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CVE-2021-20266

Published: Apr 30, 2021Updated: Nov 21, 2024 Sources: CVE List NVD BDUCWE-125
NVD MITRE
4.9CVSSMEDIUM
EPSS Score
1.8%
Top 25.0%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

Description

A flaw was found in RPM's hdrblobInit() in lib/header.c. This flaw allows an attacker who can modify the rpmdb to cause an out-of-bounds read. The highest threat from this vulnerability is to system availability.

CVSS Vector Breakdown

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

Weaknesses

CWE-125

Affected Products

Debian GNU/LinuxСообщество свободного программного обеспечения
On-premOS
Operating Systems / linux-distro
Astra Linux Special EditionООО «РусБИТех-Астра»
On-premOS
Operating Systems / linux-distro
ОСОН ОСнова ОnyxАО «НППКТ»
On-premOS
Operating Systems / linux-distro
RPMRed Hat Inc.
On-prem
Operating Systems / linux-distro
rpmn/a
сообщество свободного программного обеспеченияoss-projectOperating Systemsaka сообщество свободного программного обеспечения, fsf
ооо «русбитех-астра»commercialRUOperating Systemsaka rusbitech-astra
ао «нппкт»commercialRUOperating Systems
red hat inc.commercialUSOperating Systemsaka red hat
and 2 more affected products View all →

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

1 technique
Collection
View detailed technique mapping

References

https://bugzilla.redhat.com/show_bug.cgi?id=1927741
bugzilla.redhat.com
https://github.com/rpm-software-management/rpm/commit/8f4b3c3cab8922a2022b9e47c71f1ecf906077ef
github.com
https://nvd.nist.gov/vuln/detail/CVE-2021-20266
nvd.nist.gov
and 8 more references View all →

Timeline

Published
Apr 30, 2021
Last Updated
Nov 21, 2024

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