Vulnerability-Lookup

OPENSUSE-SU-2021:0494-1

Vulnerability from csaf_opensuse - Published: 2021-04-02 04:04 - Updated: 2026-09-20 19:23

Summary

Security update for tar

Severity

Low

Notes

Title of the patch: Security update for tar

Description of the patch: This update for tar fixes the following issues: CVE-2021-20193: Memory leak in read_header() in list.c (bsc#1181131) This update was imported from the SUSE:SLE-15:Update update project.

Patchnames: openSUSE-2021-494

CVE-2021-20193

3.3 (Low)


                
                  CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L

Affected products

Recommended 9 products

Product	Version	Remediation
Unresolved product id: openSUSE Leap 15.2:tar-0:1.30-lp152.4.3.1.i586	—	Vendor Fix
Unresolved product id: openSUSE Leap 15.2:tar-0:1.30-lp152.4.3.1.x86_64	—	Vendor Fix
Unresolved product id: openSUSE Leap 15.2:tar-backup-scripts-0:1.30-lp152.4.3.1.noarch	—	Vendor Fix
Unresolved product id: openSUSE Leap 15.2:tar-doc-0:1.30-lp152.4.3.1.noarch	—	Vendor Fix
Unresolved product id: openSUSE Leap 15.2:tar-lang-0:1.30-lp152.4.3.1.noarch	—	Vendor Fix
Unresolved product id: openSUSE Leap 15.2:tar-rmt-0:1.30-lp152.4.3.1.i586	—	Vendor Fix
Unresolved product id: openSUSE Leap 15.2:tar-rmt-0:1.30-lp152.4.3.1.x86_64	—	Vendor Fix
Unresolved product id: openSUSE Leap 15.2:tar-tests-0:1.30-lp152.4.3.1.i586	—	Vendor Fix
Unresolved product id: openSUSE Leap 15.2:tar-tests-0:1.30-lp152.4.3.1.x86_64	—	Vendor Fix

Threats

Impact moderate

References

8 references

URL	Category
https://www.suse.com/support/security/rating/	external
https://ftp.suse.com/pub/projects/security/csaf/o…	self
https://lists.opensuse.org/archives/list/security…	self
https://lists.opensuse.org/archives/list/security…	self
https://bugzilla.suse.com/1181131	self
https://www.suse.com/security/cve/CVE-2021-20193/	self
https://www.suse.com/security/cve/CVE-2021-20193	external
https://bugzilla.suse.com/1181131	external

JSON

To clipboard

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}

CVE-2021-20193 (GCVE-0-2021-20193)

Vulnerability from cvelistv5 – Published: 2021-03-26 16:41 – Updated: 2026-10-14 10:04

Summary

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 from this vulnerability is to system availability.

Severity

No CVSS data available.

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-10-08 21:00 UTC

CWE

CWE-401 - >CWE-125

Assigner

redhat CNA under the redhat root

CNA scorecard B 81/100 over 1014 records in the last 180 days details

References

5 references

URL	Tags
https://bugzilla.redhat.com/show_bug.cgi?id=1917565	x_refsource_MISC
https://savannah.gnu.org/bugs/?59897	x_refsource_MISC
https://git.savannah.gnu.org/cgit/tar.git/commit/…	x_refsource_MISC
https://security.gentoo.org/glsa/202105-29	vendor-advisoryx_refsource_GENTOO
https://cert-portal.siemens.com/productcert/html/…

Impacted products

4 products

Vendor	Product	Version
n/a	tar	Affected: 1.33 and earlier
Siemens	SIMATIC S7-1500 CPU 1518-4 PN/DP MFP	Affected: V3.1.0 , < V3.1.5 (custom)
Siemens	SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP	Affected: V3.1.0 , < V3.1.5 (custom)
Siemens	SIPLUS S7-1500 CPU 1518-4 PN/DP MFP	Affected: V3.1.0 , < V3.1.5 (custom)

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Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Vulnerability timeline

Sightings and recorded dates, grouped by day · UTC

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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

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