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Debian LTS Advisory ([SECURITY] [DLA 1392-1] linux security update)
Information
Severity
Severity
Family
Family
CVSSv2 Base
CVSSv2 Base
CVSSv2 Vector
CVSSv2 Vector
Solution Type
Solution Type
Created
Created
Modified
Modified
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).
Affected Software
Affected Software
linux on Debian Linux
Detection Method
Detection Method
This check tests the installed software version using the apt package manager.
Solution
Solution
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 packages.