PT-2015-5631 · Xen+2 · Xen+2

Felix Wilhelm · Published 2015-03-09 · Updated 2018-10-30 · CVE-2015-2151

Positive Technologies (AI Summary)

CVSS v2.0

7.2

High

Base vector

AV:L/AC:L/Au:N/C:C/I:C/A:C

Name of the Vulnerable Software and Affected Versions Xen versions 3.2.x through 4.5.x

Description The issue concerns the x86 emulator in Xen, which fails to properly ignore segment overrides for certain instructions. This can be exploited by local guest users to obtain sensitive information, cause memory corruption leading to a denial of service, or potentially execute arbitrary code.

Recommendations For Xen versions 3.2.x through 4.5.x, update to a version that includes the fix for this issue. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

DoS

Weakness Enumeration

CWE-264

Related Identifiers

CVE-2015-2151

DSA-3181-1

MGASA-2016-0098

OPENSUSE-SU-2015_0732-1

OPENSUSE-SU-2015_1092-1

RHSA-2016:0450

RHSA-2016_0450

SUSE-SU-2015:0613-1

SUSE-SU-2015:0745-1

SUSE-SU-2015:0746-1

SUSE-SU-2015:0747-1

Affected Products

Red Hat

Suse

Xen

References · 162

• 🔥 https://github.com/hiikezoe/libfb_mem_exploit · Exploit
• 🔥 https://github.com/vincentbernat/cve-2015-3456 · Exploit
• https://osv.dev/vulnerability/MGASA-2016-0098 · Vendor Advisory
• https://advisories.mageia.org/MGASA-2016-0098.html · Security Note
• https://osv.dev/vulnerability/UBUNTU-CVE-2015-2151 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2015-2151 · Vendor Advisory
• https://bdu.fstec.ru/vul/2015-10460 · Security Note
• https://security-tracker.debian.org/tracker/source-package/xen · Vendor Advisory
• http://debian.org/security/2015/dsa-3181 · Vendor Advisory
• http://xenbits.xen.org/xsa/advisory-123.html · Vendor Advisory
• https://bdu.fstec.ru/vul/2015-10395 · Security Note
• https://bdu.fstec.ru/vul/2015-10459 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2015-2151 · Security Note
• https://bdu.fstec.ru/vul/2015-07329 · Security Note
• http://lists.opensuse.org/opensuse-security-announce/2015-04/msg00014.html · Vendor Advisory