CVE-2021-3826

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2021-3826
Heap/stack buffer overflow in the dlang_lname function in d-demangle.c in libiberty allows attackers to potentially cause a denial of service (segmentation fault and crash) via a crafted mangled symbol.

6.5 /10

CVSS v3 : MEDIUM

V3 Legend

Vector :

Exploitability : 2.8 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://gcc.gnu.org/git/?p=gcc.git%3Ba=commit%3Bh=5481040197402be6dfee265bd2ff5a4c88e30505 Broken Link
https://gcc.gnu.org/pipermail/gcc-patches/2021-September/579987 Mailing List Patch Vendor Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4MYLS3VR4OPL5ECRWOR4ZHMGXUSCJFZY/ Mailing List Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6AKZ2DTS3ATVN5PANNVLKLE5OP4OF25Q/ Mailing List Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/7MTEHT3G6YKJ7F7MSGWYSI4UM3XBAYXZ/ Mailing List Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/AXFC74WRZ2Q7F2TSUKPYNIL7ZPBWYI6L/ Mailing List Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/H424YXGW7OKXS2NCAP35OP6Y4P4AW6VG/ Mailing List Third Party Advisory
Configurations

Configuration 1 (hide)

cpe:2.3:a:gnu:gcc:11.2:*:*:*:*:*:*:*

Configuration 2 (hide)

OR cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:36:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:37:*:*:*:*:*:*:*
History

22 Jan 2024, 15:01

Type Values Removed Values Added
CVSS v2 : unknown
v3 : 7.5 		v2 : unknown
v3 : 6.5
References () https://gcc.gnu.org/git/?p=gcc.git%3Ba=commit%3Bh=5481040197402be6dfee265bd2ff5a4c88e30505 - () https://gcc.gnu.org/git/?p=gcc.git%3Ba=commit%3Bh=5481040197402be6dfee265bd2ff5a4c88e30505 - Broken Link
References () https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4MYLS3VR4OPL5ECRWOR4ZHMGXUSCJFZY/ - () https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4MYLS3VR4OPL5ECRWOR4ZHMGXUSCJFZY/ - Mailing List, Third Party Advisory
References () https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6AKZ2DTS3ATVN5PANNVLKLE5OP4OF25Q/ - () https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6AKZ2DTS3ATVN5PANNVLKLE5OP4OF25Q/ - Mailing List, Third Party Advisory
References () https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/7MTEHT3G6YKJ7F7MSGWYSI4UM3XBAYXZ/ - () https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/7MTEHT3G6YKJ7F7MSGWYSI4UM3XBAYXZ/ - Mailing List, Third Party Advisory
References () https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/AXFC74WRZ2Q7F2TSUKPYNIL7ZPBWYI6L/ - () https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/AXFC74WRZ2Q7F2TSUKPYNIL7ZPBWYI6L/ - Mailing List, Third Party Advisory
References () https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/H424YXGW7OKXS2NCAP35OP6Y4P4AW6VG/ - () https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/H424YXGW7OKXS2NCAP35OP6Y4P4AW6VG/ - Mailing List, Third Party Advisory

12 Feb 2023, 23:42

Type Values Removed Values Added
References
  • {'url': 'https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/AXFC74WRZ2Q7F2TSUKPYNIL7ZPBWYI6L/', 'name': 'FEDORA-2022-8e1df11a7a', 'tags': ['Mailing List', 'Third Party Advisory'], 'refsource': 'FEDORA'}
  • {'url': 'https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/4MYLS3VR4OPL5ECRWOR4ZHMGXUSCJFZY/', 'name': 'FEDORA-2022-affcf9eea6', 'tags': ['Mailing List', 'Third Party Advisory'], 'refsource': 'FEDORA'}
  • {'url': 'https://gcc.gnu.org/git/?p=gcc.git;a=commit;h=5481040197402be6dfee265bd2ff5a4c88e30505', 'name': 'https://gcc.gnu.org/git/?p=gcc.git;a=commit;h=5481040197402be6dfee265bd2ff5a4c88e30505', 'tags': ['Mailing List', 'Patch', 'Vendor Advisory'], 'refsource': 'MISC'}
  • {'url': 'https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/6AKZ2DTS3ATVN5PANNVLKLE5OP4OF25Q/', 'name': 'FEDORA-2022-19538a3732', 'tags': ['Mailing List', 'Third Party Advisory'], 'refsource': 'FEDORA'}
  • {'url': 'https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/7MTEHT3G6YKJ7F7MSGWYSI4UM3XBAYXZ/', 'name': 'FEDORA-2022-667ee398b1', 'tags': ['Mailing List', 'Third Party Advisory'], 'refsource': 'FEDORA'}
  • {'url': 'https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/H424YXGW7OKXS2NCAP35OP6Y4P4AW6VG/', 'name': 'FEDORA-2022-c9a1fd5370', 'tags': ['Mailing List', 'Third Party Advisory'], 'refsource': 'FEDORA'}
  • (MISC) https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/7MTEHT3G6YKJ7F7MSGWYSI4UM3XBAYXZ/ -
  • (MISC) https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4MYLS3VR4OPL5ECRWOR4ZHMGXUSCJFZY/ -
  • (MISC) https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6AKZ2DTS3ATVN5PANNVLKLE5OP4OF25Q/ -
  • (MISC) https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/AXFC74WRZ2Q7F2TSUKPYNIL7ZPBWYI6L/ -
  • (MISC) https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/H424YXGW7OKXS2NCAP35OP6Y4P4AW6VG/ -
  • (MISC) https://gcc.gnu.org/git/?p=gcc.git%3Ba=commit%3Bh=5481040197402be6dfee265bd2ff5a4c88e30505 -

12 Dec 2022, 21:14

Type Values Removed Values Added
References (FEDORA) https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/4MYLS3VR4OPL5ECRWOR4ZHMGXUSCJFZY/ - (FEDORA) https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/4MYLS3VR4OPL5ECRWOR4ZHMGXUSCJFZY/ - Mailing List, Third Party Advisory
References (FEDORA) https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/6AKZ2DTS3ATVN5PANNVLKLE5OP4OF25Q/ - (FEDORA) https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/6AKZ2DTS3ATVN5PANNVLKLE5OP4OF25Q/ - Mailing List, Third Party Advisory
References (FEDORA) https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/7MTEHT3G6YKJ7F7MSGWYSI4UM3XBAYXZ/ - (FEDORA) https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/7MTEHT3G6YKJ7F7MSGWYSI4UM3XBAYXZ/ - Mailing List, Third Party Advisory
References (FEDORA) https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/H424YXGW7OKXS2NCAP35OP6Y4P4AW6VG/ - (FEDORA) https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/H424YXGW7OKXS2NCAP35OP6Y4P4AW6VG/ - Mailing List, Third Party Advisory
CPE cpe:2.3:o:fedoraproject:fedora:37:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:36:*:*:*:*:*:*:*

14 Nov 2022, 15:15

Type Values Removed Values Added
References
  • (FEDORA) https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/7MTEHT3G6YKJ7F7MSGWYSI4UM3XBAYXZ/ -

10 Nov 2022, 19:15

Type Values Removed Values Added
References
  • (FEDORA) https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/H424YXGW7OKXS2NCAP35OP6Y4P4AW6VG/ -

07 Nov 2022, 23:15

Type Values Removed Values Added
CWE CWE-787 CWE-119
References
  • (FEDORA) https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/4MYLS3VR4OPL5ECRWOR4ZHMGXUSCJFZY/ -
  • (FEDORA) https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/6AKZ2DTS3ATVN5PANNVLKLE5OP4OF25Q/ -

29 Sep 2022, 15:54

Type Values Removed Values Added
First Time Fedoraproject
Fedoraproject fedora
References (FEDORA) https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/AXFC74WRZ2Q7F2TSUKPYNIL7ZPBWYI6L/ - (FEDORA) https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/AXFC74WRZ2Q7F2TSUKPYNIL7ZPBWYI6L/ - Mailing List, Third Party Advisory
CPE cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:*

08 Sep 2022, 13:15

Type Values Removed Values Added
References
  • (FEDORA) https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/AXFC74WRZ2Q7F2TSUKPYNIL7ZPBWYI6L/ -

07 Sep 2022, 19:44

Type Values Removed Values Added
First Time Gnu
Gnu gcc
CPE cpe:2.3:a:gnu:gcc:11.2:*:*:*:*:*:*:*
CWE CWE-787
CVSS v2 : unknown
v3 : unknown 		v2 : unknown
v3 : 7.5
References (MISC) https://gcc.gnu.org/git/?p=gcc.git;a=commit;h=5481040197402be6dfee265bd2ff5a4c88e30505 - (MISC) https://gcc.gnu.org/git/?p=gcc.git;a=commit;h=5481040197402be6dfee265bd2ff5a4c88e30505 - Mailing List, Patch, Vendor Advisory
References (MISC) https://gcc.gnu.org/pipermail/gcc-patches/2021-September/579987 - (MISC) https://gcc.gnu.org/pipermail/gcc-patches/2021-September/579987 - Mailing List, Patch, Vendor Advisory

01 Sep 2022, 21:15

Type Values Removed Values Added
New CVE
Information

Published : 2022-09-01 21:15

Updated : 2024-01-22 15:01

NVD link : CVE-2021-3826

Mitre link : CVE-2021-3826

CVE.ORG link : CVE-2021-3826

JSON object : View

Products Affected

gnu

  • gcc

fedoraproject

  • fedora
CWE
CWE-119

Improper Restriction of Operations within the Bounds of a Memory Buffer

CWE-787

Out-of-bounds Write