PT-2018-1241 · Linux+5 · Linux Kernel+5

Wen Xu

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Publicado

2018-03-29

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Atualizado

2023-02-13

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CVE-2018-1094

CVSS v2.0

7.1

Alta

VetorAV:N/AC:M/Au:N/C:N/I:N/A:C
Name of the Vulnerable Software and Affected Versions Linux kernel versions through 4.15.15
Description The issue is related to the ext4 fill super function in the Linux kernel, which does not always initialize the crc32c checksum driver. This allows attackers to cause a denial of service via a crafted ext4 image, resulting in a system crash due to a NULL pointer dereference in ext4 xattr inode hash.
Recommendations For Linux kernel versions through 4.15.15, update to a version that initializes the crc32c checksum driver properly to prevent the denial of service. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

DoS

NULL Pointer Dereference

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Enumeração de Fraquezas

CWE-476

Identificadores relacionados

ALT-PU-2018-1557
ALT-PU-2018-1621
ALT-PU-2019-1433
BDU:2018-00714
CESA-2018_3083
CVE-2018-1094
MGASA-2018-0249
MGASA-2018-0264
MGASA-2018-0265
OPENSUSE-SU-2018_1773-1
OPENSUSE-SU-2018_2119-1
RHSA-2018:2948
RHSA-2018:3083
RHSA-2018:3096
RHSA-2018_3083
RHSA-2018_3096
SUSE-SU-2018:1761-1
SUSE-SU-2018:1762-1
SUSE-SU-2018:1816-1
SUSE-SU-2018:1855-1
SUSE-SU-2018:1855-2
SUSE-SU-2018:2092-1
USN-3695-1
USN-3695-2

Produtos afetados

Alt Linux
Centos
Linux Kernel
Red Hat
Suse
Ubuntu