PT-2021-5822 · Xen+2 · Xen+2

Andrew Cooper · Published 2021-06-15 · Updated 2021-12-01 · CVE-2021-28690

Positive Technologies (AI Summary)

CVSS v3.1

6.5

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions Xen (affected versions not specified)

Description This issue relates to the TSX Async Abort speculative security vulnerability, which can lead to information disclosure. An attacker, acting remotely, may be able to access confidential data. The vulnerability is associated with the x86 architecture and the TSX Async Abort protections not being restored after S3 suspend. Mitigating this issue by disabling TSX requires selecting a non-default setting in MSR TSX CTRL, but this setting is not restored after S3 suspend.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Information Disclosure

Weakness Enumeration

CWE-200

Related Identifiers

BDU:2022-00319

CVE-2021-28690

DSA-4931-1

OPENSUSE-SU-2021:1236-1

OPENSUSE-SU-2021:2923-1

OPENSUSE-SU-2021_1236-1

OPENSUSE-SU-2021_2923-1

SUSE-SU-2021:14848-1

SUSE-SU-2021:2922-1

SUSE-SU-2021:2923-1

SUSE-SU-2021:2924-1

SUSE-SU-2021:2925-1

SUSE-SU-2021:2943-1

SUSE-SU-2021:2955-1

SUSE-SU-2021:2957-1

SUSE-SU-2021:3322-1

SUSE-SU-2021_14848-1

Affected Products

Astra Linux

Suse

Xen

References · 100

• https://osv.dev/vulnerability/ALPINE-CVE-2021-28690 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2021-28690 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2021:2957-1 · Vendor Advisory
• https://osv.dev/vulnerability/DSA-4931-1 · Vendor Advisory
• https://bdu.fstec.ru/vul/2022-00319 · Security Note
• https://xenbits.xenproject.org/xsa/advisory-377.txt · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-28690 · Security Note
• https://cve.org/CVERecord?id=CVE-2021-28690 · Security Note
• https://osv.dev/vulnerability/SUSE-SU-2021:2922-1 · Vendor Advisory
• https://osv.dev/vulnerability/openSUSE-SU-2021:1236-1 · Vendor Advisory
• https://wiki.astralinux.ru/astra-linux-se47-bulletin-2022-0114SE47 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2021:2943-1 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2021-28690 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2021:2924-1 · Vendor Advisory
• https://wiki.astralinux.ru/astra-linux-se17-bulletin-2021-1126SE17 · Vendor Advisory