Vulnerability Name:

CVE-2021-28693 (CCN-203181)

Assigned:2021-06-08
Published:2021-06-08
Updated:2021-09-21
Summary:xen/arm: Boot modules are not scrubbed The bootloader will load boot modules (e.g. kernel, initramfs...) in a temporary area before they are copied by Xen to each domain memory. To ensure sensitive data is not leaked from the modules, Xen must "scrub" them before handing the page over to the allocator. Unfortunately, it was discovered that modules will not be scrubbed on Arm.
CVSS v3 Severity:5.5 Medium (CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N)
4.8 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/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): None
4.0 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N)
3.5 Low (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N/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): Unchanged
Impact Metrics:Confidentiality (C): Low
Integrity (I): None
Availibility (A): None
CVSS v2 Severity:2.1 Low (CVSS v2 Vector: AV:L/AC:L/Au:N/C:P/I:N/A:N)
Exploitability Metrics:Access Vector (AV): Local
Access Complexity (AC): Low
Authentication (Au): None
Impact Metrics:Confidentiality (C): Partial
Integrity (I): None
Availibility (A): None
2.1 Low (CCN CVSS v2 Vector: AV:L/AC:L/Au:N/C:P/I:N/A:N)
Exploitability Metrics:Access Vector (AV): Local
Access Complexity (AC): Low
Athentication (Au): None
Impact Metrics:Confidentiality (C): Partial
Integrity (I): None
Availibility (A): None
Vulnerability Type:CWE-noinfo
Vulnerability Consequences:Obtain Information
References:Source: MITRE
Type: CNA
CVE-2021-28693

Source: CCN
Type: Xen Security Advisory XSA-372
xen/arm: Boot modules are not scrubbed

Source: XF
Type: UNKNOWN
xen-cve202128693-info-disc(203181)

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

Source: CCN
Type: WhiteSource Vulnerability Database
CVE-2021-28693

Source: MISC
Type: Vendor Advisory
https://xenbits.xenproject.org/xsa/advisory-372.txt

Vulnerable Configuration:Configuration 1:
  • cpe:/o:xen:xen:*:*:*:*:*:*:*:* (Version >= 4.12.0 and <= 4.15.0)
  • OR cpe:/o:xen:xen:4.15.0:rc1:*:*:*:*:*:*

    • Configuration CCN 1:
  • 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: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:3479
    P
    		e2fsprogs-1.43.8-3.8.1 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:3225
    P
    		libopus0-1.1-3.1 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:94591
    P
    		kernel-firmware-all-20220119-150400.2.3 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:95165
    P
    		xen-4.16.0_08-150400.2.12 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:111049
    P
    		Security update for xen (Important)
    2021-09-07
    oval:org.opensuse.security:def:99141
    P
    		 (Important)
    2021-09-03
    oval:org.opensuse.security:def:76317
    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:9030
    P
    		Security update for xen (Important)
    2021-09-02
    oval:org.opensuse.security:def:99534
    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:91996
    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:66916
    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:73690
    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:109424
    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:117484
    P
    		Security update for xen (Important)
    2021-09-02
    oval:org.opensuse.security:def:69725
    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:60351
    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:9585
    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:92191
    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:101498
    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:102758
    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:92981
    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:69924
    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:99988
    P
    		 (Important)
    2021-09-02
    oval:org.opensuse.security:def:9784
    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:5827
    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:92385
    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:102203
    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:99139
    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:99335
    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:70475
    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:100324
    P
    		 (Important)
    2021-09-02
    oval:org.opensuse.security:def:10335
    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:96068
    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:92584
    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:69139
    P
    		Security update for xen (Important)
    2021-09-02
    BACK
    xen xen *
    xen xen 4.15.0 rc1
    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