PT-2019-4891 · Xen+1 · Xen+1

Jan Beulich · Published 2019-07-10 · Updated 2023-02-03 · CVE-2019-17341

Positive Technologies (AI Summary)

CVSS v3.1

7.8

High

Base vector

AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H

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

Description The issue is caused by synchronization errors when using a shared resource, allowing an attacker to cause a denial of service or gain privileges by leveraging a page-writability race condition during the addition of a passed-through PCI device.

Recommendations For Xen versions prior to 4.11.x, consider restricting the addition of passed-through PCI devices to minimize the risk of exploitation until a patch is available. As a temporary workaround, consider disabling the functionality related to the addition of PCI devices with pass-through functionality until a fix is provided. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

DoS

Race Condition

Weakness Enumeration

CWE-362

Related Identifiers

BDU:2020-01482

CVE-2019-17341

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 · 112

• https://osv.dev/vulnerability/UBUNTU-CVE-2019-17341 · Vendor Advisory
• https://ubuntu.com/security/CVE-2019-17341 · Vendor Advisory
• 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-2019-17341 · Security Note
• https://osv.dev/vulnerability/ALPINE-CVE-2019-17341 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2019-17341 · Vendor Advisory
• http://xenbits.xen.org/xsa/advisory-285.html · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2019-17341 · Security Note
• https://debian.org/security/2020/dsa-4602 · Vendor Advisory
• https://bdu.fstec.ru/vul/2020-01482 · Security Note
• https://osv.dev/vulnerability/DSA-4602-1 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2019:2769-1 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2019-17341 · Vendor Advisory