Vulnerability-Lookup

CNVD-2019-22448

Vulnerability from cnvd - Published: 2019-07-11

Title

PuTTY拒绝服务漏洞（CNVD-2019-22448）

Description

PuTTY是Windows和Unix平台的SSH和Telnet的免费实现，亦是一个xterm终端仿真器。 PuTTY 0.71之前版本存在拒绝服务漏洞。攻击者可通过写入终端利用该漏洞导致拒绝服务。

Severity

中

Patch Name

PuTTY拒绝服务漏洞（CNVD-2019-22448）的补丁

Patch Description

PuTTY是Windows和Unix平台的SSH和Telnet的免费实现，亦是一个xterm终端仿真器。 PuTTY 0.71之前版本存在拒绝服务漏洞。攻击者可通过写入终端利用该漏洞导致拒绝服务。目前，供应商发布了安全公告及相关补丁信息，修复了此漏洞。

Formal description

厂商已发布漏洞修复程序，请及时关注更新： https://www.chiark.greenend.org.uk/~sgtatham/putty/changes.html

Reference

https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-9897

Impacted products

Name
putty putty <0.71

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2019-9897"
    }
  },
  "description": "PuTTY\u662fWindows\u548cUnix\u5e73\u53f0\u7684SSH\u548cTelnet\u7684\u514d\u8d39\u5b9e\u73b0\uff0c\u4ea6\u662f\u4e00\u4e2axterm\u7ec8\u7aef\u4eff\u771f\u5668\u3002\n\nPuTTY 0.71\u4e4b\u524d\u7248\u672c\u5b58\u5728\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\u3002\u653b\u51fb\u8005\u53ef\u901a\u8fc7\u5199\u5165\u7ec8\u7aef\u5229\u7528\u8be5\u6f0f\u6d1e\u5bfc\u81f4\u62d2\u7edd\u670d\u52a1\u3002",
  "discovererName": "putty",
  "formalWay": "\u5382\u5546\u5df2\u53d1\u5e03\u6f0f\u6d1e\u4fee\u590d\u7a0b\u5e8f\uff0c\u8bf7\u53ca\u65f6\u5173\u6ce8\u66f4\u65b0\uff1a\r\nhttps://www.chiark.greenend.org.uk/~sgtatham/putty/changes.html",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2019-22448",
  "openTime": "2019-07-11",
  "patchDescription": "PuTTY\u662fWindows\u548cUnix\u5e73\u53f0\u7684SSH\u548cTelnet\u7684\u514d\u8d39\u5b9e\u73b0\uff0c\u4ea6\u662f\u4e00\u4e2axterm\u7ec8\u7aef\u4eff\u771f\u5668\u3002\r\n\r\nPuTTY 0.71\u4e4b\u524d\u7248\u672c\u5b58\u5728\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\u3002\u653b\u51fb\u8005\u53ef\u901a\u8fc7\u5199\u5165\u7ec8\u7aef\u5229\u7528\u8be5\u6f0f\u6d1e\u5bfc\u81f4\u62d2\u7edd\u670d\u52a1\u3002\u76ee\u524d\uff0c\u4f9b\u5e94\u5546\u53d1\u5e03\u4e86\u5b89\u5168\u516c\u544a\u53ca\u76f8\u5173\u8865\u4e01\u4fe1\u606f\uff0c\u4fee\u590d\u4e86\u6b64\u6f0f\u6d1e\u3002",
  "patchName": "PuTTY\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\uff08CNVD-2019-22448\uff09\u7684\u8865\u4e01",
  "products": {
    "product": "putty putty \u003c0.71"
  },
  "referenceLink": "https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-9897",
  "serverity": "\u4e2d",
  "submitTime": "2019-03-21",
  "title": "PuTTY\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\uff08CNVD-2019-22448\uff09"
}

CVE-2019-9897 (GCVE-0-2019-9897)

Vulnerability from cvelistv5 – Published: 2019-03-21 02:31 – Updated: 2024-08-04 22:01

Summary

Multiple denial-of-service attacks that can be triggered by writing to the terminal exist in PuTTY versions before 0.71.

Severity

No CVSS data available.

CWE

Assigner

mitre mitre root

References

9 references

URL	Tags
https://www.chiark.greenend.org.uk/~sgtatham/putt…	x_refsource_MISC
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisoryx_refsource_FEDORA
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisoryx_refsource_FEDORA
http://lists.opensuse.org/opensuse-security-annou…	vendor-advisoryx_refsource_SUSE
http://lists.opensuse.org/opensuse-security-annou…	vendor-advisoryx_refsource_SUSE
https://seclists.org/bugtraq/2019/Apr/6	mailing-listx_refsource_BUGTRAQ
https://security.netapp.com/advisory/ntap-2019040…	x_refsource_CONFIRM
https://www.debian.org/security/2019/dsa-4423	vendor-advisoryx_refsource_DEBIAN
https://lists.debian.org/debian-lts-announce/2019…	mailing-listx_refsource_MLIST

Show details on NVD website

JSON

To clipboard

{
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            "url": "https://www.chiark.greenend.org.uk/~sgtatham/putty/changes.html"
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            "name": "FEDORA-2019-5776dfe300",
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            "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LDO3F267P347E6U2IILFCYW7JPTLCCES/"
          },
          {
            "name": "FEDORA-2019-9e1a1cd634",
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            "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/36LWQ3NPFIV7DC7TC4KFPRYRH2OR7SZ2/"
          },
          {
            "name": "openSUSE-SU-2019:1113",
            "tags": [
              "vendor-advisory",
              "x_refsource_SUSE",
              "x_transferred"
            ],
            "url": "http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00004.html"
          },
          {
            "name": "openSUSE-SU-2019:1123",
            "tags": [
              "vendor-advisory",
              "x_refsource_SUSE",
              "x_transferred"
            ],
            "url": "http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00020.html"
          },
          {
            "name": "20190403 [SECURITY] [DSA 4423-1] putty security update",
            "tags": [
              "mailing-list",
              "x_refsource_BUGTRAQ",
              "x_transferred"
            ],
            "url": "https://seclists.org/bugtraq/2019/Apr/6"
          },
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            "url": "https://security.netapp.com/advisory/ntap-20190404-0001/"
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            "tags": [
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            "url": "https://www.debian.org/security/2019/dsa-4423"
          },
          {
            "name": "[debian-lts-announce] 20190424 [SECURITY] [DLA 1763-1] putty security update",
            "tags": [
              "mailing-list",
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            "url": "https://lists.debian.org/debian-lts-announce/2019/04/msg00023.html"
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        ],
        "title": "CVE Program Container"
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          "tags": [
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        },
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          "name": "[debian-lts-announce] 20190424 [SECURITY] [DLA 1763-1] putty security update",
          "tags": [
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          ],
          "url": "https://lists.debian.org/debian-lts-announce/2019/04/msg00023.html"
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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.

Detection rules are retrieved from Rulezet.

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.

Action not permitted

CNVD-2019-22448

CVE-2019-9897 (GCVE-0-2019-9897)

Tags

Sightings

Nomenclature

Related by attack behaviour