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CVE-2021-3826

Published: Sep 1, 2022Updated: Nov 21, 2024 Sources: CVE List NVD csafCWE-119
NVD MITRE
6.5CVSSMEDIUM
EPSS Score
1.1%
Top 40.2%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

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.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:RS:UC:NI:NA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:RUser Interaction
Required
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:NIntegrity
None
A:HAvailability
High
Open in CVSS calculator →

Weaknesses

CWE-119CWE-787

Affected Products

gccgnuOSS Libraries
fedorafedoraproject
On-premOS
Operating Systems / linux-distro
gccn/a
gnuoss-projectUSOSS Librariesaka g. nu
fedoraprojectoss-projectUSOperating Systemsaka fedora project

Attack Graph

Products CVE Techniques Tactics

Click technique nodes to view MITRE ATT&CK details. Scroll to zoom, drag to pan.

Exploitability

Official Patch Available

MITRE ATT&CK

2 techniques
Initial Access
Privilege Escalation
View detailed technique mapping

References

https://gcc.gnu.org/git/?p=gcc.git%3Ba=commit%3Bh=5481040197402be6dfee265bd2ff5a4c88e30505
gcc.gnu.org
https://gcc.gnu.org/pipermail/gcc-patches/2021-September/579987
gcc.gnu.org
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4MYLS3VR4OPL5ECRWOR4ZHMGXUSCJFZY/
lists.fedoraproject.org
and 14 more references View all →

Timeline

Published
Sep 1, 2022
Last Updated
Nov 21, 2024

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