Vulnerability Name:

CVE-2020-36516 (CCN-222180)

Assigned:2020-11-02
Published:2020-11-02
Updated:2023-01-05
Summary:An issue was discovered in the Linux kernel through 5.16.11. The mixed IPID assignment method with the hash-based IPID assignment policy allows an off-path attacker to inject data into a victim's TCP session or terminate that session.
CVSS v3 Severity:5.9 Medium (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:L)
5.2 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:L/E:U/RL:U/RC:R)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): High
Privileges Required (PR): Low
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): None
Integrity (I): High
Availibility (A): Low
5.3 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N)
4.7 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N/E:U/RL:U/RC:R)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): None
Integrity (I): Low
Availibility (A): None
5.9 Medium (REDHAT CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:L)
5.2 Medium (REDHAT Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:L/E:U/RL:U/RC:R)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): High
Privileges Required (PR): Low
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): None
Integrity (I): High
Availibility (A): Low
CVSS v2 Severity:4.9 Medium (CVSS v2 Vector: AV:N/AC:M/Au:S/C:N/I:P/A:P)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Medium
Authentication (Au): Single_Instance
Impact Metrics:Confidentiality (C): None
Integrity (I): Partial
Availibility (A): Partial
5.0 Medium (CCN CVSS v2 Vector: AV:N/AC:L/Au:N/C:N/I:P/A:N)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Athentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): Partial
Availibility (A): None
Vulnerability Type:CWE-290
Vulnerability Consequences:Bypass Security
References:Source: MITRE
Type: CNA
CVE-2020-36516

Source: CCN
Type: Digital Library Web site
Off-Path TCP Exploits of the Mixed IPID Assignment

Source: cve@mitre.org
Type: Technical Description, Third Party Advisory
cve@mitre.org

Source: XF
Type: UNKNOWN
linux-kernel-cve202036516-sec-bypass(222180)

Source: cve@mitre.org
Type: Third Party Advisory
cve@mitre.org

Source: CCN
Type: Linux Kernel Web site
The Linux Kernel Archives

Source: CCN
Type: WhiteSource Vulnerability Database
CVE-2020-36516

Vulnerable Configuration:Configuration RedHat 1:
  • cpe:/a:redhat:enterprise_linux:8:*:*:*:*:*:*:*
    • Configuration RedHat 2:
  • cpe:/a:redhat:enterprise_linux:8::nfv:*:*:*:*:*
    • Configuration RedHat 3:
  • cpe:/a:redhat:enterprise_linux:8::realtime:*:*:*:*:*
    • Configuration RedHat 4:
  • cpe:/a:redhat:enterprise_linux:8::crb:*:*:*:*:*
    • Configuration RedHat 5:
  • cpe:/o:redhat:enterprise_linux:8:*:*:*:*:*:*:*
    • Configuration RedHat 6:
  • cpe:/o:redhat:enterprise_linux:8::baseos:*:*:*:*:*
    • Configuration RedHat 7:
  • cpe:/a:redhat:enterprise_linux:9:*:*:*:*:*:*:*
    • Configuration RedHat 8:
  • cpe:/a:redhat:enterprise_linux:9::nfv:*:*:*:*:*
    • Configuration RedHat 9:
  • cpe:/a:redhat:enterprise_linux:9::realtime:*:*:*:*:*
    • Configuration RedHat 10:
  • cpe:/a:redhat:enterprise_linux:9::appstream:*:*:*:*:*
    • Configuration RedHat 11:
  • cpe:/a:redhat:enterprise_linux:9::crb:*:*:*:*:*
    • Configuration RedHat 12:
  • cpe:/o:redhat:enterprise_linux:9:*:*:*:*:*:*:*
    • Configuration RedHat 13:
  • cpe:/o:redhat:enterprise_linux:9::baseos:*:*:*:*:*

    • Configuration CCN 1:
  • cpe:/o:linux:linux_kernel:5.16.11:*:*:*:*:*:*:*

    • * 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:com.redhat.rhsa:def:20227933
    P
    		RHSA-2022:7933: kernel-rt security and bug fix update (Moderate)
    2022-11-15
    oval:com.redhat.rhsa:def:20228267
    P
    		RHSA-2022:8267: kernel security, bug fix, and enhancement update (Moderate)
    2022-11-15
    oval:com.redhat.rhsa:def:20227444
    P
    		RHSA-2022:7444: kernel-rt security and bug fix update (Moderate)
    2022-11-08
    oval:com.redhat.rhsa:def:20227683
    P
    		RHSA-2022:7683: kernel security, bug fix, and enhancement update (Moderate)
    2022-11-08
    oval:org.opensuse.security:def:783
    P
    		Security update for the Linux Kernel (Important)
    2022-09-26
    oval:org.opensuse.security:def:762
    P
    		Security update for the Linux Kernel (Important)
    2022-09-16
    oval:org.opensuse.security:def:764
    P
    		Security update for the Linux Kernel (Important)
    2022-09-16
    oval:org.opensuse.security:def:4739
    P
    		Security update for the Linux Kernel (Important)
    2022-08-26
    oval:org.opensuse.security:def:707
    P
    		Security update for the Linux Kernel (Important)
    2022-08-23
    BACK
    linux linux kernel 5.16.11