Vulnerability-Lookup

CNVD-2021-01279

Vulnerability from cnvd - Published: 2021-01-07

Title

GNU Binutils堆缓冲区溢出漏洞（CNVD-2021-01279）

Description

GNU Binutils是一组用于创建和管理二进制程序、对象文件、库、配置文件数据及程序集源代码的编程工具。 GNU Binutils 2.34之前版本中的bfd/pef.c中的bfd_pef_parse_function_stubs存在堆缓冲区溢出漏洞。攻击者可通过特制PEF文件利用该漏洞导致拒绝服务。

Severity

中

Patch Name

GNU Binutils堆缓冲区溢出漏洞（CNVD-2021-01279）的补丁

Patch Description

GNU Binutils是一组用于创建和管理二进制程序、对象文件、库、配置文件数据及程序集源代码的编程工具。 GNU Binutils 2.34之前版本中的bfd/pef.c中的bfd_pef_parse_function_stubs存在堆缓冲区溢出漏洞。攻击者可通过特制PEF文件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

厂商已发布了漏洞修复程序，请及时关注更新： https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=f2a3559d54602cecfec6d90f792be4a70ad918ab

Reference

https://nvd.nist.gov/vuln/detail/CVE-2020-35493

Impacted products

Name
GNU Binutils <2.34

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2020-35493",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2020-35493"
    }
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  "description": "GNU Binutils\u662f\u4e00\u7ec4\u7528\u4e8e\u521b\u5efa\u548c\u7ba1\u7406\u4e8c\u8fdb\u5236\u7a0b\u5e8f\u3001\u5bf9\u8c61\u6587\u4ef6\u3001\u5e93\u3001\u914d\u7f6e\u6587\u4ef6\u6570\u636e\u53ca\u7a0b\u5e8f\u96c6\u6e90\u4ee3\u7801\u7684\u7f16\u7a0b\u5de5\u5177\u3002\n\nGNU Binutils 2.34\u4e4b\u524d\u7248\u672c\u4e2d\u7684bfd/pef.c\u4e2d\u7684bfd_pef_parse_function_stubs\u5b58\u5728\u5806\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e\u3002\u653b\u51fb\u8005\u53ef\u901a\u8fc7\u7279\u5236PEF\u6587\u4ef6\u5229\u7528\u8be5\u6f0f\u6d1e\u5bfc\u81f4\u62d2\u7edd\u670d\u52a1\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://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=f2a3559d54602cecfec6d90f792be4a70ad918ab",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2021-01279",
  "openTime": "2021-01-07",
  "patchDescription": "GNU Binutils\u662f\u4e00\u7ec4\u7528\u4e8e\u521b\u5efa\u548c\u7ba1\u7406\u4e8c\u8fdb\u5236\u7a0b\u5e8f\u3001\u5bf9\u8c61\u6587\u4ef6\u3001\u5e93\u3001\u914d\u7f6e\u6587\u4ef6\u6570\u636e\u53ca\u7a0b\u5e8f\u96c6\u6e90\u4ee3\u7801\u7684\u7f16\u7a0b\u5de5\u5177\u3002\r\n\r\nGNU Binutils 2.34\u4e4b\u524d\u7248\u672c\u4e2d\u7684bfd/pef.c\u4e2d\u7684bfd_pef_parse_function_stubs\u5b58\u5728\u5806\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e\u3002\u653b\u51fb\u8005\u53ef\u901a\u8fc7\u7279\u5236PEF\u6587\u4ef6\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": "GNU Binutils\u5806\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e\uff08CNVD-2021-01279\uff09\u7684\u8865\u4e01",
  "products": {
    "product": "GNU Binutils \u003c2.34"
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2020-35493",
  "serverity": "\u4e2d",
  "submitTime": "2021-01-05",
  "title": "GNU Binutils\u5806\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e\uff08CNVD-2021-01279\uff09"
}

CVE-2020-35493 (GCVE-0-2020-35493)

Vulnerability from cvelistv5 – Published: 2021-01-04 14:22 – Updated: 2024-08-04 17:02

Summary

A flaw exists in binutils in bfd/pef.c. An attacker who is able to submit a crafted PEF file to be parsed by objdump could cause a heap buffer overflow -> out-of-bounds read that could lead to an impact to application availability. This flaw affects binutils versions prior to 2.34.

Severity

No CVSS data available.

CWE

CWE-20 - >CWE-122->CWE-125

Assigner

redhat redhat root

References

4 references

URL	Tags
https://bugzilla.redhat.com/show_bug.cgi?id=1911437	x_refsource_MISC
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisoryx_refsource_FEDORA
https://security.netapp.com/advisory/ntap-2021021…	x_refsource_CONFIRM
https://security.gentoo.org/glsa/202107-24	vendor-advisoryx_refsource_GENTOO

Impacted products

1 product

Vendor	Product	Version
n/a	binutils	Affected: binutils 2.34

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.

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.