CVE-2014-8595
arch/x86/x86_emulate/x86_emulate.c in Xen 3.2.1 through 4.4.x does not properly check privileges, which allows local HVM guest users to gain privileges or cause a denial of service (crash) via a crafted (1) CALL, (2) JMP, (3) RETF, (4) LCALL, (5) LJMP,…
Does this matter?
Lower severity and a low EPSS score (0.41%). Track it; it rarely justifies an emergency change on its own.
Description
arch/x86/x86_emulate/x86_emulate.c in Xen 3.2.1 through 4.4.x does not properly check privileges, which allows local HVM guest users to gain privileges or cause a denial of service (crash) via a crafted (1) CALL, (2) JMP, (3) RETF, (4) LCALL, (5) LJMP, or (6) LRET far branch instruction.
- CVSS 2.0
- 1.9 LOWAV:L/AC:M/Au:N/C:N/I:N/A:P
- EPSS
- 0.41% probability · 35th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-17
- Affected
- debian/debian linux · xen/xen · opensuse/opensuse
- Source
- cve@mitre.org
References
- http://lists.opensuse.org/opensuse-security-announce/2015-02/msg00005.htmlThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2015-02/msg00010.htmlThird Party Advisory
- http://secunia.com/advisories/62537
- http://secunia.com/advisories/62672
- http://support.citrix.com/article/CTX200288
- http://support.citrix.com/article/CTX201794
- http://www.debian.org/security/2015/dsa-3140Third Party Advisory
- http://www.securityfocus.com/bid/71151
- http://xenbits.xen.org/xsa/advisory-110.htmlPatch, Vendor Advisory
- https://exchange.xforce.ibmcloud.com/vulnerabilities/98768
- https://security.gentoo.org/glsa/201504-04
- http://lists.opensuse.org/opensuse-security-announce/2015-02/msg00005.htmlThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2015-02/msg00010.htmlThird Party Advisory
- http://secunia.com/advisories/62537
- http://secunia.com/advisories/62672
- http://support.citrix.com/article/CTX200288
- http://support.citrix.com/article/CTX201794
- http://www.debian.org/security/2015/dsa-3140Third Party Advisory
- http://www.securityfocus.com/bid/71151
- http://xenbits.xen.org/xsa/advisory-110.htmlPatch, Vendor Advisory
- https://exchange.xforce.ibmcloud.com/vulnerabilities/98768
- https://security.gentoo.org/glsa/201504-04
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.