CVE-2018-1000199: Buffer Overflow
First published: Tue Apr 17 2018(Updated: )
An address corruption flaw was discovered in the Linux kernel built with hardware breakpoint (CONFIG_HAVE_HW_BREAKPOINT) support. While modifying a h/w breakpoint via 'modify_user_hw_breakpoint' routine, an unprivileged user/process could use this flaw to crash the system kernel resulting in DoS OR to potentially escalate privileges on a the system.
Credit: cve@mitre.org cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| redhat/kernel-rt | <0:3.10.0-862.2.3.rt56.806.el7 | 0:3.10.0-862.2.3.rt56.806.el7 |
| redhat/kernel | <0:3.10.0-862.2.3.el7 | 0:3.10.0-862.2.3.el7 |
| redhat/kernel-alt | <0:4.14.0-49.2.2.el7a | 0:4.14.0-49.2.2.el7a |
| redhat/kernel | <0:3.10.0-327.66.3.el7 | 0:3.10.0-327.66.3.el7 |
| redhat/kernel | <0:3.10.0-514.48.3.el7 | 0:3.10.0-514.48.3.el7 |
| redhat/kernel | <0:3.10.0-693.25.4.el7 | 0:3.10.0-693.25.4.el7 |
| redhat/kernel-rt | <1:3.10.0-693.25.4.rt56.613.el6 | 1:3.10.0-693.25.4.rt56.613.el6 |
| Debian Debian Linux | =7.0 | |
| Debian Debian Linux | =8.0 | |
| Debian Debian Linux | =9.0 | |
| Linux Linux kernel | =3.18 | |
| Canonical Ubuntu Linux | =12.04 | |
| Canonical Ubuntu Linux | =14.04 | |
| Canonical Ubuntu Linux | =16.04 | |
| Canonical Ubuntu Linux | =17.10 | |
| Redhat Enterprise Linux | =7.0 | |
| Redhat Enterprise Linux | =7.2 | |
| Redhat Enterprise Linux | =7.3 | |
| Redhat Enterprise Linux | =7.4 | |
| Redhat Enterprise Linux | =7.5 | |
| Redhat Enterprise Linux Desktop | =7.0 | |
| Redhat Enterprise Linux Server | =7.0 | |
| Redhat Enterprise Linux Server Aus | =7.2 | |
| Redhat Enterprise Linux Server Aus | =7.3 | |
| Redhat Enterprise Linux Server Aus | =7.4 | |
| Redhat Enterprise Linux Server Eus | =7.3 | |
| Redhat Enterprise Linux Server Eus | =7.4 | |
| Redhat Enterprise Linux Server Eus | =7.5 | |
| Redhat Enterprise Linux Server Tus | =7.2 | |
| Redhat Enterprise Linux Workstation | =7.0 | |
| debian/linux | 5.10.223-1 6.1.106-3 6.1.99-1 6.10.9-1 |
Remedy
To mitigate this issue: 1) Save the following script in a 'CVE-2018-1000199.stp' file. --- probe kernel.function("ptrace_set_debugreg") { if ($n < 4) $n = 4; /* set invalid debug register #, returns -EIO */ } probe begin { printk(0, "CVE-2018-1000199 mitigation loaded") } probe end { printk(0, "CVE-2018-1000199 mitigation unloaded") } --- 2) Install systemtap package and its dependencies # yum install -y systemtap systemtap-runtime # yum install -y kernel-devel kernel-debuginfo kernel-debuginfo-common 3) Build the mitigation kernel module as root. # stap -r `uname -r` -m cve_2018_1000199.ko -g CVE-2018-1000199.stp -p4 4) Load the mitigation module as root # staprun -L cve_2018_1000199.ko
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Reference Links
- https://www.cve.org/CVERecord?id=CVE-2018-1000199 https://nvd.nist.gov/vuln/detail/CVE-2018-1000199
- https://bugzilla.redhat.com/show_bug.cgi?id=1568477
- https://access.redhat.com/errata/RHSA-2018:1355
- https://access.redhat.com/errata/RHSA-2018:1318
- https://access.redhat.com/errata/RHSA-2018:1374
- https://access.redhat.com/errata/RHSA-2018:1347
- https://access.redhat.com/errata/RHSA-2018:1348
- https://access.redhat.com/errata/RHSA-2018:1345
- https://access.redhat.com/errata/RHSA-2018:1354
- https://access.redhat.com/security/cve/CVE-2018-1000199
- http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00022.html
- http://www.securitytracker.com/id/1040806
- https://lists.debian.org/debian-lts-announce/2018/05/msg00000.html
- https://lkml.org/lkml/2018/4/6/813
- https://usn.ubuntu.com/3641-1/
- https://usn.ubuntu.com/3641-2/
- https://www.debian.org/security/2018/dsa-4187
- https://www.debian.org/security/2018/dsa-4188
- https://launchpad.net/bugs/cve/CVE-2018-1000199
- https://git.kernel.org/linus/f67b15037a7a50c57f72e69a6d59941ad90a0f0f
- https://git.kernel.org/linus/18ff57b220610a699947f20b156a8245ca7eee98
- https://git.kernel.org/linus/705feaf321c37e4dca3637fd5cb3b275f17a06c9
- http://www.openwall.com/lists/oss-security/2018/05/01/3
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1568477#c18
- https://access.redhat.com/
- https://security-tracker.debian.org/tracker/CVE-2018-1000199
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-1000199
- https://nvd.nist.gov/vuln/detail/CVE-2018-1000199
- https://ubuntu.com/security/CVE-2018-1000199
Parent vulnerabilities
(Appears in the following advisories)
- collector/redhat-cve
- collector/nvd-index
- agent/type
- agent/first-publish-date
- collector/launchpad-cve
- source/Launchpad
- collector/redhat-bugzilla
- source/Red Hat
- alias/CVE-2018-1000199
- agent/author
- agent/remedy
- agent/weakness
- agent/severity
- agent/description
- collector/nvd-cve
- source/NVD
- agent/software-canonical-lookup
- agent/references
- collector/mitre-cve
- source/MITRE
- agent/last-modified-date
- agent/tags
- agent/event
- collector/security-tracker-debian
- source/Debian
- agent/softwarecombine
- collector/usn-cve
- source/Ubuntu
- package-manager/redhat
- vendor/debian
- canonical/debian debian linux
- version/debian debian linux/7.0
- version/debian debian linux/8.0
- version/debian debian linux/9.0
- vendor/linux
- canonical/linux linux kernel
- version/linux linux kernel/3.18
- vendor/canonical
- canonical/canonical ubuntu linux
- version/canonical ubuntu linux/12.04
- version/canonical ubuntu linux/14.04
- version/canonical ubuntu linux/16.04
- version/canonical ubuntu linux/17.10
- vendor/redhat
- canonical/redhat enterprise linux
- version/redhat enterprise linux/7.0
- version/redhat enterprise linux/7.2
- version/redhat enterprise linux/7.3
- version/redhat enterprise linux/7.4
- version/redhat enterprise linux/7.5
- canonical/redhat enterprise linux desktop
- version/redhat enterprise linux desktop/7.0
- canonical/redhat enterprise linux server
- version/redhat enterprise linux server/7.0
- canonical/redhat enterprise linux server aus
- version/redhat enterprise linux server aus/7.2
- version/redhat enterprise linux server aus/7.3
- version/redhat enterprise linux server aus/7.4
- canonical/redhat enterprise linux server eus
- version/redhat enterprise linux server eus/7.3
- version/redhat enterprise linux server eus/7.4
- version/redhat enterprise linux server eus/7.5
- canonical/redhat enterprise linux server tus
- version/redhat enterprise linux server tus/7.2
- canonical/redhat enterprise linux workstation
- version/redhat enterprise linux workstation/7.0
- package-manager/debian