PT-2014-4351 · Xen+1 · Xen+1

Published 2014-04-01 · Updated 2017-01-07 · CVE-2014-1896

Positive Technologies (AI Summary)

CVSS v2.0

4.9

Medium

Base vector

AV:A/AC:M/Au:S/C:P/I:P/A:P

Name of the Vulnerable Software and Affected Versions Xen versions 4.2.x through 4.4-RC

Description The issue is related to the do send and do recv functions in io.c in libvchan, which allows local guests to cause a denial of service or possibly gain privileges via crafted xenstore ring indexes. This triggers a "read or write past the end of the ring."

Recommendations For Xen versions 4.2.x through 4.4-RC, consider restricting access to the vulnerable do send and do recv functions in io.c in libvchan as a temporary workaround until a patch is available.

Fix

DoS

RCE

Weakness Enumeration

CWE-20

Related Identifiers

CVE-2014-1896

Affected Products

Suse

Xen

References · 10

• http://security.gentoo.org/glsa/glsa-201407-03.xml · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2014-1896 · Vendor Advisory
• http://xenbits.xen.org/xsa/xsa86.patch · Patch
• https://osv.dev/vulnerability/CVE-2014-1896 · Vendor Advisory
• http://xenbits.xen.org/xsa/advisory-86.html · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2014-1896 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2014-1896 · Security Note
• http://lists.opensuse.org/opensuse-security-announce/2014-03/msg00011.html · Vendor Advisory
• http://openwall.com/lists/oss-security/2014/02/07/12 · Note
• http://openwall.com/lists/oss-security/2014/02/10/7 · Note