CVE-2018-8897 (GCVE-0-2018-8897)
Vulnerability from cvelistv5
Published
2018-05-08 18:00
Modified
2024-08-05 07:10
Severity ?
CWE
  • n/a
Summary
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.
References
cve@mitre.org http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=d8ba61ba58c88d5207c1ba2f7d9a2280e7d03be9 Patch, Third Party Advisory
cve@mitre.org http://openwall.com/lists/oss-security/2018/05/08/1 Mailing List, Third Party Advisory
cve@mitre.org http://openwall.com/lists/oss-security/2018/05/08/4 Mailing List, Third Party Advisory
cve@mitre.org http://www.huawei.com/en/psirt/security-advisories/huawei-sa-20190921-01-debug-en
cve@mitre.org http://www.securityfocus.com/bid/104071 Third Party Advisory, VDB Entry
cve@mitre.org http://www.securitytracker.com/id/1040744 Third Party Advisory, VDB Entry
cve@mitre.org http://www.securitytracker.com/id/1040849 Third Party Advisory, VDB Entry
cve@mitre.org http://www.securitytracker.com/id/1040861 Third Party Advisory, VDB Entry
cve@mitre.org http://www.securitytracker.com/id/1040866 Third Party Advisory, VDB Entry
cve@mitre.org http://www.securitytracker.com/id/1040882 Third Party Advisory, VDB Entry
cve@mitre.org https://access.redhat.com/errata/RHSA-2018:1318 Third Party Advisory
cve@mitre.org https://access.redhat.com/errata/RHSA-2018:1319 Third Party Advisory
cve@mitre.org https://access.redhat.com/errata/RHSA-2018:1345 Third Party Advisory
cve@mitre.org https://access.redhat.com/errata/RHSA-2018:1346 Third Party Advisory
cve@mitre.org https://access.redhat.com/errata/RHSA-2018:1347 Third Party Advisory
cve@mitre.org https://access.redhat.com/errata/RHSA-2018:1348 Third Party Advisory
cve@mitre.org https://access.redhat.com/errata/RHSA-2018:1349 Third Party Advisory
cve@mitre.org https://access.redhat.com/errata/RHSA-2018:1350 Third Party Advisory
cve@mitre.org https://access.redhat.com/errata/RHSA-2018:1351 Third Party Advisory
cve@mitre.org https://access.redhat.com/errata/RHSA-2018:1352 Third Party Advisory
cve@mitre.org https://access.redhat.com/errata/RHSA-2018:1353 Third Party Advisory
cve@mitre.org https://access.redhat.com/errata/RHSA-2018:1354 Third Party Advisory
cve@mitre.org https://access.redhat.com/errata/RHSA-2018:1355 Third Party Advisory
cve@mitre.org https://access.redhat.com/errata/RHSA-2018:1524 Third Party Advisory
cve@mitre.org https://bugzilla.redhat.com/show_bug.cgi?id=1567074 Issue Tracking, Third Party Advisory
cve@mitre.org https://github.com/can1357/CVE-2018-8897/ Exploit, Third Party Advisory
cve@mitre.org https://github.com/torvalds/linux/commit/d8ba61ba58c88d5207c1ba2f7d9a2280e7d03be9 Patch, Third Party Advisory
cve@mitre.org https://help.ecostruxureit.com/display/public/UADCE725/Security+fixes+in+StruxureWare+Data+Center+Expert+v7.6.0
cve@mitre.org https://lists.debian.org/debian-lts-announce/2018/05/msg00015.html Third Party Advisory
cve@mitre.org https://lists.debian.org/debian-lts-announce/2018/06/msg00000.html Third Party Advisory
cve@mitre.org https://lists.debian.org/debian-lts-announce/2018/11/msg00013.html
cve@mitre.org https://patchwork.kernel.org/patch/10386677/ Patch, Third Party Advisory
cve@mitre.org https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8897 Patch, Third Party Advisory, Vendor Advisory
cve@mitre.org https://security.netapp.com/advisory/ntap-20180927-0002/
cve@mitre.org https://support.apple.com/HT208742 Third Party Advisory
cve@mitre.org https://support.citrix.com/article/CTX234679 Third Party Advisory
cve@mitre.org https://svnweb.freebsd.org/base?view=revision&revision=333368 Third Party Advisory
cve@mitre.org https://usn.ubuntu.com/3641-1/ Third Party Advisory
cve@mitre.org https://usn.ubuntu.com/3641-2/ Third Party Advisory
cve@mitre.org https://www.debian.org/security/2018/dsa-4196 Third Party Advisory
cve@mitre.org https://www.debian.org/security/2018/dsa-4201 Third Party Advisory
cve@mitre.org https://www.exploit-db.com/exploits/44697/ Exploit, Third Party Advisory, VDB Entry
cve@mitre.org https://www.exploit-db.com/exploits/45024/
cve@mitre.org https://www.freebsd.org/security/advisories/FreeBSD-SA-18:06.debugreg.asc Third Party Advisory
cve@mitre.org https://www.kb.cert.org/vuls/id/631579
cve@mitre.org https://www.synology.com/support/security/Synology_SA_18_21 Third Party Advisory
cve@mitre.org https://www.triplefault.io/2018/05/spurious-db-exceptions-with-pop-ss.html Third Party Advisory
cve@mitre.org https://xenbits.xen.org/xsa/advisory-260.html Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=d8ba61ba58c88d5207c1ba2f7d9a2280e7d03be9 Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 http://openwall.com/lists/oss-security/2018/05/08/1 Mailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 http://openwall.com/lists/oss-security/2018/05/08/4 Mailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 http://www.huawei.com/en/psirt/security-advisories/huawei-sa-20190921-01-debug-en
af854a3a-2127-422b-91ae-364da2661108 http://www.securityfocus.com/bid/104071 Third Party Advisory, VDB Entry
af854a3a-2127-422b-91ae-364da2661108 http://www.securitytracker.com/id/1040744 Third Party Advisory, VDB Entry
af854a3a-2127-422b-91ae-364da2661108 http://www.securitytracker.com/id/1040849 Third Party Advisory, VDB Entry
af854a3a-2127-422b-91ae-364da2661108 http://www.securitytracker.com/id/1040861 Third Party Advisory, VDB Entry
af854a3a-2127-422b-91ae-364da2661108 http://www.securitytracker.com/id/1040866 Third Party Advisory, VDB Entry
af854a3a-2127-422b-91ae-364da2661108 http://www.securitytracker.com/id/1040882 Third Party Advisory, VDB Entry
af854a3a-2127-422b-91ae-364da2661108 https://access.redhat.com/errata/RHSA-2018:1318 Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 https://access.redhat.com/errata/RHSA-2018:1319 Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 https://access.redhat.com/errata/RHSA-2018:1345 Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 https://access.redhat.com/errata/RHSA-2018:1346 Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 https://access.redhat.com/errata/RHSA-2018:1347 Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 https://access.redhat.com/errata/RHSA-2018:1348 Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 https://access.redhat.com/errata/RHSA-2018:1349 Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 https://access.redhat.com/errata/RHSA-2018:1350 Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 https://access.redhat.com/errata/RHSA-2018:1351 Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 https://access.redhat.com/errata/RHSA-2018:1352 Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 https://access.redhat.com/errata/RHSA-2018:1353 Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 https://access.redhat.com/errata/RHSA-2018:1354 Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 https://access.redhat.com/errata/RHSA-2018:1355 Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 https://access.redhat.com/errata/RHSA-2018:1524 Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 https://bugzilla.redhat.com/show_bug.cgi?id=1567074 Issue Tracking, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 https://github.com/can1357/CVE-2018-8897/ Exploit, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 https://github.com/torvalds/linux/commit/d8ba61ba58c88d5207c1ba2f7d9a2280e7d03be9 Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 https://help.ecostruxureit.com/display/public/UADCE725/Security+fixes+in+StruxureWare+Data+Center+Expert+v7.6.0
af854a3a-2127-422b-91ae-364da2661108 https://lists.debian.org/debian-lts-announce/2018/05/msg00015.html Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 https://lists.debian.org/debian-lts-announce/2018/06/msg00000.html Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 https://lists.debian.org/debian-lts-announce/2018/11/msg00013.html
af854a3a-2127-422b-91ae-364da2661108 https://patchwork.kernel.org/patch/10386677/ Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8897 Patch, Third Party Advisory, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108 https://security.netapp.com/advisory/ntap-20180927-0002/
af854a3a-2127-422b-91ae-364da2661108 https://support.apple.com/HT208742 Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 https://support.citrix.com/article/CTX234679 Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 https://svnweb.freebsd.org/base?view=revision&revision=333368 Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 https://usn.ubuntu.com/3641-1/ Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 https://usn.ubuntu.com/3641-2/ Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 https://www.debian.org/security/2018/dsa-4196 Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 https://www.debian.org/security/2018/dsa-4201 Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 https://www.exploit-db.com/exploits/44697/ Exploit, Third Party Advisory, VDB Entry
af854a3a-2127-422b-91ae-364da2661108 https://www.exploit-db.com/exploits/45024/
af854a3a-2127-422b-91ae-364da2661108 https://www.freebsd.org/security/advisories/FreeBSD-SA-18:06.debugreg.asc Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 https://www.kb.cert.org/vuls/id/631579
af854a3a-2127-422b-91ae-364da2661108 https://www.synology.com/support/security/Synology_SA_18_21 Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 https://www.triplefault.io/2018/05/spurious-db-exceptions-with-pop-ss.html Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 https://xenbits.xen.org/xsa/advisory-260.html Patch, Third Party Advisory
Impacted products
Vendor Product Version
n/a n/a Version: n/a
Show details on NVD website

To clipboard 

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  "cveMetadata": {
    "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
    "assignerShortName": "mitre",
    "cveId": "CVE-2018-8897",
    "datePublished": "2018-05-08T18:00:00",
    "dateReserved": "2018-03-21T00:00:00",
    "dateUpdated": "2024-08-05T07:10:46.698Z",
    "state": "PUBLISHED"
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    "nvd": "{\"cve\":{\"id\":\"CVE-2018-8897\",\"sourceIdentifier\":\"cve@mitre.org\",\"published\":\"2018-05-08T18:29:00.547\",\"lastModified\":\"2024-11-21T04:14:33.140\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"A statement in the System Programming Guide of the Intel 64 and IA-32 Architectures Software Developer\u0027s 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 \u003c 3, the debug exception is delivered after the transfer to CPL \u003c 3 is complete. OS kernels may not expect this order of events and may therefore experience unexpected behavior when it occurs.\"},{\"lang\":\"es\",\"value\":\"Una declaraci\u00f3n en la gu\u00eda de programaci\u00f3n de sistemas del Manual del desarrollador de software (SDM) de las arquitecturas Intel 64 e IA-32 se manej\u00f3 incorrectamente en el desarrollo de algunos o todos los n\u00facleos del sistema operativo, lo que provoc\u00f3 un comportamiento inesperado para las excepciones #DB que son diferidas por MOV SS o POP SS, tal y como queda demostrado con (por ejemplo) el escalado de privilegios en Windows, macOS, algunas configuraciones Xen o FreeBSD, o un fallo del kernel de Linux. Las instrucciones de MOV a SS y POP SS inhiben interrupciones (incluyendo NMI), puntos de interrupci\u00f3n de datos y excepciones de trampas de un paso hasta los l\u00edmites de la instrucci\u00f3n que siguen a la siguiente instrucci\u00f3n (SDM Vol. 3A; secci\u00f3n 6.8.3). (Los puntos de interrupci\u00f3n de datos inhibidos son aquellos en la memoria a los que accede a la propia instrucci\u00f3n MOV a SS o POP a SS). Tenga en cuenta que las excepciones de depuraci\u00f3n no est\u00e1n inhibidas por el indicador del sistema de habilitaci\u00f3n de interrupciones (EFLAGS.IF) (SDM Vol. 3A; secci\u00f3n 2.3). Si la instrucci\u00f3n que sigue a la instrucci\u00f3n MOV a SS o POP a SS es una instrucci\u00f3n como SYSCALL, SYSENTER, INT 3, etc. que transfiere el control al sistema operativo a CPL \u003c 3, la excepci\u00f3n de depuraci\u00f3n se entrega despu\u00e9s de que la transferencia a CPL \u003c 3 se haya completado. Es posible que los kernels del sistema operativo no esperen este orden de eventos y, por lo tanto, puedan experimentar un comportamiento inesperado cuando 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  }
}


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Sightings

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  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
  • Confirmed: The vulnerability is confirmed from an analyst perspective.
  • Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
  • Patched: This vulnerability was successfully patched by the user reporting the sighting.
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  • Not confirmed: The user expresses doubt about the veracity of the vulnerability.
  • Not patched: This vulnerability was not successfully patched by the user reporting the sighting.