018-13406
MD5 | 15d9cf4ac6ec9024e548bcb059849043
Ubuntu Security Notice USN-3752-3
Posted Aug 29, 2018
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3752-3 - It was discovered that, when attempting to handle an out-of-memory situation, a null pointer dereference could be triggered in the Linux kernel in some circumstances. A local attacker could use this to cause a denial of service. Wen Xu discovered that the XFS filesystem implementation in the Linux kernel did not properly validate meta-data information. An attacker could use this to construct a malicious xfs image that, when mounted, could cause a denial of service. Various other issues were also addressed.

tags | advisory, denial of service, kernel, local
systems | linux, ubuntu
advisories | CVE-2018-1000200, CVE-2018-1000204, CVE-2018-10323, CVE-2018-10840, CVE-2018-10881, CVE-2018-1093, CVE-2018-1108, CVE-2018-1120, CVE-2018-11412, CVE-2018-11506, CVE-2018-12232, CVE-2018-12233, CVE-2018-12904, CVE-2018-13094, CVE-2018-13405, CVE-2018-13406, CVE-2018-5814, CVE-2018-9415
MD5 | 20c040051bfb9ac9dcc779b4d308caef
Ubuntu Security Notice USN-3752-2
Posted Aug 24, 2018
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3752-2 - USN-3752-1 fixed vulnerabilities in the Linux kernel for Ubuntu 18.04 LTS. This update provides the corresponding updates for the Linux Hardware Enablement kernel from Ubuntu 18.04 LTS for Ubuntu 16.04 LTS. It was discovered that, when attempting to handle an out-of-memory situation, a null pointer dereference could be triggered in the Linux kernel in some circumstances. A local attacker could use this to cause a denial of service. Various other issues were also addressed.

tags | advisory, denial of service, kernel, local, vulnerability
systems | linux, ubuntu
advisories | CVE-2018-1000200, CVE-2018-1000204, CVE-2018-10323, CVE-2018-10840, CVE-2018-10881, CVE-2018-1093, CVE-2018-1108, CVE-2018-1120, CVE-2018-11412, CVE-2018-11506, CVE-2018-12232, CVE-2018-12233, CVE-2018-12904, CVE-2018-13094, CVE-2018-13405, CVE-2018-13406, CVE-2018-5814, CVE-2018-9415
MD5 | 91c44e956ab995ed6b9251ca5ef384c1
Ubuntu Security Notice USN-3752-1
Posted Aug 24, 2018
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3752-1 - It was discovered that, when attempting to handle an out-of-memory situation, a null pointer dereference could be triggered in the Linux kernel in some circumstances. A local attacker could use this to cause a denial of service. Wen Xu discovered that the XFS filesystem implementation in the Linux kernel did not properly validate meta-data information. An attacker could use this to construct a malicious xfs image that, when mounted, could cause a denial of service. Various other issues were also addressed.

tags | advisory, denial of service, kernel, local
systems | linux, ubuntu
advisories | CVE-2018-1000200, CVE-2018-1000204, CVE-2018-10323, CVE-2018-10840, CVE-2018-10881, CVE-2018-1093, CVE-2018-1108, CVE-2018-1120, CVE-2018-11412, CVE-2018-11506, CVE-2018-12232, CVE-2018-12233, CVE-2018-12904, CVE-2018-13094, CVE-2018-13405, CVE-2018-13406, CVE-2018-5814, CVE-2018-9415
MD5 | 87777064ee88c75fe68909aa01bf4c16
Linux Kernel ext4_read_inline_data() Memory Corruption
Posted Jun 5, 2018
Authored by Google Security Research

Linux Kernel versions prior to 4.16.11 suffer from an ext4_read_inline_data() memory corruption vulnerability.

tags | exploit, kernel
systems | linux
advisories | CVE-2018-11412
MD5 | ef90cc76075cfbbd5c9ca92c6da53beb
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