Vulnerability Name:

CVE-2022-26358 (CCN-223410)

Assigned:2022-04-05
Published:2022-04-05
Updated:2022-07-29
Summary:IOMMU: RMRR (VT-d) and unity map (AMD-Vi) handling issues T[his CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] Certain PCI devices in a system might be assigned Reserved Memory Regions (specified via Reserved Memory Region Reporting, "RMRR") for Intel VT-d or Unity Mapping ranges for AMD-Vi. These are typically used for platform tasks such as legacy USB emulation. Since the precise purpose of these regions is unknown, once a device associated with such a region is active, the mappings of these regions need to remain continuouly accessible by the device. This requirement has been violated. Subsequent DMA or interrupts from the device may have unpredictable behaviour, ranging from IOMMU faults to memory corruption.
CVSS v3 Severity:7.8 High (CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H)
6.8 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/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): High
Availibility (A): High
7.1 High (CCN CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H)
6.2 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:N/I:N/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): None
Integrity (I): None
Availibility (A): High
CVSS v2 Severity:4.4 Medium (CVSS v2 Vector: AV:L/AC:M/Au:N/C:P/I:P/A:P)
Exploitability Metrics:Access Vector (AV): Local
Access Complexity (AC): Medium
Authentication (Au): None
Impact Metrics:Confidentiality (C): Partial
Integrity (I): Partial
Availibility (A): Partial
4.9 Medium (CCN CVSS v2 Vector: AV:L/AC:L/Au:N/C:N/I:N/A:C)
Exploitability Metrics:Access Vector (AV): Local
Access Complexity (AC): Low
Athentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Complete
Vulnerability Type:CWE-noinfo
Vulnerability Consequences:Denial of Service
References:Source: MITRE
Type: CNA
CVE-2022-26358

Source: MLIST
Type: Mailing List, Patch, Third Party Advisory
[oss-security] 20220405 Xen Security Advisory 400 v2 (CVE-2022-26358,CVE-2022-26359,CVE-2022-26360,CVE-2022-26361) - IOMMU: RMRR (VT-d) and unity map (AMD-Vi) handling issues

Source: CCN
Type: Xen Security Advisory XSA-400
IOMMU: RMRR (VT-d) and unity map (AMD-Vi) handling issues

Source: CONFIRM
Type: Patch, Vendor Advisory
http://xenbits.xen.org/xsa/advisory-400.html

Source: XF
Type: UNKNOWN
xen-cve202226358-dos(223410)

Source: FEDORA
Type: Mailing List, Third Party Advisory
FEDORA-2022-64b2c02d29

Source: FEDORA
Type: Mailing List, Third Party Advisory
FEDORA-2022-dfbf7e2372

Source: DEBIAN
Type: Third Party Advisory
DSA-5117

Source: MISC
Type: Vendor Advisory
https://xenbits.xenproject.org/xsa/advisory-400.txt

Vulnerable Configuration:Configuration 1:
  • cpe:/o:xen:xen:-:*:*:*:*:*:x86:*

  • Configuration 2:
  • cpe:/o:debian:debian_linux:11.0:*:*:*:*:*:*:*

  • Configuration 3:
  • cpe:/o:fedoraproject:fedora:34:*:*:*:*:*:*:*
  • OR cpe:/o:fedoraproject:fedora:35:*:*:*:*:*:*:*

  • Configuration CCN 1:
  • cpe:/a:xensource:xen:*:*:*:*:*:*:*:*

  • * Denotes that component is vulnerable
    Oval Definitions
    Definition IDClassTitleLast Modified
    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: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:3225
    P
    libopus0-1.1-3.1 on GA media (Moderate)
    2022-06-28
    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:94855
    P
    xen-libs-4.16.0_08-150400.2.12 on GA media (Moderate)
    2022-06-22
    oval:org.opensuse.security:def:42396
    P
    Security update for xen (Important)
    2022-06-13
    oval:org.opensuse.security:def:1676
    P
    Security update for xen (Important)
    2022-06-13
    oval:org.opensuse.security:def:42298
    P
    Security update for xen (Important)
    2022-06-13
    oval:org.opensuse.security:def:913
    P
    Security update for xen (Important)
    2022-06-13
    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:42375
    P
    Security update for xen (Moderate)
    2022-05-03
    oval:org.opensuse.security:def:1662
    P
    Security update for xen (Moderate)
    2022-05-03
    oval:org.opensuse.security:def:5230
    P
    Security update for xen (Moderate)
    2022-05-03
    oval:org.opensuse.security:def:6026
    P
    Security update for xen (Moderate)
    2022-05-03
    oval:org.opensuse.security:def:42276
    P
    Security update for xen (Moderate)
    2022-05-03
    oval:org.opensuse.security:def:876
    P
    Security update for xen (Moderate)
    2022-05-03
    oval:org.opensuse.security:def:119375
    P
    Security update for xen (Important)
    2022-04-22
    oval:org.opensuse.security:def:118878
    P
    Security update for xen (Important)
    2022-04-22
    oval:org.opensuse.security:def:119560
    P
    Security update for xen (Important)
    2022-04-22
    oval:org.opensuse.security:def:42176
    P
    Security update for xen (Important)
    2022-04-22
    oval:org.opensuse.security:def:119067
    P
    Security update for xen (Important)
    2022-04-22
    oval:org.opensuse.security:def:119185
    P
    Security update for xen (Important)
    2022-04-22
    oval:org.opensuse.security:def:118688
    P
    Security update for xen (Important)
    2022-04-22
    oval:org.opensuse.security:def:127259
    P
    Security update for xen (Important)
    2022-04-20
    oval:org.opensuse.security:def:125696
    P
    Security update for xen (Important)
    2022-04-20
    oval:org.opensuse.security:def:126862
    P
    Security update for xen (Important)
    2022-04-20
    oval:org.opensuse.security:def:101617
    P
    Security update for xen (Moderate) (in QA)
    2022-04-07
    oval:org.opensuse.security:def:102242
    P
    Security update for xen (Moderate) (in QA)
    2022-04-07
    BACK
    xen xen -
    debian debian linux 11.0
    fedoraproject fedora 34
    fedoraproject fedora 35
    xensource xen *