Vulnerability-Lookup

CNVD-2020-43161

Vulnerability from cnvd - Published: 2020-07-23

Title

Apache Tomcat缓冲区溢出漏洞

Description

Apache Tomcat是美国阿帕奇（Apache）软件基金会的一款轻量级Web应用服务器。该程序实现了对Servlet和JavaServer Page（JSP）的支持。 Apache Tomcat 10.0.0-M1版本至10.0.0-M6版本，9.0.0.M5版本至9.0.36版本和8.5.1版本至8.5.56中存在缓冲区溢出漏洞。攻击者可借助大量请求利用该漏洞造成拒绝服务。

Severity

低

Patch Name

Apache Tomcat缓冲区溢出漏洞的补丁

Patch Description

Formal description

目前厂商已发布升级补丁以修复漏洞，补丁获取链接： https://lists.apache.org/thread.html/r61f411cf82488d6ec213063fc15feeeb88e31b0ca9c29652ee4f962e%40%3Cannounce.tomcat.apache.org%3E

Reference

https://www.debian.org/security/2020/dsa-4727

Impacted products

Name
['Apache Tomcat >=10.0.0-M1，<=10.0.0-M6', 'Apache Tomcat >=9.0.0.M5，<=9.0.36', 'Apache Tomcat >=8.5.1，<=8.5.56']

Show details on source website

JSON

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  "submitTime": "2020-07-22",
  "title": "Apache Tomcat\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e"
}

CVE-2020-13934 (GCVE-0-2020-13934)

Vulnerability from cvelistv5 – Published: 2020-07-14 14:59 – Updated: 2026-10-08 21:13

Summary

An h2c direct connection to Apache Tomcat 10.0.0-M1 to 10.0.0-M6, 9.0.0.M5 to 9.0.36 and 8.5.1 to 8.5.56 did not release the HTTP/1.1 processor after the upgrade to HTTP/2. If a sufficient number of such requests were made, an OutOfMemoryException could occur leading to a denial of service.

Severity

No CVSS data available.

SSVC

Exploitation: none Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-10-08 21:09 UTC

CWE

Denial of Service

Assigner

apache CNA under the mitre root

CNA scorecard B 76/100 over 934 records in the last 180 days details

References

13 references

URL	Tags
https://lists.apache.org/thread.html/r61f411cf824…	x_refsource_MISC
https://www.debian.org/security/2020/dsa-4727	vendor-advisoryx_refsource_DEBIAN
https://lists.debian.org/debian-lts-announce/2020…	mailing-listx_refsource_MLIST
http://lists.opensuse.org/opensuse-security-annou…	vendor-advisoryx_refsource_SUSE
http://lists.opensuse.org/opensuse-security-annou…	vendor-advisoryx_refsource_SUSE
https://lists.apache.org/thread.html/ra072b1f786e…	mailing-listx_refsource_MLIST
https://www.oracle.com/security-alerts/cpuoct2020.html	x_refsource_MISC
https://security.netapp.com/advisory/ntap-2020072…	x_refsource_CONFIRM
https://usn.ubuntu.com/4596-1/	vendor-advisoryx_refsource_UBUNTU
https://www.oracle.com/security-alerts/cpujan2021.html	x_refsource_MISC
https://www.oracle.com/security-alerts/cpuApr2021.html	x_refsource_MISC
https://www.oracle.com//security-alerts/cpujul2021.html	x_refsource_MISC
https://www.oracle.com/security-alerts/cpujan2022.html	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
n/a	Apache Tomcat	Affected: Apache Tomcat 10.0.0-M1 to 10.0.0-M6, 9.0.0.M5 to 9.0.36, 8.5.1 to 8.5.56

Show details on NVD website

JSON

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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

Order JSON

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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