Vulnerability-Lookup

VAR-200209-0032

Vulnerability from variot - Updated: 2025-04-03 20:05

Buffer overflows in Cisco Virtual Private Network (VPN) Client 3.5.4 and earlier allows remote attackers to cause a denial of service via (1) an Internet Key Exchange (IKE) with a large Security Parameter Index (SPI) payload, or (2) an IKE packet with a large number of valid payloads. VPN Client for Linux is prone to a denial-of-service vulnerability. An attacker can exploit this issue to cause denial-of-service conditions. Cisco Virtual Private Network (VPN) Client software is used to communicate with Cisco VPN Concentrator, it can run on Windows, Solaris, redhat linux, Apple MacOS and other systems. The Cisco VPN Client software contains multiple security holes, which can be exploited by attackers to prevent the Cisco VPN Client software program from working properly. * An IKE packet containing more than 57 payloads can trigger VPN Client software buffer overflow. * When the VPN Client software receives a malformed data packet with a payload length of zero, the VPN Client software will occupy 100\% of the CPU resources of the workstation. The Cisco bug ID for these vulnerabilities is CSCdy26045

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CVE-2002-0852 (GCVE-0-2002-0852)

Vulnerability from cvelistv5 – Published: 2002-08-14 04:00 – Updated: 2024-08-08 03:03

Summary

Severity

No CVSS data available.

CWE

Assigner

mitre CNA under the mitre root

CNA scorecard E 28/100 over 2260 records in the last 180 days details

References

1 reference

URL	Tags
http://www.cisco.com/warp/public/707/vpnclient-mu…	vendor-advisoryx_refsource_CISCO

Date Public

2002-08-12 00:00

Show details on NVD website

JSON

To clipboard

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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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