CVE-2014-7155: debian debian_linux
Vulnerability summary
CVE-2014-7155 is a medium (CVSS 5.8) vulnerability in debian debian_linux. EPSS estimates a 0.97% chance of exploitation in the next 30 days, higher than 61.8% of scored vulnerabilities.
Not severe (CVSS 5.8, adjacent network); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 2 · Related 1Timeline
- 02-10-2014PublishedVulnerability first disclosed.
- 06-08-2024Last modifiedVulnerability information updated.
Description
The x86_emulate function in arch/x86/x86_emulate/x86_emulate.c in Xen 4.4.x and earlier does not properly check supervisor mode permissions, which allows local HVM users to cause a denial of service (guest crash) or gain guest kernel mode privileges via vectors involving an (1) HLT, (2) LGDT, (3) LIDT, or (4) LMSW instruction.
CVSS metrics
1 score · 1 source · 1 versionEPSS trend
Probability
0.97%
Chance of exploitation in the next 30 days
Percentile
62%
Versus all other CVEs
30-day change
No change 0.00 pp
From 0.97% on 04-10-2026
Known exploited
Compare KEV catalogs
CISA KEVNot in the CISA KEV catalog.
ENISA CNWNot in the ENISA CNW catalog.
CIRCLNot in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Known conditions: adjacent network, no authentication (CVSS vector). Other conditions: not stated in public data.
Debian2 products
- xen< 4.4.1-3
- debian_linuxEOL7.0
Fedoraproject1 product
- fedoraEOL19 | 20
Opensuse1 product
- opensuseEOL12.3 | 13.1
Ubuntu1 product
- xen< 4.4.0-0ubuntu5.2
Xen1 product
- xen≤ 4.4.0 | 3.0.2 | 3.0.3 | 3.0.4 | 3.1.3 | 3.1.4 | 3.2.0 | 3.2.1 | 3.2.2 | 3.2.3 | 3.3.0 | 3.3.1 | 3.3.2 | 3.4.0 | 3.4.1 | 3.4.2 | 3.4.3 | 3.4.4 | 4.0.0 | 4.0.1 | 4.0.2 | 4.0.3 | 4.0.4 | 4.1.0 | 4.1.1 | 4.1.2 | 4.1.3 | 4.1.4 | 4.1.5 | 4.1.6.1 | 4.2.0 | 4.2.1 | 4.2.2 | 4.2.3 | 4.3.0 | 4.3.1 | 4.4.0 | 4.4.0:rc1
5 vendors · 6 products
References
15 links- lists.opensuse.org/opensuse-security-announce/2014-10/msg00003.htmlVendor AdvisoryX Refsource SUSEThird Party Advisory
- lists.fedoraproject.org/pipermail/package-announce/2014-October/140483.htmlVendor AdvisoryX Refsource FEDORAThird Party Advisory
- lists.opensuse.org/opensuse-security-announce/2014-10/msg00002.htmlVendor AdvisoryX Refsource SUSEThird Party Advisory
- lists.fedoraproject.org/pipermail/package-announce/2014-October/140418.htmlVendor AdvisoryX Refsource FEDORAThird Party Advisory
