Vulnerability Name:

CVE-2021-30184 (CCN-199624)

Assigned:2021-04-06
Published:2021-04-06
Updated:2022-05-16
Summary:GNU Chess 6.2.7 allows attackers to execute arbitrary code via crafted PGN (Portable Game Notation) data. This is related to a buffer overflow in the use of a .tmp.epd temporary file in the cmd_pgnload and cmd_pgnreplay functions in frontend/cmd.cc.
CVSS v3 Severity:7.8 High (CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H)
6.9 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:U/RC:R)
Exploitability Metrics:Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): Required
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): High
Integrity (I): High
Availibility (A): High
7.8 High (CCN CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H)
6.9 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:U/RC:R)
Exploitability Metrics:Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): Required
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): High
Integrity (I): High
Availibility (A): High
CVSS v2 Severity:6.8 Medium (CVSS v2 Vector: AV:N/AC:M/Au:N/C:P/I:P/A:P)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Medium
Authentication (Au): None
Impact Metrics:Confidentiality (C): Partial
Integrity (I): Partial
Availibility (A): Partial
6.8 Medium (CCN CVSS v2 Vector: AV:L/AC:L/Au:S/C:C/I:C/A:C)
Exploitability Metrics:Access Vector (AV): Local
Access Complexity (AC): Low
Athentication (Au): Single_Instance
Impact Metrics:Confidentiality (C): Complete
Integrity (I): Complete
Availibility (A): Complete
Vulnerability Type:CWE-120
Vulnerability Consequences:Gain Access
References:Source: MITRE
Type: CNA
CVE-2021-30184

Source: XF
Type: UNKNOWN
gnuchess-cve202130184-bo(199624)

Source: FEDORA
Type: Third Party Advisory
FEDORA-2021-2c714d311f

Source: FEDORA
Type: Third Party Advisory
FEDORA-2021-ff3297913b

Source: FEDORA
Type: Third Party Advisory
FEDORA-2021-a58cb9bc7a

Source: MISC
Type: Exploit, Mailing List, Patch, Vendor Advisory
https://lists.gnu.org/archive/html/bug-gnu-chess/2021-04/msg00000.html

Source: CCN
Type: GNU Mailing List, Tue, 6 Apr 2021 08:37:36 +0200
Re: Buffer Overflows in cmd.cc

Source: MISC
Type: Exploit, Mailing List, Vendor Advisory
https://lists.gnu.org/archive/html/bug-gnu-chess/2021-04/msg00001.html

Source: GENTOO
Type: Third Party Advisory
GLSA-202107-28

Source: CCN
Type: GNU Web site
GNU Chess

Vulnerable Configuration:Configuration 1:
  • cpe:/a:gnu:chess:6.2.7:*:*:*:*:*:*:*

    • Configuration 2:
  • cpe:/o:fedoraproject:fedora:32:*:*:*:*:*:*:*
  • OR cpe:/o:fedoraproject:fedora:33:*:*:*:*:*:*:*
  • OR cpe:/o:fedoraproject:fedora:34:*:*:*:*:*:*:*

    • Configuration CCN 1:
  • cpe:/a:gnu:chess:6.2.7:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    Oval Definitions
    Definition IDClassTitleLast Modified
    oval:org.opensuse.security:def:112320
    P
    		gnuchess-6.2.9-1.2 on GA media (Moderate)
    2022-01-17
    oval:org.opensuse.security:def:105842
    P
    		Security update for MozillaFirefox (Important)
    2021-10-11
    BACK
    gnu chess 6.2.7
    fedoraproject fedora 32
    fedoraproject fedora 33
    fedoraproject fedora 34
    gnu chess 6.2.7