CVE-2021-30184 Information

Description

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 Vector

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Reference

https://lists.gnu.org/archive/html/bug-gnu-chess/2021-04/msg00000.html https://lists.gnu.org/archive/html/bug-gnu-chess/2021-04/msg00001.html https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/XXOTMUSBVUZNA3JMPG6BU37DQW2YOJWS/ https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/QC74RWMDLSQGV6Z3ZABNTPABB33S4YNF/ https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/SOGPLC77ZL2FACSOE5MWDS3YH3RBNQAQ/ https://security.gentoo.org/glsa/202107-28

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

REQUIRED

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

7.8