CVEdetails.com the ultimate security vulnerability data source
(e.g.: CVE-2009-1234 or 2010-1234 or 20101234)
Log In   Register
  What's the CVSS score of your company?
Vulnerability Feeds & WidgetsNew   www.itsecdb.com  

Vulnerability Details : CVE-2018-8897

A statement in the System Programming Guide of the Intel 64 and IA-32 Architectures Software Developer's Manual (SDM) was mishandled in the development of some or all operating-system kernels, resulting in unexpected behavior for #DB exceptions that are deferred by MOV SS or POP SS, as demonstrated by (for example) privilege escalation in Windows, macOS, some Xen configurations, or FreeBSD, or a Linux kernel crash. The MOV to SS and POP SS instructions inhibit interrupts (including NMIs), data breakpoints, and single step trap exceptions until the instruction boundary following the next instruction (SDM Vol. 3A; section 6.8.3). (The inhibited data breakpoints are those on memory accessed by the MOV to SS or POP to SS instruction itself.) Note that debug exceptions are not inhibited by the interrupt enable (EFLAGS.IF) system flag (SDM Vol. 3A; section 2.3). If the instruction following the MOV to SS or POP to SS instruction is an instruction like SYSCALL, SYSENTER, INT 3, etc. that transfers control to the operating system at CPL < 3, the debug exception is delivered after the transfer to CPL < 3 is complete. OS kernels may not expect this order of events and may therefore experience unexpected behavior when it occurs.
Publish Date : 2018-05-08 Last Update Date : 2019-10-03
Search Twitter   Search YouTube   Search Google

- CVSS Scores & Vulnerability Types

CVSS Score
7.2
Confidentiality Impact Complete (There is total information disclosure, resulting in all system files being revealed.)
Integrity Impact Complete (There is a total compromise of system integrity. There is a complete loss of system protection, resulting in the entire system being compromised.)
Availability Impact Complete (There is a total shutdown of the affected resource. The attacker can render the resource completely unavailable.)
Access Complexity Low (Specialized access conditions or extenuating circumstances do not exist. Very little knowledge or skill is required to exploit. )
Authentication Not required (Authentication is not required to exploit the vulnerability.)
Gained Access None
Vulnerability Type(s)
CWE ID 362

- Related OVAL Definitions

Title Definition Id Class Family
RHSA-2018:1318: kernel security, bug fix, and enhancement update (Important) oval:com.redhat.rhsa:def:20181318 unix
RHSA-2018:1319: kernel security and bug fix update (Important) oval:com.redhat.rhsa:def:20181319 unix
RHSA-2018:1345: kernel security update (Important) oval:com.redhat.rhsa:def:20181345 unix
RHSA-2018:1353: kernel security update (Moderate) oval:com.redhat.rhsa:def:20181353 unix
RHSA-2018:1355: kernel-rt security and bug fix update (Important) oval:com.redhat.rhsa:def:20181355 unix
OVAL (Open Vulnerability and Assessment Language) definitions define exactly what should be done to verify a vulnerability or a missing patch. Check out the OVAL definitions if you want to learn what you should do to verify a vulnerability.

- Products Affected By CVE-2018-8897

# Product Type Vendor Product Version Update Edition Language
1 OS Apple Mac Os X * * * * Version Details Vulnerabilities
2 OS Canonical Ubuntu Linux 14.04 * * * Version Details Vulnerabilities
3 OS Canonical Ubuntu Linux 16.04 * * * Version Details Vulnerabilities
4 OS Canonical Ubuntu Linux 17.10 * * * Version Details Vulnerabilities
5 Application Citrix Xenserver 6.0.2 * * * Version Details Vulnerabilities
6 Application Citrix Xenserver 6.2.0 * * * Version Details Vulnerabilities
7 Application Citrix Xenserver 6.5 * * * Version Details Vulnerabilities
8 Application Citrix Xenserver 7.0 * * * Version Details Vulnerabilities
9 Application Citrix Xenserver 7.1 * * * Version Details Vulnerabilities
10 Application Citrix Xenserver 7.2 * * * Version Details Vulnerabilities
11 Application Citrix Xenserver 7.3 * * * Version Details Vulnerabilities
12 Application Citrix Xenserver 7.4 * * * Version Details Vulnerabilities
13 OS Debian Debian Linux 7.0 * * * Version Details Vulnerabilities
14 OS Debian Debian Linux 8.0 * * * Version Details Vulnerabilities
15 OS Debian Debian Linux 9.0 * * * Version Details Vulnerabilities
16 OS Freebsd Freebsd * * * * Version Details Vulnerabilities
17 OS Redhat Enterprise Linux Server 7.0 * * * Version Details Vulnerabilities
18 OS Redhat Enterprise Linux Workstation 7.0 * * * Version Details Vulnerabilities
19 OS Redhat Enterprise Virtualization Manager 3.0 * * * Version Details Vulnerabilities
20 OS Synology Diskstation Manager 5.2 * * * Version Details Vulnerabilities
21 OS Synology Diskstation Manager 6.0 * * * Version Details Vulnerabilities
22 OS Synology Diskstation Manager 6.1 * * * Version Details Vulnerabilities
23 Application Synology Skynas - * * * Version Details Vulnerabilities
24 OS XEN XEN - * * * Version Details Vulnerabilities

- Number Of Affected Versions By Product

Vendor Product Vulnerable Versions
Apple Mac Os X 1
Canonical Ubuntu Linux 3
Citrix Xenserver 8
Debian Debian Linux 3
Freebsd Freebsd 1
Redhat Enterprise Linux Server 1
Redhat Enterprise Linux Workstation 1
Redhat Enterprise Virtualization Manager 1
Synology Diskstation Manager 3
Synology Skynas 1
XEN XEN 1

- References For CVE-2018-8897

https://access.redhat.com/errata/RHSA-2018:1347
REDHAT RHSA-2018:1347
http://www.huawei.com/en/psirt/security-advisories/huawei-sa-20190921-01-debug-en CONFIRM
https://help.ecostruxureit.com/display/public/UADCE725/Security+fixes+in+StruxureWare+Data+Center+Expert+v7.6.0 CONFIRM
https://access.redhat.com/errata/RHSA-2018:1355
REDHAT RHSA-2018:1355
https://access.redhat.com/errata/RHSA-2018:1354
REDHAT RHSA-2018:1354
https://www.triplefault.io/2018/05/spurious-db-exceptions-with-pop-ss.html
https://lists.debian.org/debian-lts-announce/2018/11/msg00013.html
MLIST [debian-lts-announce] 20181112 [SECURITY] [DLA 1577-1] xen security update
https://security.netapp.com/advisory/ntap-20180927-0002/ CONFIRM
https://www.exploit-db.com/exploits/45024/
EXPLOIT-DB 45024
https://lists.debian.org/debian-lts-announce/2018/06/msg00000.html
MLIST [debian-lts-announce] 20180601 [SECURITY] [DLA 1392-1] linux security update
https://usn.ubuntu.com/3641-1/
UBUNTU USN-3641-1
https://lists.debian.org/debian-lts-announce/2018/05/msg00015.html
MLIST [debian-lts-announce] 20180525 [SECURITY] [DLA 1383-1] xen security update
https://www.exploit-db.com/exploits/44697/
EXPLOIT-DB 44697
https://github.com/can1357/CVE-2018-8897/
https://www.debian.org/security/2018/dsa-4201
DEBIAN DSA-4201
https://support.apple.com/HT208742
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8897 CONFIRM
https://access.redhat.com/errata/RHSA-2018:1524
REDHAT RHSA-2018:1524
http://www.securitytracker.com/id/1040744
SECTRACK 1040744
http://www.securitytracker.com/id/1040882
SECTRACK 1040882
https://www.debian.org/security/2018/dsa-4196
DEBIAN DSA-4196
http://www.securitytracker.com/id/1040849
SECTRACK 1040849
http://www.securityfocus.com/bid/104071
BID 104071 Microsoft Windows Kernel CVE-2018-8897 Local Privilege Escalation Vulnerability Release Date:2018-05-17
https://access.redhat.com/errata/RHSA-2018:1318
REDHAT RHSA-2018:1318
https://access.redhat.com/errata/RHSA-2018:1319
REDHAT RHSA-2018:1319
https://access.redhat.com/errata/RHSA-2018:1348
REDHAT RHSA-2018:1348
https://access.redhat.com/errata/RHSA-2018:1346
REDHAT RHSA-2018:1346
https://access.redhat.com/errata/RHSA-2018:1345
REDHAT RHSA-2018:1345
https://svnweb.freebsd.org/base?view=revision&revision=333368
https://access.redhat.com/errata/RHSA-2018:1352
REDHAT RHSA-2018:1352
http://openwall.com/lists/oss-security/2018/05/08/4
https://access.redhat.com/errata/RHSA-2018:1349
REDHAT RHSA-2018:1349
https://access.redhat.com/errata/RHSA-2018:1351
REDHAT RHSA-2018:1351
https://usn.ubuntu.com/3641-2/
UBUNTU USN-3641-2
http://www.securitytracker.com/id/1040866
SECTRACK 1040866
http://openwall.com/lists/oss-security/2018/05/08/1
https://access.redhat.com/errata/RHSA-2018:1353
REDHAT RHSA-2018:1353
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=d8ba61ba58c88d5207c1ba2f7d9a2280e7d03be9
https://patchwork.kernel.org/patch/10386677/
https://support.citrix.com/article/CTX234679 CONFIRM
https://www.synology.com/support/security/Synology_SA_18_21 CONFIRM
https://xenbits.xen.org/xsa/advisory-260.html
https://www.freebsd.org/security/advisories/FreeBSD-SA-18:06.debugreg.asc
https://github.com/torvalds/linux/commit/d8ba61ba58c88d5207c1ba2f7d9a2280e7d03be9
https://bugzilla.redhat.com/show_bug.cgi?id=1567074
https://access.redhat.com/errata/RHSA-2018:1350
REDHAT RHSA-2018:1350
http://www.securitytracker.com/id/1040861
SECTRACK 1040861
https://www.kb.cert.org/vuls/id/631579
CERT-VN VU#631579

- Metasploit Modules Related To CVE-2018-8897

There are not any metasploit modules related to this CVE entry (Please visit www.metasploit.com for more information)


CVE is a registred trademark of the MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. CWE is a registred trademark of the MITRE Corporation and the authoritative source of CWE content is MITRE's CWE web site. OVAL is a registered trademark of The MITRE Corporation and the authoritative source of OVAL content is MITRE's OVAL web site.
Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. It is the responsibility of user to evaluate the accuracy, completeness or usefulness of any information, opinion, advice or other content. EACH USER WILL BE SOLELY RESPONSIBLE FOR ANY consequences of his or her direct or indirect use of this web site. ALL WARRANTIES OF ANY KIND ARE EXPRESSLY DISCLAIMED. This site will NOT BE LIABLE FOR ANY DIRECT, INDIRECT or any other kind of loss.