CVE-2021-3826

CVSS V2 None CVSS V3 High 7.5
Description
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.
Overview
  • CVE ID
  • CVE-2021-3826
  • Assigner
  • secalert@redhat.com
  • Vulnerability Status
  • Modified
  • Published Version
  • 2022-09-01T21:15:08
  • Last Modified Date
  • 2023-02-12T23:42:49
Weakness Enumerations
CWE URL
CWE-119 http://cwe.mitre.org/data/definitions/119.html
CWE-787 http://cwe.mitre.org/data/definitions/787.html
CPE Configuration (Product)
CPE Vulnerable Operator Version Start Version End
cpe:2.3:a:gnu:gcc:11.2:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:* 1 OR
CVSS Version 3
  • Version
  • 3.1
  • Vector String
  • CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  • Attack Vector
  • NETWORK
  • Attack Compatibility
  • LOW
  • Privileges Required
  • NONE
  • User Interaction
  • NONE
  • Scope
  • UNCHANGED
  • Confidentiality Impact
  • NONE
  • Availability Impact
  • HIGH
  • Base Score
  • 7.5
  • Base Severity
  • HIGH
  • Exploitability Score
  • 3.9
  • Impact Score
  • 3.6
References
Reference URL Reference Tags
https://gcc.gnu.org/git/?p=gcc.git;a=commit;h=5481040197402be6dfee265bd2ff5a4c88e30505 Mailing List Patch Vendor Advisory
https://gcc.gnu.org/pipermail/gcc-patches/2021-September/579987 Mailing List Patch Vendor Advisory
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/4MYLS3VR4OPL5ECRWOR4ZHMGXUSCJFZY/
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/6AKZ2DTS3ATVN5PANNVLKLE5OP4OF25Q/
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/7MTEHT3G6YKJ7F7MSGWYSI4UM3XBAYXZ/
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/AXFC74WRZ2Q7F2TSUKPYNIL7ZPBWYI6L/ Mailing List Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/H424YXGW7OKXS2NCAP35OP6Y4P4AW6VG/
Sources
Source Name Source URL
NIST https://nvd.nist.gov/vuln/detail/CVE-2021-3826
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-3826
History
Created Old Value New Value Data Type Notes
2022-09-01 22:00:08 Added to TrackCVE
2022-12-12 22:14:01 2022-12-12T21:14:35 CVE Modified Date updated
2022-12-12 22:14:01 Undergoing Analysis Analyzed Vulnerability Status updated
2023-02-13 01:14:00 2023-02-12T23:42:49 CVE Modified Date updated
2023-02-13 01:14:00 Analyzed Modified Vulnerability Status updated
2023-02-13 01:14:01 Weakness Enumeration update