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CVE-2018-1094

Status Candidate

Overview

The ext4_fill_super function in fs/ext4/super.c in the Linux kernel through 4.15.15 does not always initialize the crc32c checksum driver, which allows attackers to cause a denial of service (ext4_xattr_inode_hash NULL pointer dereference and system crash) via a crafted ext4 image.

Related Files

Red Hat Security Advisory 2018-2948-01
Posted Oct 31, 2018
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2018-2948-01 - The kernel-alt packages provide the Linux kernel version 4.x. Issues addressed include buffer overflow, bypass, denial of service, information leakage, null pointer, and use-after-free vulnerabilities.

tags | advisory, denial of service, overflow, kernel, vulnerability
systems | linux, redhat
advisories | CVE-2017-13166, CVE-2017-16648, CVE-2017-17805, CVE-2017-17806, CVE-2017-18075, CVE-2017-18208, CVE-2017-18344, CVE-2018-1000026, CVE-2018-1000200, CVE-2018-1000204, CVE-2018-10322, CVE-2018-1065, CVE-2018-1068, CVE-2018-10877, CVE-2018-10878, CVE-2018-10879, CVE-2018-10880, CVE-2018-10881, CVE-2018-10882, CVE-2018-10883, CVE-2018-1092, CVE-2018-1094, CVE-2018-10940, CVE-2018-1095, CVE-2018-1118, CVE-2018-1120
SHA-256 | b5ac1428b03d1ab918a3b26b7b8a361284bcfa618164f1b2afd1b27d505a0549
Red Hat Security Advisory 2018-3083-01
Posted Oct 31, 2018
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2018-3083-01 - The kernel packages contain the Linux kernel, the core of any Linux operating system. Issues addressed include buffer overflow, denial of service, information leakage, null pointer, and use-after-free vulnerabilities.

tags | advisory, denial of service, overflow, kernel, vulnerability
systems | linux, redhat
advisories | CVE-2015-8830, CVE-2016-4913, CVE-2017-0861, CVE-2017-10661, CVE-2017-17805, CVE-2017-18208, CVE-2017-18232, CVE-2017-18344, CVE-2018-1000026, CVE-2018-10322, CVE-2018-10878, CVE-2018-10879, CVE-2018-10881, CVE-2018-10883, CVE-2018-10902, CVE-2018-1092, CVE-2018-1094, CVE-2018-10940, CVE-2018-1118, CVE-2018-1120, CVE-2018-1130, CVE-2018-13405, CVE-2018-5344, CVE-2018-5391, CVE-2018-5803, CVE-2018-5848, CVE-2018-7740
SHA-256 | 51bb55b468c741de6d34c15b15988a77197b07fcb781827141ad9999e1700fdc
Red Hat Security Advisory 2018-3096-01
Posted Oct 31, 2018
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2018-3096-01 - The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements. Issues addressed include buffer overflow, denial of service, information leakage, null pointer, and use-after-free vulnerabilities.

tags | advisory, denial of service, overflow, kernel, vulnerability
systems | linux, redhat
advisories | CVE-2015-8830, CVE-2016-4913, CVE-2017-0861, CVE-2017-10661, CVE-2017-17805, CVE-2017-18208, CVE-2017-18232, CVE-2017-18344, CVE-2018-1000026, CVE-2018-10322, CVE-2018-10878, CVE-2018-10879, CVE-2018-10881, CVE-2018-10883, CVE-2018-10902, CVE-2018-1092, CVE-2018-1094, CVE-2018-10940, CVE-2018-1118, CVE-2018-1120, CVE-2018-1130, CVE-2018-13405, CVE-2018-5344, CVE-2018-5391, CVE-2018-5803, CVE-2018-5848, CVE-2018-7740
SHA-256 | 7f59a96ea0227aec7452145ed2d1a67c0ed1e187e5b7fdd0814bef1fa260bd64
Kernel Live Patch Security Notice LSN-0041-1
Posted Aug 10, 2018
Authored by Benjamin M. Romer

The sr_do_ioctl function in drivers/scsi/sr_ioctl.c in the Linux kernel through 4.16.12 allows local users to cause a denial of service (stack-based buffer overflow) or possibly have unspecified other impact because sense buffers have different sizes at the CDROM layer and the SCSI layer, as demonstrated by a CDROMREADMODE2 ioctl call. Wen Xu discovered that the ext4 file system implementation in the Linux kernel did not properly initialize the crc32c checksum driver. A local attacker could use this to cause a denial of service (system crash). Various other issues were also addressed.

tags | advisory, denial of service, overflow, kernel, local
systems | linux
advisories | CVE-2018-1094, CVE-2018-11506, CVE-2018-13094, CVE-2018-13405, CVE-2018-5390
SHA-256 | 6d29a3871da9b808e2bd7ade9a1b925586a3080e72b541f756696fbbcbc48d00
Ubuntu Security Notice USN-3718-2
Posted Jul 23, 2018
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3718-2 - USN-3695-2 fixed vulnerabilities in the Linux Hardware Enablement Kernel kernel for Ubuntu 16.04 LTS. Unfortunately, the fix for CVE-2018-1108 introduced a regression where insufficient early entropy prevented services from starting, leading in some situations to a failure to boot, This update addresses the issue. Various other issues were also addressed.

tags | advisory, kernel, vulnerability
systems | linux, ubuntu
advisories | CVE-2018-1094, CVE-2018-10940, CVE-2018-1095, CVE-2018-1108, CVE-2018-11508, CVE-2018-7755
SHA-256 | 7352a11c02a1bd3ca1dde166137417760b084a8e80b91bc68a912cda66fc39c8
Ubuntu Security Notice USN-3718-1
Posted Jul 23, 2018
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3718-1 - USN-3695-1 fixed vulnerabilities in the Linux kernel for Ubuntu 18.04 LTS. Unfortunately, the fix for CVE-2018-1108 introduced a regression where insufficient early entropy prevented services from starting, leading in some situations to a failure to boot, This update addresses the issue. Various other issues were also addressed.

tags | advisory, kernel, vulnerability
systems | linux, ubuntu
advisories | CVE-2018-1094, CVE-2018-10940, CVE-2018-1095, CVE-2018-1108, CVE-2018-11508, CVE-2018-7755
SHA-256 | 8b5aff682a7fe0dc91801054a3fa777ee05cd873429b047eb282b97fc691e598
Ubuntu Security Notice USN-3695-1
Posted Jul 2, 2018
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3695-1 - Wen Xu discovered that the ext4 file system implementation in the Linux kernel did not properly initialize the crc32c checksum driver. A local attacker could use this to cause a denial of service. It was discovered that the cdrom driver in the Linux kernel contained an incorrect bounds check. A local attacker could use this to expose sensitive information. Various other issues were also addressed.

tags | advisory, denial of service, kernel, local
systems | linux, ubuntu
advisories | CVE-2018-1094, CVE-2018-10940, CVE-2018-1095, CVE-2018-11508, CVE-2018-7755
SHA-256 | 8027dac45fca8f547843ef43e09760d5bbb95bb1ee7469c2947cce1a51b7622f
Ubuntu Security Notice USN-3695-2
Posted Jul 2, 2018
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3695-2 - USN-3695-1 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. Wen Xu discovered that the ext4 file system implementation in the Linux kernel did not properly initialize the crc32c checksum driver. 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-2018-1094, CVE-2018-10940, CVE-2018-1095, CVE-2018-11508, CVE-2018-7755
SHA-256 | 702548617b260a8caa37ca81a615acaf101fb1759be6eb65f217617fd0740351
Ubuntu Security Notice USN-3676-2
Posted Jun 12, 2018
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3676-2 - USN-3676-1 fixed vulnerabilities in the Linux kernel for Ubuntu 16.04 LTS. This update provides the corresponding updates for the Linux Hardware Enablement kernel from Ubuntu 16.04 LTS for Ubuntu 14.04 LTS. Wen Xu discovered that the ext4 filesystem implementation in the Linux kernel did not properly handle corrupted meta data in some situations. An attacker could use this to specially craft an ext4 file system that caused a denial of service when mounted. Various other issues were also addressed.

tags | advisory, denial of service, kernel, vulnerability
systems | linux, ubuntu
advisories | CVE-2018-1092, CVE-2018-1093, CVE-2018-10940, CVE-2018-8087
SHA-256 | b4830110117fbba4ebcb3aed886d7a8ee5e4bde656c36861c7100ec0c951e607
Ubuntu Security Notice USN-3676-1
Posted Jun 12, 2018
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3676-1 - Wen Xu discovered that the ext4 filesystem implementation in the Linux kernel did not properly handle corrupted meta data in some situations. An attacker could use this to specially craft an ext4 file system that caused a denial of service when mounted. It was discovered that the cdrom driver in the Linux kernel contained an incorrect bounds check. A local attacker could use this to expose sensitive information. Various other issues were also addressed.

tags | advisory, denial of service, kernel, local
systems | linux, ubuntu
advisories | CVE-2018-1092, CVE-2018-1093, CVE-2018-10940, CVE-2018-8087
SHA-256 | 9eb8e7aa9a0d4aa6ddced7f3c8e17089dc358de41a491f619dde8e9fa99a51e9
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