Vulnerability-Lookup

CVE-2019-9923 (GCVE-0-2019-9923)

Vulnerability from cvelistv5 – Published: 2019-03-22 07:06 – Updated: 2026-10-14 06:49

Summary

pax_decode_header in sparse.c in GNU Tar before 1.32 had a NULL pointer dereference when parsing certain archives that have malformed extended headers.

Severity

7.5 (High)


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

SSVC

Exploitation: poc Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2025-08-06 20:59 UTC

CWE

n/a
CWE-476 - NULL Pointer Dereference

Assigner

mitre CNA under the mitre root

CNA scorecard E 28/100 over 2326 records in the last 180 days details

References

7 references

URL	Tags
https://bugs.launchpad.net/ubuntu/+source/tar/+bu…	x_refsource_MISC
http://git.savannah.gnu.org/cgit/tar.git/commit/?…	x_refsource_MISC
http://savannah.gnu.org/bugs/?55369	x_refsource_MISC
http://lists.opensuse.org/opensuse-security-annou…	vendor-advisoryx_refsource_SUSE
https://lists.apache.org/thread.html/rf4c02775860…	mailing-listx_refsource_MLIST
https://lists.apache.org/thread.html/r58af02e294b…	mailing-listx_refsource_MLIST
https://cert-portal.siemens.com/productcert/html/…

Impacted products

3 products

Vendor	Product	Version	CPE status
Siemens	SIMATIC S7-1500 CPU 1518-4 PN/DP MFP	Affected: V3.1.0 , < V3.1.5 (custom)	guessed
Siemens	SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP	Affected: V3.1.0 , < V3.1.5 (custom)	guessed
Siemens	SIPLUS S7-1500 CPU 1518-4 PN/DP MFP	Affected: V3.1.0 , < V3.1.5 (custom)	guessed

Show details on NVD website

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To clipboard

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SSA-398330

Vulnerability from csaf_siemens - Published: 2023-12-12 00:00 - Updated: 2026-10-13 00:00

Summary

SSA-398330: Vulnerabilities in the additional GNU/Linux subsystem of the SIMATIC S7-1500 CPU 1518(F)-4 PN/DP MFP >= V3.1.0 and < V3.1.5

Scope

544 vulnerabilities in this advisory, including CVE-2019-9923.

CVE-2019-9923

pax_decode_header in sparse.c in GNU Tar before 1.32 had a NULL pointer dereference when parsing certain archives that have malformed extended headers.

7.5 (High)


                
                  CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:P/RL:O/RC:C

Known affected: 5 products

https://support.industry.siemens.com/cs/ww/en/view/109478459/

Open the full advisory

SUSE-SU-2019:0926-1

Vulnerability from csaf_suse - Published: 2019-04-10 14:33 - Updated: 2026-09-20 13:07

Summary

Security update for tar

Severity

Moderate

Scope

2 vulnerabilities in this advisory, including CVE-2019-9923.

CVE-2019-9923

3.3 (Low)


                
                  CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L

Recommended: 45 products

Open the full advisory

SUSE-SU-2019:14215-1

Vulnerability from csaf_suse - Published: 2019-11-11 12:04 - Updated: 2026-09-20 13:12

Summary

Security update for tar

Severity

Moderate

Scope

2 vulnerabilities in this advisory, including CVE-2019-9923.

CVE-2019-9923

3.3 (Low)


                
                  CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L

Recommended: 17 products

Open the full advisory

SUSE-SU-2020:2806-1

Vulnerability from csaf_suse - Published: 2020-09-30 12:36 - Updated: 2026-09-20 13:39

Summary

Security update for tar

Severity

Moderate

Scope

2 vulnerabilities in this advisory, including CVE-2019-9923.

CVE-2019-9923

3.3 (Low)


                
                  CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L

Recommended: 15 products

Open the full advisory

SUSE-SU-2022:1548-1

Vulnerability from csaf_suse - Published: 2022-05-05 14:45 - Updated: 2026-09-20 14:24

Summary

Security update for tar

Severity

Moderate

Scope

3 vulnerabilities in this advisory, including CVE-2019-9923.

CVE-2019-9923

3.3 (Low)


                
                  CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L

Recommended: 107 products

Open the full advisory

UBUNTU-CVE-2019-9923 (CVE-2019-9923)

Vulnerability from osv_ubuntu – Published: 2019-03-22 08:29 – Updated: 2025-09-08 16:45 – Source website

Details

pax_decode_header in sparse.c in GNU Tar before 1.32 had a NULL pointer dereference when parsing certain archives that have malformed extended headers.

Severity

7.5 (High)


                    
                      CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

7.5 (High)


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

N/A (UNKNOWN)

low

References

URL

Type

	https://ubuntu.com/security/CVE-2019-9923	REPORT
	https://ubuntu.com/security/notices/USN-4692-1	ADVISORY
	https://www.cve.org/CVERecord?id=CVE-2019-9923	REPORT

JSON

To clipboard

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    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2019-9923"
    }
  ],
  "related": [
    "USN-4692-1"
  ],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "low",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2019-9923"
  ]
}

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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Publication & reservation Sightings KEV catalogs Other timestamps

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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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CVE-2019-9923 (GCVE-0-2019-9923)

SSA-398330

SUSE-SU-2019:0926-1

SUSE-SU-2019:14215-1

SUSE-SU-2020:2806-1

SUSE-SU-2022:1548-1

UBUNTU-CVE-2019-9923 (CVE-2019-9923)

Tags

Sightings

Nomenclature

Vulnerability timeline

Related by attack behaviour