Vulnerability Name:

CVE-2021-38988 (CCN-212950)

Assigned:2021-08-16
Published:2022-03-04
Updated:2022-07-12
Summary:IBM AIX 7.1, 7.2, 7.3, and VIOS 3.1 could allow a non-privileged local user to exploit a vulnerability in the AIX kernel to cause a denial of service. IBM X-Force ID: 212950.
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:4.9 Medium (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
Authentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Complete
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-2021-38988

Source: XF
Type: UNKNOWN
ibm-aix-cve202138988-dos(212950)

Source: XF
Type: VDB Entry, Vendor Advisory
ibm-aix-cve202138988-dos (212950)

Source: CCN
Type: IBM Security Bulletin 6561281 (AIX)
Vulnerability in the AIX kernel (CVE-2021-38988)

Source: CONFIRM
Type: Mitigation, Patch, Vendor Advisory
https://www.ibm.com/support/pages/node/6561281

Vulnerable Configuration:Configuration 1:
  • cpe:/o:ibm:aix:7.3.0.0:*:*:*:*:*:*:*
  • OR cpe:/a:ibm:vios:*:*:*:*:*:*:*:* (Version >= 3.1.3 and < 3.1.3.20)
  • OR cpe:/a:ibm:vios:*:*:*:*:*:*:*:* (Version >= 3.1.2 and < 3.1.2.40)
  • OR cpe:/o:ibm:aix:7.2.5.0:*:*:*:*:*:*:*
  • OR cpe:/a:ibm:vios:*:*:*:*:*:*:*:* (Version >= 3.1.1 and < 3.1.1.60)
  • OR cpe:/o:ibm:aix:7.2.4.0:*:*:*:*:*:*:*
  • OR cpe:/o:ibm:aix:*:*:*:*:*:*:*:* (Version >= 7.1.5.0 and <= 7.1.5.32)

    • Configuration CCN 1:
  • cpe:/o:ibm:aix:7.1:*:*:*:*:*:*:*
  • OR cpe:/o:ibm:aix:7.2:*:*:*:*:*:*:*
  • OR cpe:/a:ibm:vios:3.1:*:*:*:*:*:*:*
  • OR cpe:/o:ibm:aix:7.3:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    BACK
    ibm aix 7.3.0.0
    ibm vios *
    ibm vios *
    ibm aix 7.2.5.0
    ibm vios *
    ibm aix 7.2.4.0
    ibm aix *
    ibm aix 7.1
    ibm aix 7.2
    ibm vios 3.1
    ibm aix 7.3