Vulnerability Name:

CVE-2022-42703 (CCN-238058)

Assigned:2022-08-29
Published:2022-08-29
Updated:2023-02-03
Summary:mm/rmap.c in the Linux kernel before 5.19.7 has a use-after-free related to leaf anon_vma double reuse.
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
5.5 Medium (REDHAT 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 (REDHAT 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
CVSS v2 Severity: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-416
Vulnerability Consequences:Denial of Service
References:Source: MITRE
Type: CNA
CVE-2022-42703

Source: cve@mitre.org
Type: Exploit, Mailing List, Third Party Advisory
cve@mitre.org

Source: CCN
Type: Google Security Research Issue 2351
Issue 2351: Linux >=3.19: anon_vma UAF through bogus merge of VMAs caused by double-reuse of leaf anon_vma because of ->degree misinterpretation

Source: cve@mitre.org
Type: Mailing List, Patch, Vendor Advisory
cve@mitre.org

Source: XF
Type: UNKNOWN
linux-kernel-cve202242703-dos(238058)

Source: cve@mitre.org
Type: Mailing List, Patch, Vendor Advisory
cve@mitre.org

Source: CCN
Type: Linux Kernel GIT Repository
mm/rmap: Fix anon_vma->degree ambiguity leading to double-reuse

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

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

Source: CCN
Type: IBM Security Bulletin 7007837 (Cloud Pak for Watson AIOps)
Multiple Vulnerabilities in CloudPak for Watson AIOPs

Source: CCN
Type: IBM Security Bulletin 7010099 (QRadar SIEM)
IBM QRadar SIEM includes components with known vulnerabilities

Source: CCN
Type: IBM Security Bulletin 7011323 (Spectrum Copy Data Management)
Vulnerabilities in Linux Kernel might affect IBM Spectrum Copy Data Management

Vulnerable Configuration:Configuration RedHat 1:
  • cpe:/o:redhat:enterprise_linux:7:*:*:*:*:*:*:*
    • Configuration RedHat 2:
  • cpe:/o:redhat:enterprise_linux:7::client:*:*:*:*:*
    • Configuration RedHat 3:
  • cpe:/o:redhat:enterprise_linux:7::computenode:*:*:*:*:*
    • Configuration RedHat 4:
  • cpe:/o:redhat:enterprise_linux:7::server:*:*:*:*:*
    • Configuration RedHat 5:
  • cpe:/o:redhat:enterprise_linux:7::workstation:*:*:*:*:*
    • Configuration RedHat 6:
  • cpe:/a:redhat:rhel_extras_rt:7:*:*:*:*:*:*:*

    • Configuration CCN 1:
  • cpe:/o:linux:linux_kernel:5.19.6:*:*:*:*:*:*:*
  • AND
  • cpe:/a:ibm:qradar_security_information_and_event_manager:7.5.0:-:*:*:*:*:*:*
  • OR cpe:/a:ibm:spectrum_copy_data_management:2.2.0.0:*:*:*:*:*:*:*

    • * 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:20231091
    P
    		RHSA-2023:1091: kernel security and bug fix update (Important)
    2023-03-07
    oval:com.redhat.rhsa:def:20231092
    P
    		RHSA-2023:1092: kernel-rt security and bug fix update (Important)
    2023-03-07
    oval:org.opensuse.security:def:51956
    P
    		Security update for the Linux Kernel (Important)
    2022-11-18
    BACK
    linux linux kernel 5.19.6
    ibm qradar security information and event manager 7.5.0 -
    ibm spectrum copy data management 2.2.0.0