Vulnerability-Lookup

CNVD-2021-25959

Vulnerability from cnvd - Published: 2021-04-08

Title

Rust越界写入漏洞

Description

Rust是Mozilla基金会的一款通用、编译型编程语言。 Rust在2021-02-19及之前版本存在安全漏洞，该漏洞源于StackVec::extend中如果size_hint提供了某些异常数据则可能导致越界写入，攻击者利用该漏洞可能导致远程代码执行。

Severity

高

Patch Name

Rust越界写入漏洞的补丁

Patch Description

Rust是Mozilla基金会的一款通用、编译型编程语言。 Rust在2021-02-19及之前版本存在安全漏洞，该漏洞源于StackVec::extend中如果size_hint提供了某些异常数据则可能导致越界写入，攻击者利用该漏洞可能导致远程代码执行。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

厂商已发布了漏洞修复程序，请及时关注更新： https://rustsec.org/advisories/RUSTSEC-2021-0048.html

Reference

https://nvd.nist.gov/vuln/detail/CVE-2021-29939

Impacted products

Name
Mozilla Rust <=2021-02-19

Show details on source website

JSON

To clipboard

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  "cves": {
    "cve": {
      "cveNumber": "CVE-2021-29939",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2021-29939"
    }
  },
  "description": "Rust\u662fMozilla\u57fa\u91d1\u4f1a\u7684\u4e00\u6b3e\u901a\u7528\u3001\u7f16\u8bd1\u578b\u7f16\u7a0b\u8bed\u8a00\u3002\n\nRust\u57282021-02-19\u53ca\u4e4b\u524d\u7248\u672c\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8eStackVec::extend\u4e2d\u5982\u679csize_hint\u63d0\u4f9b\u4e86\u67d0\u4e9b\u5f02\u5e38\u6570\u636e\u5219\u53ef\u80fd\u5bfc\u81f4\u8d8a\u754c\u5199\u5165\uff0c\u653b\u51fb\u8005\u5229\u7528\u8be5\u6f0f\u6d1e\u53ef\u80fd\u5bfc\u81f4\u8fdc\u7a0b\u4ee3\u7801\u6267\u884c\u3002",
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  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2021-25959",
  "openTime": "2021-04-08",
  "patchDescription": "Rust\u662fMozilla\u57fa\u91d1\u4f1a\u7684\u4e00\u6b3e\u901a\u7528\u3001\u7f16\u8bd1\u578b\u7f16\u7a0b\u8bed\u8a00\u3002\r\n\r\nRust\u57282021-02-19\u53ca\u4e4b\u524d\u7248\u672c\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8eStackVec::extend\u4e2d\u5982\u679csize_hint\u63d0\u4f9b\u4e86\u67d0\u4e9b\u5f02\u5e38\u6570\u636e\u5219\u53ef\u80fd\u5bfc\u81f4\u8d8a\u754c\u5199\u5165\uff0c\u653b\u51fb\u8005\u5229\u7528\u8be5\u6f0f\u6d1e\u53ef\u80fd\u5bfc\u81f4\u8fdc\u7a0b\u4ee3\u7801\u6267\u884c\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": "Rust\u8d8a\u754c\u5199\u5165\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "Mozilla Rust \u003c=2021-02-19"
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2021-29939",
  "serverity": "\u9ad8",
  "submitTime": "2021-04-02",
  "title": "Rust\u8d8a\u754c\u5199\u5165\u6f0f\u6d1e"
}

CVE-2021-29939 (GCVE-0-2021-29939)

Vulnerability from cvelistv5 – Published: 2021-04-01 04:23 – Updated: 2024-11-19 16:11

Summary

An issue was discovered in the stackvector crate through 2021-02-19 for Rust. There is an out-of-bounds write in StackVec::extend if size_hint provides certain anomalous data.

Severity ?

No CVSS data available.

CWE

Assigner

mitre

References

URL

Tags

https://rustsec.org/advisories/RUSTSEC-2021-0048.html

x_refsource_MISC

Show details on NVD website

JSON

To clipboard

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Sightings

Author	Source	Type	Date

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.

Action not permitted

CNVD-2021-25959

CVE-2021-29939 (GCVE-0-2021-29939)

Tags

Sightings

Nomenclature