CVE-2014-7156
published 2014-10-02CVE-2014-7156: The x86_emulate function in arch/x86/x86_emulate/x86_emulate.c in Xen 3.3.x through 4.4.x does not check the supervisor mode permissions for instructions that…
PriorityP49low3.3CVSS 2.0
AVAACLAuNCNINAP
EPSS
0.85%
53.8th percentile
The x86_emulate function in arch/x86/x86_emulate/x86_emulate.c in Xen 3.3.x through 4.4.x does not check the supervisor mode permissions for instructions that generate software interrupts, which allows local HVM guest users to cause a denial of service (guest crash) via unspecified vectors.
Affected
23 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | xen | < xen 4.4.1-3 (bookworm) | xen 4.4.1-3 (bookworm) |
| xen | xen | — | — |
| xen | xen | — | — |
| xen | xen | — | — |
| xen | xen | — | — |
| xen | xen | — | — |
| xen | xen | — | — |
| xen | xen | — | — |
| xen | xen | — | — |
| xen | xen | — | — |
| xen | xen | — | — |
| xen | xen | — | — |
| xen | xen | — | — |
| xen | xen | — | — |
| xen | xen | — | — |
| xen | xen | — | — |
| xen | xen | — | — |
| xen | xen | — | — |
| xen | xen | — | — |
| xen | xen | >= 0 < 4.4.1-3 | 4.4.1-3 |
| xen | xen | >= 0 < 4.4.1-3 | 4.4.1-3 |
| xen | xen | >= 0 < 4.4.1-3 | 4.4.1-3 |
| xen | xen | >= 0 < 4.4.1-3 | 4.4.1-3 |
CVSS provenance
nvdv2.03.3LOWAV:A/AC:L/Au:N/C:N/I:N/A:P
osv3.3LOW
vendor_debian3.3LOW
vendor_redhat3.3LOW
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Red Hat
kernel: xen: Missing privilege level checks in x86 emulation of software interrupts (XSA-106)
vendor_redhat·2014-09-23·CVSS 3.3
CVE-2014-7156 [LOW] CWE-862 kernel: xen: Missing privilege level checks in x86 emulation of software interrupts (XSA-106)
kernel: xen: Missing privilege level checks in x86 emulation of software interrupts (XSA-106)
The x86_emulate function in arch/x86/x86_emulate/x86_emulate.c in Xen 3.3.x through 4.4.x does not check the supervisor mode permissions for instructions that generate software interrupts, which allows local HVM guest users to cause a denial of service (guest crash) via unspecified vectors.
Statement: Not vulnerable.
This issue did not affect the versions of the kernel-xen package as shipped with Red Hat Enterprise Linux 5.
Package: kernel-xen (Red Hat Enterprise Linux 5) - Not affected
Debian
CVE-2014-7156: xen - The x86_emulate function in arch/x86/x86_emulate/x86_emulate.c in Xen 3.3.x thro...
vendor_debian·2014·CVSS 3.3
CVE-2014-7156 [LOW] CVE-2014-7156: xen - The x86_emulate function in arch/x86/x86_emulate/x86_emulate.c in Xen 3.3.x thro...
The x86_emulate function in arch/x86/x86_emulate/x86_emulate.c in Xen 3.3.x through 4.4.x does not check the supervisor mode permissions for instructions that generate software interrupts, which allows local HVM guest users to cause a denial of service (guest crash) via unspecified vectors.
Scope: local
bookworm: resolved (fixed in 4.4.1-3)
bullseye: resolved (fixed in 4.4.1-3)
forky: resolved (fixed in 4.4.1-3)
sid: resolved (fixed in 4.4.1-3)
trixie: resolved (fixed in 4.4.1-3)
GHSA
GHSA-fwm9-x5p7-wwvw: The x86_emulate function in arch/x86/x86_emulate/x86_emulate
ghsa_unreviewed·2022-05-14
CVE-2014-7156 [LOW] GHSA-fwm9-x5p7-wwvw: The x86_emulate function in arch/x86/x86_emulate/x86_emulate
The x86_emulate function in arch/x86/x86_emulate/x86_emulate.c in Xen 3.3.x through 4.4.x does not check the supervisor mode permissions for instructions that generate software interrupts, which allows local HVM guest users to cause a denial of service (guest crash) via unspecified vectors.
OSV
CVE-2014-7156: The x86_emulate function in arch/x86/x86_emulate/x86_emulate
osv·2014-10-02·CVSS 3.3
CVE-2014-7156 [LOW] CVE-2014-7156: The x86_emulate function in arch/x86/x86_emulate/x86_emulate
The x86_emulate function in arch/x86/x86_emulate/x86_emulate.c in Xen 3.3.x through 4.4.x does not check the supervisor mode permissions for instructions that generate software interrupts, which allows local HVM guest users to cause a denial of service (guest crash) via unspecified vectors.
No detection rules found.
No public exploits indexed.
Bugzilla
CVE-2014-7156 kernel: xen: Missing privilege level checks in x86 emulation of software interrupts (xsa106) [fedora-all]
bugzilla·2014-09-23·CVSS 3.3
CVE-2014-7156 [LOW] CVE-2014-7156 kernel: xen: Missing privilege level checks in x86 emulation of software interrupts (xsa106) [fedora-all]
CVE-2014-7156 kernel: xen: Missing privilege level checks in x86 emulation of software interrupts (xsa106) [fedora-all]
This is an automatically created tracking bug! It was created to ensure
that one or more security vulnerabilities are fixed in affected versions
of Fedora.
For comments that are specific to the vulnerability please use bugs filed
against the "Security Response" product referenced in the "Blocks" field.
For more information see:
http://fedoraproject.org/wiki/Security/TrackingBugs
When submitting as an update, use the fedpkg template provided in the next
comment(s). This will include the bug IDs of this tracking bug as well as
the relevant top-level CVE bugs.
Please also mention the CVE IDs being fixed in the RPM changelog and the
fedpkg commit message.
NOTE: this iss
Bugzilla
CVE-2014-7156 kernel: xen: Missing privilege level checks in x86 emulation of software interrupts (XSA-106)
bugzilla·2014-09-10·CVSS 3.3
CVE-2014-7156 [LOW] CVE-2014-7156 kernel: xen: Missing privilege level checks in x86 emulation of software interrupts (XSA-106)
CVE-2014-7156 kernel: xen: Missing privilege level checks in x86 emulation of software interrupts (XSA-106)
The emulation of instructions which generate software interrupts fails
to perform supervisor mode permission checks.
Malicious HVM guest user mode code may be able to crash the guest.
Acknowledgements:
Red Hat would like to thank the Xen for reporting this issue.
Discussion:
Statement:
Not vulnerable.
This issue did not affect the versions of the kernel-xen package as shipped with Red Hat Enterprise Linux 5.
---
Created xen tracking bugs for this issue:
Affects: fedora-all [bug 1145738]
http://lists.fedoraproject.org/pipermail/package-announce/2014-October/140418.htmlhttp://lists.fedoraproject.org/pipermail/package-announce/2014-October/140483.htmlhttp://lists.opensuse.org/opensuse-security-announce/2014-10/msg00002.htmlhttp://lists.opensuse.org/opensuse-security-announce/2014-10/msg00003.htmlhttp://secunia.com/advisories/61500http://secunia.com/advisories/61858http://secunia.com/advisories/61890http://security.gentoo.org/glsa/glsa-201412-42.xmlhttp://support.citrix.com/article/CTX200218http://www.debian.org/security/2014/dsa-3041http://www.securityfocus.com/bid/70062http://www.securitytracker.com/id/1030889http://xenbits.xen.org/xsa/advisory-106.htmlhttp://lists.fedoraproject.org/pipermail/package-announce/2014-October/140418.htmlhttp://lists.fedoraproject.org/pipermail/package-announce/2014-October/140483.htmlhttp://lists.opensuse.org/opensuse-security-announce/2014-10/msg00002.htmlhttp://lists.opensuse.org/opensuse-security-announce/2014-10/msg00003.htmlhttp://secunia.com/advisories/61500http://secunia.com/advisories/61858http://secunia.com/advisories/61890http://security.gentoo.org/glsa/glsa-201412-42.xmlhttp://support.citrix.com/article/CTX200218http://www.debian.org/security/2014/dsa-3041http://www.securityfocus.com/bid/70062http://www.securitytracker.com/id/1030889http://xenbits.xen.org/xsa/advisory-106.html
2014-10-02
Published