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CERTFR-2018-AVI-229
Vulnerability from certfr_avis
De multiples vulnérabilités ont été découvertes dans Xen. Elles permettent à un attaquant de provoquer un déni de service et une élévation de privilèges.
Solution
Se référer au bulletin de sécurité de l'éditeur pour l'obtention des correctifs (cf. section Documentation).
NoneImpacted products
References
| Title | Publication Time | Tags | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||
{
"$ref": "https://www.cert.ssi.gouv.fr/openapi.json",
"affected_systems": [
{
"description": "Xen toutes versions syst\u00e8mes x86 sans le dernier correctif de s\u00e9curit\u00e9",
"product": {
"name": "Xen",
"vendor": {
"name": "XEN",
"scada": false
}
}
}
],
"affected_systems_content": null,
"content": "## Solution\n\nSe r\u00e9f\u00e9rer au bulletin de s\u00e9curit\u00e9 de l\u0027\u00e9diteur pour l\u0027obtention des\ncorrectifs (cf. section Documentation).\n",
"cves": [
{
"name": "CVE-2018-8897",
"url": "https://www.cve.org/CVERecord?id=CVE-2018-8897"
}
],
"initial_release_date": "2018-05-09T00:00:00",
"last_revision_date": "2018-05-09T00:00:00",
"links": [],
"reference": "CERTFR-2018-AVI-229",
"revisions": [
{
"description": "Version initiale",
"revision_date": "2018-05-09T00:00:00.000000"
}
],
"risks": [
{
"description": "D\u00e9ni de service"
},
{
"description": "\u00c9l\u00e9vation de privil\u00e8ges"
}
],
"summary": "De multiples vuln\u00e9rabilit\u00e9s ont \u00e9t\u00e9 d\u00e9couvertes dans Xen. Elles\npermettent \u00e0 un attaquant de provoquer un d\u00e9ni de service et une\n\u00e9l\u00e9vation de privil\u00e8ges.\n",
"title": "Multiples vuln\u00e9rabilit\u00e9s dans Xen",
"vendor_advisories": [
{
"published_at": null,
"title": "Bulletin de s\u00e9curit\u00e9 Xen XSA-262 du 8 mai 2018",
"url": "http://xenbits.xen.org/xsa/advisory-262.html"
},
{
"published_at": null,
"title": "Bulletin de s\u00e9curit\u00e9 Xen XSA-261 du 8 mai 2018",
"url": "http://xenbits.xen.org/xsa/advisory-261.html"
},
{
"published_at": null,
"title": "Bulletin de s\u00e9curit\u00e9 Xen XSA-260 du 8 mai 2018",
"url": "http://xenbits.xen.org/xsa/advisory-260.html"
}
]
}
CVE-2018-8897 (GCVE-0-2018-8897)
Vulnerability from cvelistv5
Published
2018-05-08 18:00
Modified
2024-08-05 07:10
Severity ?
VLAI Severity ?
EPSS score ?
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
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"url": "https://support.citrix.com/article/CTX234679"
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"url": "https://support.apple.com/HT208742"
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"url": "https://svnweb.freebsd.org/base?view=revision\u0026revision=333368"
},
{
"name": "DSA-4196",
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],
"url": "https://www.debian.org/security/2018/dsa-4196"
},
{
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"url": "https://www.freebsd.org/security/advisories/FreeBSD-SA-18:06.debugreg.asc"
},
{
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"url": "https://www.debian.org/security/2018/dsa-4201"
},
{
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],
"url": "https://help.ecostruxureit.com/display/public/UADCE725/Security+fixes+in+StruxureWare+Data+Center+Expert+v7.6.0"
},
{
"name": "RHSA-2018:1355",
"tags": [
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"x_transferred"
],
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},
{
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],
"url": "https://security.netapp.com/advisory/ntap-20180927-0002/"
},
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"url": "https://patchwork.kernel.org/patch/10386677/"
},
{
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"third-party-advisory",
"x_refsource_CERT-VN",
"x_transferred"
],
"url": "https://www.kb.cert.org/vuls/id/631579"
},
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],
"url": "https://github.com/can1357/CVE-2018-8897/"
},
{
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"tags": [
"vendor-advisory",
"x_refsource_REDHAT",
"x_transferred"
],
"url": "https://access.redhat.com/errata/RHSA-2018:1524"
},
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"x_transferred"
],
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},
{
"name": "1040861",
"tags": [
"vdb-entry",
"x_refsource_SECTRACK",
"x_transferred"
],
"url": "http://www.securitytracker.com/id/1040861"
},
{
"name": "RHSA-2018:1353",
"tags": [
"vendor-advisory",
"x_refsource_REDHAT",
"x_transferred"
],
"url": "https://access.redhat.com/errata/RHSA-2018:1353"
},
{
"name": "USN-3641-2",
"tags": [
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],
"url": "https://usn.ubuntu.com/3641-2/"
},
{
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"url": "https://www.synology.com/support/security/Synology_SA_18_21"
},
{
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"tags": [
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"url": "http://www.securitytracker.com/id/1040882"
},
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"tags": [
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],
"url": "https://usn.ubuntu.com/3641-1/"
},
{
"tags": [
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"x_transferred"
],
"url": "http://www.huawei.com/en/psirt/security-advisories/huawei-sa-20190921-01-debug-en"
}
],
"title": "CVE Program Container"
}
],
"cna": {
"affected": [
{
"product": "n/a",
"vendor": "n/a",
"versions": [
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"version": "n/a"
}
]
}
],
"datePublic": "2018-05-08T00:00:00",
"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."
}
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"shortName": "mitre"
},
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},
{
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],
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},
{
"name": "104071",
"tags": [
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"x_refsource_BID"
],
"url": "http://www.securityfocus.com/bid/104071"
},
{
"name": "RHSA-2018:1350",
"tags": [
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],
"url": "https://access.redhat.com/errata/RHSA-2018:1350"
},
{
"tags": [
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],
"url": "https://support.citrix.com/article/CTX234679"
},
{
"name": "RHSA-2018:1347",
"tags": [
"vendor-advisory",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/errata/RHSA-2018:1347"
},
{
"name": "44697",
"tags": [
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],
"url": "https://www.exploit-db.com/exploits/44697/"
},
{
"name": "[debian-lts-announce] 20180525 [SECURITY] [DLA 1383-1] xen security update",
"tags": [
"mailing-list",
"x_refsource_MLIST"
],
"url": "https://lists.debian.org/debian-lts-announce/2018/05/msg00015.html"
},
{
"name": "1040866",
"tags": [
"vdb-entry",
"x_refsource_SECTRACK"
],
"url": "http://www.securitytracker.com/id/1040866"
},
{
"name": "[debian-lts-announce] 20181112 [SECURITY] [DLA 1577-1] xen security update",
"tags": [
"mailing-list",
"x_refsource_MLIST"
],
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},
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"tags": [
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"x_refsource_MLIST"
],
"url": "https://lists.debian.org/debian-lts-announce/2018/06/msg00000.html"
},
{
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],
"url": "https://support.apple.com/HT208742"
},
{
"name": "RHSA-2018:1346",
"tags": [
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"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/errata/RHSA-2018:1346"
},
{
"name": "RHSA-2018:1348",
"tags": [
"vendor-advisory",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/errata/RHSA-2018:1348"
},
{
"name": "RHSA-2018:1354",
"tags": [
"vendor-advisory",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/errata/RHSA-2018:1354"
},
{
"tags": [
"x_refsource_MISC"
],
"url": "https://svnweb.freebsd.org/base?view=revision\u0026revision=333368"
},
{
"name": "DSA-4196",
"tags": [
"vendor-advisory",
"x_refsource_DEBIAN"
],
"url": "https://www.debian.org/security/2018/dsa-4196"
},
{
"tags": [
"x_refsource_MISC"
],
"url": "https://www.freebsd.org/security/advisories/FreeBSD-SA-18:06.debugreg.asc"
},
{
"name": "1040744",
"tags": [
"vdb-entry",
"x_refsource_SECTRACK"
],
"url": "http://www.securitytracker.com/id/1040744"
},
{
"tags": [
"x_refsource_MISC"
],
"url": "https://www.triplefault.io/2018/05/spurious-db-exceptions-with-pop-ss.html"
},
{
"name": "RHSA-2018:1351",
"tags": [
"vendor-advisory",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/errata/RHSA-2018:1351"
},
{
"tags": [
"x_refsource_MISC"
],
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=1567074"
},
{
"tags": [
"x_refsource_MISC"
],
"url": "https://xenbits.xen.org/xsa/advisory-260.html"
},
{
"name": "RHSA-2018:1319",
"tags": [
"vendor-advisory",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/errata/RHSA-2018:1319"
},
{
"name": "DSA-4201",
"tags": [
"vendor-advisory",
"x_refsource_DEBIAN"
],
"url": "https://www.debian.org/security/2018/dsa-4201"
},
{
"tags": [
"x_refsource_CONFIRM"
],
"url": "https://help.ecostruxureit.com/display/public/UADCE725/Security+fixes+in+StruxureWare+Data+Center+Expert+v7.6.0"
},
{
"name": "RHSA-2018:1355",
"tags": [
"vendor-advisory",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/errata/RHSA-2018:1355"
},
{
"tags": [
"x_refsource_CONFIRM"
],
"url": "https://security.netapp.com/advisory/ntap-20180927-0002/"
},
{
"name": "RHSA-2018:1345",
"tags": [
"vendor-advisory",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/errata/RHSA-2018:1345"
},
{
"name": "45024",
"tags": [
"exploit",
"x_refsource_EXPLOIT-DB"
],
"url": "https://www.exploit-db.com/exploits/45024/"
},
{
"name": "RHSA-2018:1349",
"tags": [
"vendor-advisory",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/errata/RHSA-2018:1349"
},
{
"tags": [
"x_refsource_CONFIRM"
],
"url": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8897"
},
{
"name": "RHSA-2018:1352",
"tags": [
"vendor-advisory",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/errata/RHSA-2018:1352"
},
{
"name": "RHSA-2018:1318",
"tags": [
"vendor-advisory",
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- 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.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- 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.
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