CVE-2018-18690

medium
New! CVE Severity Now Using CVSS v3

The calculated severity for CVEs has been updated to use CVSS v3 by default. CVEs that do not have a CVSS v3 score will fall back CVSS v2 for calculating severity. Severity display preferences can be toggled in the settings dropdown.

Description

In the Linux kernel before 4.17, a local attacker able to set attributes on an xfs filesystem could make this filesystem non-operational until the next mount by triggering an unchecked error condition during an xfs attribute change, because xfs_attr_shortform_addname in fs/xfs/libxfs/xfs_attr.c mishandles ATTR_REPLACE operations with conversion of an attr from short to long form.

References

http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=7b38460dc8e4eafba06c78f8e37099d3b34d473c

http://www.securityfocus.com/bid/105753

https://bugzilla.kernel.org/show_bug.cgi?id=199119

https://bugzilla.suse.com/show_bug.cgi?id=1105025

https://github.com/torvalds/linux/commit/7b38460dc8e4eafba06c78f8e37099d3b34d473c

https://lists.debian.org/debian-lts-announce/2019/03/msg00017.html

https://lists.debian.org/debian-lts-announce/2019/03/msg00034.html

https://lists.debian.org/debian-lts-announce/2019/04/msg00004.html

https://usn.ubuntu.com/3847-1/

https://usn.ubuntu.com/3847-2/

https://usn.ubuntu.com/3847-3/

https://usn.ubuntu.com/3848-1/

https://usn.ubuntu.com/3848-2/

https://usn.ubuntu.com/3849-1/

https://usn.ubuntu.com/3849-2/

Details

Source: MITRE

Published: 2018-10-26

Updated: 2019-10-03

Type: CWE-754

Risk Information

CVSS v2

Base Score: 4.9

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

Impact Score: 6.9

Exploitability Score: 3.9

Severity: MEDIUM

CVSS v3

Base Score: 5.5

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Impact Score: 3.6

Exploitability Score: 1.8

Severity: MEDIUM

Tenable Plugins

View all (29 total)

IDNameProductFamilySeverity
127281NewStart CGSL CORE 5.04 / MAIN 5.04 : kernel-rt Multiple Vulnerabilities (NS-SA-2019-0074)NessusNewStart CGSL Local Security Checks
critical
127272NewStart CGSL CORE 5.04 / MAIN 5.04 : kernel Multiple Vulnerabilities (NS-SA-2019-0070)NessusNewStart CGSL Local Security Checks
critical
125283SUSE SLES12 Security Update : kernel (SUSE-SU-2019:1289-1) (MDSUM/RIDL) (MFBDS/RIDL/ZombieLoad) (MLPDS/RIDL) (MSBDS/Fallout)NessusSuSE Local Security Checks
high
124833EulerOS Virtualization 3.0.1.0 : kernel (EulerOS-SA-2019-1511)NessusHuawei Local Security Checks
high
124808EulerOS Virtualization for ARM 64 3.0.1.0 : kernel (EulerOS-SA-2019-1484)NessusHuawei Local Security Checks
critical
123909EulerOS Virtualization 2.5.4 : kernel (EulerOS-SA-2019-1223)NessusHuawei Local Security Checks
high
123906EulerOS Virtualization 2.5.3 : kernel (EulerOS-SA-2019-1220)NessusHuawei Local Security Checks
high
123420Debian DLA-1731-2 : linux regression update (Spectre)NessusDebian Local Security Checks
medium
122879Debian DLA-1715-1 : linux-4.9 security update (Spectre)NessusDebian Local Security Checks
high
122343SUSE SLES12 Security Update : kernel (SUSE-SU-2019:0439-1)NessusSuSE Local Security Checks
high
122201EulerOS 2.0 SP5 : kernel (EulerOS-SA-2019-1028)NessusHuawei Local Security Checks
high
122174EulerOS 2.0 SP3 : kernel (EulerOS-SA-2019-1027)NessusHuawei Local Security Checks
medium
121505Slackware 14.2 : Slackware 14.2 kernel (SSA:2019-030-01)NessusSlackware Local Security Checks
high
121208SUSE SLES12 Security Update : kernel (SUSE-SU-2019:0095-1)NessusSuSE Local Security Checks
high
119921EulerOS 2.0 SP2 : kernel (EulerOS-SA-2018-1432)NessusHuawei Local Security Checks
high
119832Ubuntu 14.04 LTS : Linux kernel vulnerabilities (USN-3849-1)NessusUbuntu Local Security Checks
high
119831Ubuntu 14.04 LTS : Linux kernel (Xenial HWE) vulnerabilities (USN-3848-2)NessusUbuntu Local Security Checks
critical
119830Ubuntu 16.04 LTS : Linux kernel vulnerabilities (USN-3848-1)NessusUbuntu Local Security Checks
critical
119829Ubuntu 14.04 LTS : Linux kernel (Azure) vulnerabilities (USN-3847-3)NessusUbuntu Local Security Checks
high
119828Ubuntu 16.04 LTS : Linux kernel (HWE) vulnerabilities (USN-3847-2)NessusUbuntu Local Security Checks
high
119827Ubuntu 18.04 LTS : Linux kernel vulnerabilities (USN-3847-1)NessusUbuntu Local Security Checks
high
119566OracleVM 3.4 : Unbreakable / etc (OVMSA-2018-0286)NessusOracleVM Local Security Checks
high
119534Oracle Linux 6 / 7 : Unbreakable Enterprise kernel (ELSA-2018-4299)NessusOracle Linux Local Security Checks
high
119077openSUSE Security Update : the Linux Kernel (openSUSE-2018-1427)NessusSuSE Local Security Checks
high
118990CentOS 7 : kernel (CESA-2018:3083)NessusCentOS Local Security Checks
high
118882SUSE SLED12 / SLES12 Security Update : kernel (SUSE-SU-2018:3689-1)NessusSuSE Local Security Checks
high
118770Oracle Linux 7 : kernel (ELSA-2018-3083)NessusOracle Linux Local Security Checks
high
118528RHEL 7 : kernel-rt (RHSA-2018:3096)NessusRed Hat Local Security Checks
high
118525RHEL 7 : kernel (RHSA-2018:3083)NessusRed Hat Local Security Checks
high