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CVE-2021-20193

A flaw was found in the src/list.c of tar 1.33 and earlier. This flaw allows an attacker who can submit a crafted input file to tar to cause uncontrolled consumption of memory. The highest threat f...

Published: Mar 26, 2021Updated: May 5, 2025 Sources: CVE List NVD BDU csafCWE-401
3.3LOW
NVD MITRE
EPSS Score
1.1%
Top 38.8%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available
Self-Check
OpenVAS

Description

Multiple vulnerabilities have been identified in the additional GNU/Linux subsystem of the firmware version >= V3.1.0 and < V3.1.5 for the SIMATIC S7-1500 CPU 1518(F)-4 PN/DP MFP (incl. SIPLUS variant). These GNU/Linux vulnerabilities have been externally identified. Siemens has released new versions for the affected products and recommends to update to the latest versions. Note: This SSA advises vulnerabilities for firmware version V3.1 only; for versions < V3.1 refer to Siemens Security Bulletin SSB-439005 ( https://cert-portal.siemens.com/productcert/html/ssb-439005.html).

No summary for this CVE yet.

CVSS Vector Breakdown

AV:LAC:LPR:NUI:RS:UC:NI:NA:L
Exploitability
AV:LAttack Vector
Local
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:RUser Interaction
Required
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:NIntegrity
None
A:LAvailability
Low
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Weaknesses

CWE-401CWE-125

Affected Products

Novell Inc.
commercial·US
SUSE Linux Enterprise Server for SAP ApplicationsOn-premOS
Operating Systems / linux-distro
OpenSUSE LeapOn-premOS
Operating Systems / linux-distro
SUSE MicroOSOn-prem
Operating Systems / linux-distro
ООО «Ред Софт»
commercial·RUaka red soft
РЕД ОСOn-premOS
Operating Systems / linux-distro
The GNU Project
oss-project·USaka gnu
GNU TarOn-prem
Operating Systems / unix-bsd
gnu
oss-project·USaka g. nu
tar
OSS Libraries
and 2 more affected products View all →

Exploitability

Official Patch Available
Is your org exposed to CVE-2021-20193?We can run the check for you — a free external exposure review, no install. Check my exposure

Attack Graph

Products CVE Techniques Tactics

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MITRE ATT&CK

1 technique
Collection
View detailed technique mapping

References

https://git.savannah.gnu.org/cgit/tar.git/commit/?id=d9d4435692150fa8ff68e1b1a473d187cc3fd777&#13;
git.savannah.gnu.org
https://savannah.gnu.org/bugs/?59897&#13;
savannah.gnu.org
https://redos.red-soft.ru/updatesec/&#13;
redos.red-soft.ru
and 19 more references View all →
News mentions
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