Debian LTS Advisory ([SECURITY] [DLA 1392-1] linux security update)

Published: 2018-06-03 22:00:00
CVE Author: NIST National Vulnerability Database

CVSS Base Vector:
AV:L/AC:L/Au:N/C:C/I:C/A:C

Solution Type:
Vendor Patch

Detection Type:
Linux Distribution Package

Affected Versions:
linux on Debian Linux

Recommendations:
For Debian 7 'Wheezy', these problems have been fixed in version 3.2.102-1. This version also includes bug fixes from upstream version 3.2.102, including a fix for a regression in the SCTP implementation in version 3.2.101. We recommend that you upgrade your linux Linux Distribution Packages.

Summary:
Several vulnerabilities have been discovered in the Linux kernel that may lead to a denial of service. CVE-2018-1093 Wen Xu reported that a crafted ext4 filesystem image could trigger an out-of-bounds read in the ext4_valid_block_bitmap() function. A local user able to mount arbitrary filesystems could use this for denial of service. CVE-2018-1130 The syzbot software found that the DCCP implementation of sendmsg() does not check the socket state, potentially leading to a null pointer dereference. A local user could use this to cause a denial of service (crash). CVE-2018-8897 Nick Peterson of Everdox Tech LLC discovered that #DB exceptions that are deferred by MOV SS or POP SS are not properly handled, allowing an unprivileged user to crash the kernel and cause a denial of service. CVE-2018-10940 Dan Carpenter reported that the cdrom driver does not correctly validate the parameter to the CDROM_MEDIA_CHANGED ioctl. A user with access to a cdrom device could use this to cause a denial of service (crash).

Detection Method:
This check tests the installed software version using the apt Linux Distribution Package manager.

NIST (National Institute of Standards and Technology) NVD (National Vulnerability Database)

https://nvd.nist.gov/vuln/detail/CVE-2018-1093
https://nvd.nist.gov/vuln/detail/CVE-2018-10940
https://nvd.nist.gov/vuln/detail/CVE-2018-1130
https://nvd.nist.gov/vuln/detail/CVE-2018-8897

References:

https://lists.debian.org/debian-lts-announce/2018/06/msg00000.html

Severity
High
CVSS Score
7.2
Published
2018-06-03
Modified
2019-03-18
Category
Debian Local Security Checks

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