PT-2019-5141 · Xen+1 · Xen+1

Paul Durrant · Published 2019-10-07 · Updated 2022-03-31 · CVE-2019-17343

Positive Technologies (AI Summary)

CVSS v2.0

6.9

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions Xen versions through 4.11.x

Description The issue is related to the physmap concept of hardware virtualization in the Xen hypervisor, which lacks proper input validation. This allows an attacker to gain unauthorized access to sensitive data, cause a denial of service, or compromise data integrity. The problem can be exploited by x86 PV guest OS users.

Recommendations For Xen versions through 4.11.x, update to a version that includes the necessary security patches to fix the issue with the physmap concept. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

DoS

RCE

Improper Locking

Weakness Enumeration

CWE-20

CWE-667

Related Identifiers

BDU:2020-01808

CVE-2019-17343

DLA-1949-1

DSA-4602-1

SUSE-RU-2019:2767-1

SUSE-SU-2019:14199-1

SUSE-SU-2019:14201-1

SUSE-SU-2019:2753-1

SUSE-SU-2019:2769-1

SUSE-SU-2019:2783-1

SUSE-SU-2019_14199-1

SUSE-SU-2020:0388-1

Affected Products

Suse

Xen

References · 111

• https://osv.dev/vulnerability/SUSE-RU-2019:2767-1 · Vendor Advisory
• https://wiki.astralinux.ru/astra-linux-se16-bulletin-20200327SE16 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2019:2753-1 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2019-17343 · Security Note
• https://osv.dev/vulnerability/DEBIAN-CVE-2019-17343 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2019:14199-1 · Vendor Advisory
• https://osv.dev/vulnerability/ALPINE-CVE-2019-17343 · Vendor Advisory
• https://debian.org/security/2020/dsa-4602 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2019-17343 · Vendor Advisory
• https://osv.dev/vulnerability/DSA-4602-1 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2019-17343 · Security Note
• https://osv.dev/vulnerability/SUSE-SU-2019:2769-1 · Vendor Advisory
• https://ubuntu.com/security/CVE-2019-17343 · Vendor Advisory
• https://xenbits.xen.org/xsa/advisory-288.html · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2019-17343 · Vendor Advisory