Vulnerability Name:

CVE-2020-27194 (CCN-189932)

Assigned:2020-10-16
Published:2020-10-16
Updated:2020-10-30
Summary:An issue was discovered in the Linux kernel before 5.8.15. scalar32_min_max_or in kernel/bpf/verifier.c mishandles bounds tracking during use of 64-bit values, aka CID-5b9fbeb75b6a.
CVSS v3 Severity:5.5 Medium (CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H)
4.8 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/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): Low
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): High
6.2 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)
5.4 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/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): Unchanged
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): High
CVSS v2 Severity:2.1 Low (CVSS v2 Vector: AV:L/AC:L/Au:N/C:N/I:N/A:P)
Exploitability Metrics:Access Vector (AV): Local
Access Complexity (AC): Low
Authentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): None
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-119
Vulnerability Consequences:Denial of Service
References:Source: MITRE
Type: CNA
CVE-2020-27194

Source: MISC
Type: Release Notes, Vendor Advisory
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.8.15

Source: XF
Type: UNKNOWN
linux-kernel-cve202027194-dos(189932)

Source: CCN
Type: Linux Kernel GIT Repository
bpf: Fix scalar32_min_max_or bounds tracking

Source: MISC
Type: Patch, Third Party Advisory
https://github.com/torvalds/linux/commit/5b9fbeb75b6a98955f628e205ac26689bcb1383e

Source: CCN
Type: WhiteSource Vulnerability Database
CVE-2020-27194

Vulnerable Configuration:Configuration 1:
  • cpe:/o:linux:linux_kernel:*:*:*:*:*:*:*:* (Version < 5.8.15)

    • Configuration CCN 1:
  • cpe:/o:linux:linux_kernel:5.8:-:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    Oval Definitions
    Definition IDClassTitleLast Modified
    oval:org.opensuse.security:def:8029
    P
    		kernel-docs-5.14.21-150500.53.2 on GA media (Moderate)
    2023-06-20
    oval:org.opensuse.security:def:8090
    P
    		reiserfs-kmp-default-5.14.21-150500.53.2 on GA media (Moderate)
    2023-06-12
    oval:org.opensuse.security:def:7539
    P
    		kernel-64kb-5.14.21-150500.53.2 on GA media (Moderate)
    2023-06-12
    oval:org.opensuse.security:def:665
    P
    		Security update for samba (Moderate)
    2022-08-03
    oval:org.opensuse.security:def:3567
    P
    		libXtst6-1.2.2-7.1 on GA media (Moderate)
    2022-06-28
    oval:org.opensuse.security:def:3398
    P
    		wpa_supplicant-2.6-15.10.1 on GA media (Moderate)
    2022-06-28
    oval:org.opensuse.security:def:3448
    P
    		busybox-1.21.1-3.3 on GA media (Moderate)
    2022-06-28
    oval:org.opensuse.security:def:3453
    P
    		clamav-0.101.3-1.19 on GA media (Moderate)
    2022-06-28
    oval:org.opensuse.security:def:95078
    P
    		reiserfs-kmp-default-5.14.21-150400.22.1 on GA media (Moderate)
    2022-06-22
    oval:org.opensuse.security:def:2960
    P
    		kernel-64kb-5.14.21-150400.22.1 on GA media (Moderate)
    2022-06-22
    oval:org.opensuse.security:def:95083
    P
    		kernel-azure-5.14.21-150400.12.1 on GA media (Moderate)
    2022-06-22
    oval:org.opensuse.security:def:94590
    P
    		kernel-64kb-5.14.21-150400.22.1 on GA media (Moderate)
    2022-06-22
    oval:org.opensuse.security:def:95197
    P
    		kernel-default-extra-5.14.21-150400.22.1 on GA media (Moderate)
    2022-06-22
    oval:org.opensuse.security:def:95028
    P
    		kernel-docs-5.14.21-150400.22.1 on GA media (Moderate)
    2022-06-22
    oval:org.opensuse.security:def:89
    P
    		kernel-64kb-5.3.18-57.3 on GA media (Moderate)
    2022-06-13
    oval:org.opensuse.security:def:63102
    P
    		reiserfs-kmp-default-5.3.18-57.3 on GA media (Moderate)
    2021-08-10
    oval:org.opensuse.security:def:63125
    P
    		kernel-azure-5.3.18-36.1 on GA media (Moderate)
    2021-08-10
    oval:org.opensuse.security:def:2013
    P
    		reiserfs-kmp-default-5.3.18-57.3 on GA media (Moderate)
    2021-08-10
    oval:org.opensuse.security:def:2036
    P
    		kernel-azure-5.3.18-36.1 on GA media (Moderate)
    2021-08-10
    oval:org.opensuse.security:def:63019
    P
    		kernel-docs-5.3.18-57.3 on GA media (Moderate)
    2021-08-09
    oval:org.opensuse.security:def:1018
    P
    		kernel-64kb-5.3.18-57.3 on GA media (Moderate)
    2021-08-09
    oval:org.opensuse.security:def:101277
    P
    		kernel-docs-5.3.18-57.3 on GA media (Moderate)
    2021-08-09
    oval:org.opensuse.security:def:71848
    P
    		kernel-64kb-5.3.18-57.3 on GA media (Moderate)
    2021-08-09
    oval:org.opensuse.security:def:1930
    P
    		kernel-docs-5.3.18-57.3 on GA media (Moderate)
    2021-08-09
    oval:org.opensuse.security:def:72738
    P
    		kernel-docs-5.3.18-57.3 on GA media (Moderate)
    2021-08-09
    oval:org.opensuse.security:def:62107
    P
    		kernel-64kb-5.3.18-57.3 on GA media (Moderate)
    2021-08-09
    oval:org.opensuse.security:def:100865
    P
    		kernel-64kb-5.3.18-57.3 on GA media (Moderate)
    2021-08-09
    BACK
    linux linux kernel *
    linux linux kernel 5.8.0 -