Vulnerability-Lookup

CNVD-2021-02629

Vulnerability from cnvd - Published: 2021-01-13

Title

Xpdf资源管理错误漏洞（CNVD-2021-02629）

Description

Xpdf是一个免费PDF查看器和工具包，包括文本提取器、图像转换器、HTML转换器等。 Xpdf 4.02存在资源管理错误漏洞。该漏洞源于SplashOutputDev::endType3Char(GfxState *state) SplashOutputDev.cc:3079尝试使用释放的`t3GlyphStack->cache`。目前没有详细的漏洞细节提供。

Severity

中

Patch Name

Xpdf资源管理错误漏洞（CNVD-2021-02629）的补丁

Patch Description

Formal description

厂商已发布了漏洞修复程序，请及时关注更新： https://forum.xpdfreader.com/viewtopic.php?f=3&t=41915

Reference

https://nvd.nist.gov/vuln/detail/CVE-2020-25725

Impacted products

Name
Foo Labs Xpdf 4.02

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2020-25725",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2020-25725"
    }
  },
  "description": "Xpdf\u662f\u4e00\u4e2a\u514d\u8d39PDF\u67e5\u770b\u5668\u548c\u5de5\u5177\u5305\uff0c\u5305\u62ec\u6587\u672c\u63d0\u53d6\u5668\u3001\u56fe\u50cf\u8f6c\u6362\u5668\u3001HTML\u8f6c\u6362\u5668\u7b49\u3002\n\nXpdf 4.02\u5b58\u5728\u8d44\u6e90\u7ba1\u7406\u9519\u8bef\u6f0f\u6d1e\u3002\u8be5\u6f0f\u6d1e\u6e90\u4e8eSplashOutputDev::endType3Char(GfxState *state) SplashOutputDev.cc:3079\u5c1d\u8bd5\u4f7f\u7528\u91ca\u653e\u7684`t3GlyphStack-\u003ecache`\u3002\u76ee\u524d\u6ca1\u6709\u8be6\u7ec6\u7684\u6f0f\u6d1e\u7ec6\u8282\u63d0\u4f9b\u3002",
  "formalWay": "\u5382\u5546\u5df2\u53d1\u5e03\u4e86\u6f0f\u6d1e\u4fee\u590d\u7a0b\u5e8f\uff0c\u8bf7\u53ca\u65f6\u5173\u6ce8\u66f4\u65b0\uff1a\r\nhttps://forum.xpdfreader.com/viewtopic.php?f=3\u0026t=41915",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2021-02629",
  "openTime": "2021-01-13",
  "patchDescription": "Xpdf\u662f\u4e00\u4e2a\u514d\u8d39PDF\u67e5\u770b\u5668\u548c\u5de5\u5177\u5305\uff0c\u5305\u62ec\u6587\u672c\u63d0\u53d6\u5668\u3001\u56fe\u50cf\u8f6c\u6362\u5668\u3001HTML\u8f6c\u6362\u5668\u7b49\u3002\r\n\r\nXpdf 4.02\u5b58\u5728\u8d44\u6e90\u7ba1\u7406\u9519\u8bef\u6f0f\u6d1e\u3002\u8be5\u6f0f\u6d1e\u6e90\u4e8eSplashOutputDev::endType3Char(GfxState *state) SplashOutputDev.cc:3079\u5c1d\u8bd5\u4f7f\u7528\u91ca\u653e\u7684`t3GlyphStack-\u003ecache`\u3002\u76ee\u524d\u6ca1\u6709\u8be6\u7ec6\u7684\u6f0f\u6d1e\u7ec6\u8282\u63d0\u4f9b\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": "Xpdf\u8d44\u6e90\u7ba1\u7406\u9519\u8bef\u6f0f\u6d1e\uff08CNVD-2021-02629\uff09\u7684\u8865\u4e01",
  "products": {
    "product": "Foo Labs Xpdf 4.02"
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2020-25725",
  "serverity": "\u4e2d",
  "submitTime": "2020-11-23",
  "title": "Xpdf\u8d44\u6e90\u7ba1\u7406\u9519\u8bef\u6f0f\u6d1e\uff08CNVD-2021-02629\uff09"
}

CVE-2020-25725 (GCVE-0-2020-25725)

Vulnerability from cvelistv5 – Published: 2020-11-21 05:29 – Updated: 2024-08-04 15:40

Summary

In Xpdf 4.02, SplashOutputDev::endType3Char(GfxState *state) SplashOutputDev.cc:3079 is trying to use the freed `t3GlyphStack->cache`, which causes an `heap-use-after-free` problem. The codes of a previous fix for nested Type 3 characters wasn't correctly handling the case where a Type 3 char referred to another char in the same Type 3 font.

Severity

5 (Medium)


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

CWE

CWE-416

Assigner

redhat redhat root

References

4 references

URL	Tags
https://forum.xpdfreader.com/viewtopic.php?f=3&t=41915	x_refsource_MISC
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2…	x_refsource_CONFIRM
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisoryx_refsource_FEDORA
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisoryx_refsource_FEDORA

Impacted products

1 product

Vendor	Product	Version
Glyph & Cog	xpdf	Affected: 4.02

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-04T15:40:36.653Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://forum.xpdfreader.com/viewtopic.php?f=3\u0026t=41915"
          },
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-25725"
          },
          {
            "name": "FEDORA-2021-4a437fe032",
            "tags": [
              "vendor-advisory",
              "x_refsource_FEDORA",
              "x_transferred"
            ],
            "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4ZUU5QG6SSVRTKZTR3A72LDRVZETEI63/"
          },
          {
            "name": "FEDORA-2021-013d9a30e0",
            "tags": [
              "vendor-advisory",
              "x_refsource_FEDORA",
              "x_transferred"
            ],
            "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VLOYVJSM54IL6I5RY4QTJGRS7PIEG44X/"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "xpdf",
          "vendor": "Glyph \u0026 Cog",
          "versions": [
            {
              "status": "affected",
              "version": "4.02"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In Xpdf 4.02, SplashOutputDev::endType3Char(GfxState *state) SplashOutputDev.cc:3079 is trying to use the freed `t3GlyphStack-\u003ecache`, which causes an `heap-use-after-free` problem. The codes of a previous fix for nested Type 3 characters wasn\u0027t correctly handling the case where a Type 3 char referred to another char in the same Type 3 font."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "LOCAL",
            "availabilityImpact": "HIGH",
            "baseScore": 5,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:H",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-416",
              "description": "CWE-416",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2021-02-11T03:06:08.000Z",
        "orgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
        "shortName": "redhat"
      },
      "references": [
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://forum.xpdfreader.com/viewtopic.php?f=3\u0026t=41915"
        },
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-25725"
        },
        {
          "name": "FEDORA-2021-4a437fe032",
          "tags": [
            "vendor-advisory",
            "x_refsource_FEDORA"
          ],
          "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4ZUU5QG6SSVRTKZTR3A72LDRVZETEI63/"
        },
        {
          "name": "FEDORA-2021-013d9a30e0",
          "tags": [
            "vendor-advisory",
            "x_refsource_FEDORA"
          ],
          "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VLOYVJSM54IL6I5RY4QTJGRS7PIEG44X/"
        }
      ]
    }
  },
  "cveMetadata": {
    "assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
    "assignerShortName": "redhat",
    "cveId": "CVE-2020-25725",
    "datePublished": "2020-11-21T05:29:54.000Z",
    "dateReserved": "2020-09-16T00:00:00.000Z",
    "dateUpdated": "2024-08-04T15:40:36.653Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

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.