Vulnerability Name:

CVE-2021-20491 (CCN-197792)

Assigned:2020-12-17
Published:2021-04-15
Updated:2021-04-21
Summary:IBM Spectrum Protect Server 7.1 and 8.1 is subject to a stack-based buffer overflow caused by improper bounds checking during the parsing of commands. By issuing such a command with an improper parameter, an authorized administrator could overflow a buffer and cause the server to crash. IBM X-Force ID: 197792.
CVSS v3 Severity:4.4 Medium (CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H)
3.9 Low (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:H/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): High
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): High
4.4 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H)
3.9 Low (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:H/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): High
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
4.6 Medium (CCN CVSS v2 Vector: AV:L/AC:L/Au:S/C:N/I:N/A:C)
Exploitability Metrics:Access Vector (AV): Local
Access Complexity (AC): Low
Athentication (Au): Single_Instance
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Complete
Vulnerability Type:CWE-787
Vulnerability Consequences:Denial of Service
References:Source: MITRE
Type: CNA
CVE-2021-20491

Source: XF
Type: UNKNOWN
ibm-spectrum-cve202120491-dos(197792)

Source: XF
Type: VDB Entry, Vendor Advisory
ibm-spectrum-cve202120491-dos (197792)

Source: CCN
Type: IBM Security Bulletin 6442993 (Spectrum Protect Server)
Stack-based Buffer Overflow in IBM Spectrum Protect Server (CVE-2021-20491)

Source: CONFIRM
Type: Patch, Vendor Advisory
https://www.ibm.com/support/pages/node/6442993

Vulnerable Configuration:Configuration 1:
  • cpe:/a:ibm:spectrum_protect:*:*:*:*:*:*:*:* (Version >= 7.1.0.000 and < 7.1.13)
  • OR cpe:/a:ibm:spectrum_protect:*:*:*:*:*:*:*:* (Version >= 8.1.0.000 and <= 8.1.10.100)
  • OR cpe:/a:ibm:spectrum_protect:8.1.11.000:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    BACK
    ibm spectrum protect *
    ibm spectrum protect *
    ibm spectrum protect 8.1.11.000