Vulnerability Name:

CVE-2021-28692 (CCN-203192)

Assigned:2021-06-08
Published:2021-06-08
Updated:2021-07-12
Summary:inappropriate x86 IOMMU timeout detection / handling IOMMUs process commands issued to them in parallel with the operation of the CPU(s) issuing such commands. In the current implementation in Xen, asynchronous notification of the completion of such commands is not used. Instead, the issuing CPU spin-waits for the completion of the most recently issued command(s). Some of these waiting loops try to apply a timeout to fail overly-slow commands. The course of action upon a perceived timeout actually being detected is inappropriate: - on Intel hardware guests which did not originally cause the timeout may be marked as crashed, - on AMD hardware higher layer callers would not be notified of the issue, making them continue as if the IOMMU operation succeeded.
CVSS v3 Severity:7.1 High (CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H)
6.2 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): High
Integrity (I): None
Availibility (A): High
8.5 High (CCN CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:H)
7.4 High (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:H/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope:Scope (S): Changed
Impact Metrics:Confidentiality (C): Low
Integrity (I): Low
Availibility (A): High
CVSS v2 Severity:5.6 Medium (CVSS v2 Vector: AV:L/AC:L/Au:N/C:P/I:N/A:C)
Exploitability Metrics:Access Vector (AV): Local
Access Complexity (AC): Low
Authentication (Au): None
Impact Metrics:Confidentiality (C): Partial
Integrity (I): None
Availibility (A): Complete
6.1 Medium (CCN CVSS v2 Vector: AV:L/AC:L/Au:N/C:P/I:P/A:C)
Exploitability Metrics:Access Vector (AV): Local
Access Complexity (AC): Low
Athentication (Au): None
Impact Metrics:Confidentiality (C): Partial
Integrity (I): Partial
Availibility (A): Complete
Vulnerability Type:CWE-269
Vulnerability Consequences:Gain Privileges
References:Source: MITRE
Type: CNA
CVE-2021-28692

Source: CCN
Type: Xen Security Advisory XSA-373
inappropriate x86 IOMMU timeout detection / handling

Source: XF
Type: UNKNOWN
xen-cve202128692-priv-esc(203192)

Source: GENTOO
Type: Mitigation, Third Party Advisory
GLSA-202107-30

Source: CCN
Type: WhiteSource Vulnerability Database
CVE-2021-28692

Source: MISC
Type: Vendor Advisory
https://xenbits.xenproject.org/xsa/advisory-373.txt

Vulnerable Configuration:Configuration 1:
  • cpe:/o:xen:xen:*:*:*:*:*:*:*:* (Version >= 3.2.0

    • Configuration CCN 1:
  • cpe:/a:xensource:xen:3.3.0:*:*:*:*:*:*:*
  • OR cpe:/a:xensource:xen:4.0:*:*:*:*:*:*:*
  • OR cpe:/a:xensource:xen:4.1.1:*:*:*:*:*:*:*
  • OR cpe:/a:xensource:xen:4.1.2:*:*:*:*:*:*:*
  • OR cpe:/a:xensource:xen:4.1:*:*:*:*:*:*:*
  • OR cpe:/a:xensource:xen:3.4:*:*:*:*:*:*:*
  • OR cpe:/a:xensource:xen:4.2:*:*:*:*:*:*:*
  • OR cpe:/a:xensource:xen:4.0.0:*:*:*:*:*:*:*
  • OR cpe:/a:xensource:xen:3.4.0:*:*:*:*:*:*:*
  • OR cpe:/a:xensource:xen:4.4:*:*:*:*:*:*:*
  • OR cpe:/a:xensource:xen:4.5:*:*:*:*:*:*:*
  • OR cpe:/a:xensource:xen:4.6:*:*:*:*:*:*:*
  • OR cpe:/a:xensource:xen:4.7:*:*:*:*:*:*:*
  • OR cpe:/a:xensource:xen:4.8:*:*:*:*:*:*:*
  • OR cpe:/a:xensource:xen:4.9:*:*:*:*:*:*:*
  • OR cpe:/a:xensource:xen:4.10:*:*:*:*:*:*:*
  • OR cpe:/a:xensource:xen:4.11:*:*:*:*:*:*:*
  • OR cpe:/a:xensource:xen:4.12:*:*:*:*:*:*:*
  • OR cpe:/a:xensource:xen:4.13:*:*:*:*:*:*:*
  • OR cpe:/a:xensource:xen:4.14:*:*:*:*:*:*:*
  • OR cpe:/a:xensource:xen:4.12.3:*:*:*:*:*:*:*
  • OR cpe:/a:xensource:xen:4.12.4:*:*:*:*:*:*:*
  • OR cpe:/a:xensource:xen:4.13.1:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    Oval Definitions
    Definition IDClassTitleLast Modified
    oval:org.opensuse.security:def:7987
    P
    		apache-commons-compress-1.21-150200.3.13.4 on GA media (Moderate)
    2023-06-20
    oval:org.opensuse.security:def:8050
    P
    		perl-Archive-Extract-0.80-1.24 on GA media (Moderate)
    2023-06-20
    oval:org.opensuse.security:def:7831
    P
    		xen-libs-4.17.0_06-150500.1.10 on GA media (Moderate)
    2023-06-12
    oval:org.opensuse.security:def:51952
    P
    		Security update for libX11 (Moderate)
    2022-11-15
    oval:org.opensuse.security:def:767
    P
    		Security update for sqlite3 (Moderate)
    2022-09-19
    oval:org.opensuse.security:def:95375
    P
    		Security update for MozillaThunderbird (Important) (in QA)
    2022-08-01
    oval:org.opensuse.security:def:3225
    P
    		libopus0-1.1-3.1 on GA media (Moderate)
    2022-06-28
    oval:org.opensuse.security:def:3479
    P
    		e2fsprogs-1.43.8-3.8.1 on GA media (Moderate)
    2022-06-28
    oval:org.opensuse.security:def:3535
    P
    		java-1_8_0-openjdk-1.8.0.222-27.35.2 on GA media (Moderate)
    2022-06-28
    oval:org.opensuse.security:def:3668
    P
    		librelp0-1.2.12-3.3.1 on GA media (Moderate)
    2022-06-28
    oval:org.opensuse.security:def:94855
    P
    		xen-libs-4.16.0_08-150400.2.12 on GA media (Moderate)
    2022-06-22
    oval:org.opensuse.security:def:95165
    P
    		xen-4.16.0_08-150400.2.12 on GA media (Moderate)
    2022-06-22
    oval:org.opensuse.security:def:94591
    P
    		kernel-firmware-all-20220119-150400.2.3 on GA media (Moderate)
    2022-06-22
    oval:org.opensuse.security:def:388
    P
    		xen-libs-4.16.0_08-150400.2.12 on GA media (Moderate)
    2022-06-10
    oval:org.opensuse.security:def:93134
    P
    		 (Important)
    2022-05-10
    oval:org.opensuse.security:def:102088
    P
    		Security update for icedtea-web (Important)
    2022-04-19
    oval:org.opensuse.security:def:99733
    P
    		 (Important)
    2022-04-13
    oval:org.opensuse.security:def:6160
    P
    		Security update for apache2 (Important)
    2022-02-16
    oval:org.opensuse.security:def:41886
    P
    		Security update for xen (Moderate)
    2021-12-01
    oval:org.opensuse.security:def:46316
    P
    		Security update for xen (Moderate)
    2021-12-01
    oval:org.opensuse.security:def:30256
    P
    		Security update for xen (Moderate)
    2021-10-07
    oval:org.opensuse.security:def:55256
    P
    		Security update for xen (Moderate)
    2021-10-07
    oval:org.opensuse.security:def:82640
    P
    		Security update for xen (Moderate)
    2021-10-07
    oval:org.opensuse.security:def:29433
    P
    		Security update for xen (Moderate)
    2021-10-07
    oval:org.opensuse.security:def:55959
    P
    		Security update for xen (Moderate)
    2021-10-07
    oval:org.opensuse.security:def:83343
    P
    		Security update for xen (Moderate)
    2021-10-07
    oval:org.opensuse.security:def:30136
    P
    		Security update for xen (Moderate)
    2021-10-07
    oval:org.opensuse.security:def:56079
    P
    		Security update for xen (Moderate)
    2021-10-07
    oval:org.opensuse.security:def:83463
    P
    		Security update for xen (Moderate)
    2021-10-07
    oval:org.opensuse.security:def:111049
    P
    		Security update for xen (Important)
    2021-09-07
    oval:org.opensuse.security:def:32181
    P
    		Security update for xen (Important)
    2021-09-06
    oval:org.opensuse.security:def:58820
    P
    		Security update for xen (Important)
    2021-09-06
    oval:org.opensuse.security:def:86143
    P
    		Security update for xen (Important)
    2021-09-06
    oval:org.opensuse.security:def:57088
    P
    		Security update for xen (Important)
    2021-09-06
    oval:org.opensuse.security:def:84207
    P
    		Security update for xen (Important)
    2021-09-06
    oval:org.opensuse.security:def:32997
    P
    		Security update for xen (Important)
    2021-09-06
    oval:org.opensuse.security:def:86645
    P
    		Security update for xen (Important)
    2021-09-06
    oval:org.opensuse.security:def:31265
    P
    		Security update for xen (Important)
    2021-09-06
    oval:org.opensuse.security:def:57502
    P
    		Security update for xen (Important)
    2021-09-06
    oval:org.opensuse.security:def:84665
    P
    		Security update for xen (Important)
    2021-09-06
    oval:org.opensuse.security:def:87461
    P
    		Security update for xen (Important)
    2021-09-06
    oval:org.opensuse.security:def:31679
    P
    		Security update for xen (Important)
    2021-09-06
    oval:org.opensuse.security:def:58004
    P
    		Security update for xen (Important)
    2021-09-06
    oval:org.opensuse.security:def:85729
    P
    		Security update for xen (Important)
    2021-09-06
    oval:org.opensuse.security:def:23666
    P
    		Security update for xen (Important)
    2021-09-06
    oval:org.opensuse.security:def:51654
    P
    		Security update for xen (Important)
    2021-09-06
    oval:org.opensuse.security:def:23964
    P
    		Security update for xen (Important)
    2021-09-03
    oval:org.opensuse.security:def:8650
    P
    		Security update for xen (Important)
    2021-09-03
    oval:org.opensuse.security:def:88501
    P
    		Security update for xen (Important)
    2021-09-03
    oval:org.opensuse.security:def:127162
    P
    		Security update for xen (Important)
    2021-09-03
    oval:org.opensuse.security:def:99141
    P
    		 (Important)
    2021-09-03
    oval:org.opensuse.security:def:59534
    P
    		Security update for xen (Important)
    2021-09-03
    oval:org.opensuse.security:def:89189
    P
    		Security update for xen (Important)
    2021-09-03
    oval:org.opensuse.security:def:33711
    P
    		Security update for xen (Important)
    2021-09-03
    oval:org.opensuse.security:def:59792
    P
    		Security update for xen (Important)
    2021-09-03
    oval:org.opensuse.security:def:125597
    P
    		Security update for xen (Important)
    2021-09-03
    oval:org.opensuse.security:def:70290
    P
    		Security update for xen (Important)
    2021-09-03
    oval:org.opensuse.security:def:89447
    P
    		Security update for xen (Important)
    2021-09-03
    oval:org.opensuse.security:def:10150
    P
    		Security update for xen (Important)
    2021-09-03
    oval:org.opensuse.security:def:69536
    P
    		Security update for xen (Important)
    2021-09-03
    oval:org.opensuse.security:def:33969
    P
    		Security update for xen (Important)
    2021-09-03
    oval:org.opensuse.security:def:88185
    P
    		Security update for xen (Important)
    2021-09-03
    oval:org.opensuse.security:def:126765
    P
    		Security update for xen (Important)
    2021-09-03
    oval:org.opensuse.security:def:9396
    P
    		Security update for xen (Important)
    2021-09-03
    oval:org.opensuse.security:def:5827
    P
    		Security update for xen (Important)
    2021-09-02
    oval:org.opensuse.security:def:67249
    P
    		Security update for xen (Important)
    2021-09-02
    oval:org.opensuse.security:def:98946
    P
    		Security update for xen (Important)
    2021-09-02
    oval:org.opensuse.security:def:117484
    P
    		Security update for xen (Important)
    2021-09-02
    oval:org.opensuse.security:def:96068
    P
    		Security update for xen (Important)
    2021-09-02
    oval:org.opensuse.security:def:1627
    P
    		Security update for xen (Important)
    2021-09-02
    oval:org.opensuse.security:def:10335
    P
    		Security update for xen (Important)
    2021-09-02
    oval:org.opensuse.security:def:92584
    P
    		Security update for xen (Important)
    2021-09-02
    oval:org.opensuse.security:def:99674
    P
    		 (Important)
    2021-09-02
    oval:org.opensuse.security:def:69725
    P
    		Security update for xen (Important)
    2021-09-02
    oval:org.opensuse.security:def:34528
    P
    		Security update for xen (Important)
    2021-09-02
    oval:org.opensuse.security:def:64568
    P
    		Security update for xen (Important)
    2021-09-02
    oval:org.opensuse.security:def:109424
    P
    		Security update for xen (Important)
    2021-09-02
    oval:org.opensuse.security:def:76317
    P
    		Security update for xen (Important)
    2021-09-02
    oval:org.opensuse.security:def:93287
    P
    		Security update for xen (Important)
    2021-09-02
    oval:org.opensuse.security:def:101498
    P
    		Security update for xen (Important)
    2021-09-02
    oval:org.opensuse.security:def:9585
    P
    		Security update for xen (Important)
    2021-09-02
    oval:org.opensuse.security:def:91996
    P
    		Security update for xen (Important)
    2021-09-02
    oval:org.opensuse.security:def:102758
    P
    		Security update for xen (Important)
    2021-09-02
    oval:org.opensuse.security:def:69076
    P
    		Security update for xen (Important)
    2021-09-02
    oval:org.opensuse.security:def:118520
    P
    		Security update for xen (Important)
    2021-09-02
    oval:org.opensuse.security:def:26117
    P
    		Security update for xen (Important)
    2021-09-02
    oval:org.opensuse.security:def:111699
    P
    		Security update for xen (Important)
    2021-09-02
    oval:org.opensuse.security:def:73690
    P
    		Security update for xen (Important)
    2021-09-02
    oval:org.opensuse.security:def:92783
    P
    		Security update for xen (Important)
    2021-09-02
    oval:org.opensuse.security:def:99988
    P
    		 (Important)
    2021-09-02
    oval:org.opensuse.security:def:8835
    P
    		Security update for xen (Important)
    2021-09-02
    oval:org.opensuse.security:def:69924
    P
    		Security update for xen (Important)
    2021-09-02
    oval:org.opensuse.security:def:100043
    P
    		Security update for xen (Important)
    2021-09-02
    oval:org.opensuse.security:def:64757
    P
    		Security update for xen (Important)
    2021-09-02
    oval:org.opensuse.security:def:102203
    P
    		Security update for xen (Important)
    2021-09-02
    oval:org.opensuse.security:def:9784
    P
    		Security update for xen (Important)
    2021-09-02
    oval:org.opensuse.security:def:92191
    P
    		Security update for xen (Important)
    2021-09-02
    oval:org.opensuse.security:def:99139
    P
    		 (Important)
    2021-09-02
    oval:org.opensuse.security:def:69139
    P
    		Security update for xen (Important)
    2021-09-02
    oval:org.opensuse.security:def:99335
    P
    		Security update for xen (Important)
    2021-09-02
    oval:org.opensuse.security:def:107970
    P
    		Security update for xen (Important)
    2021-09-02
    oval:org.opensuse.security:def:73879
    P
    		Security update for xen (Important)
    2021-09-02
    oval:org.opensuse.security:def:92981
    P
    		Security update for xen (Important)
    2021-09-02
    oval:org.opensuse.security:def:100324
    P
    		 (Important)
    2021-09-02
    oval:org.opensuse.security:def:9030
    P
    		Security update for xen (Important)
    2021-09-02
    oval:org.opensuse.security:def:101304
    P
    		Security update for xen (Important)
    2021-09-02
    oval:org.opensuse.security:def:66916
    P
    		Security update for xen (Important)
    2021-09-02
    oval:org.opensuse.security:def:5104
    P
    		Security update for xen (Important)
    2021-09-02
    oval:org.opensuse.security:def:92385
    P
    		Security update for xen (Important)
    2021-09-02
    oval:org.opensuse.security:def:99411
    P
    		 (Important)
    2021-09-02
    oval:org.opensuse.security:def:99534
    P
    		Security update for xen (Important)
    2021-09-02
    oval:org.opensuse.security:def:60351
    P
    		Security update for xen (Important)
    2021-09-02
    oval:org.opensuse.security:def:42117
    P
    		Security update for xen (Important)
    2021-09-02
    oval:org.opensuse.security:def:108754
    P
    		Security update for xen (Important)
    2021-09-02
    oval:org.opensuse.security:def:75984
    P
    		Security update for xen (Important)
    2021-09-02
    oval:org.opensuse.security:def:100653
    P
    		 (Important)
    2021-09-02
    oval:org.opensuse.security:def:70475
    P
    		Security update for xen (Important)
    2021-09-02
    BACK
    xen xen *
    xensource xen 3.3.0
    xensource xen 4.0
    xensource xen 4.1.1
    xensource xen 4.1.2
    xensource xen 4.1
    xensource xen 3.4
    xensource xen 4.2
    xensource xen 4.0.0
    xensource xen 3.4.0
    xensource xen 4.4
    xensource xen 4.5
    xensource xen 4.6
    xensource xen 4.7
    xensource xen 4.8
    xensource xen 4.9
    xensource xen 4.10
    xensource xen 4.11
    xensource xen 4.12
    xensource xen 4.13
    xensource xen 4.14
    xensource xen 4.12.3
    xensource xen 4.12.4
    xensource xen 4.13.1