Vulnerability-Lookup

CNVD-2015-08408

Vulnerability from cnvd - Published: 2015-12-23

Title

Grub2整数溢出漏洞

Description

GNU GRUB是GNU计划开发的一套GNU项目的启动引导程序。Grub2是其中的一个增强版。 Grub2 grub-core/normal/auth.c文件中的‘grub_username_get’函数和lib/crypto.c文件中的‘grub_password_get’函数中的退格字符处理存在安全漏洞，允许攻击者利用漏洞获取敏感信息或造进行拒绝服务攻击。

Severity

中

Patch Name

Grub2整数溢出漏洞的补丁

Patch Description

Formal description

用户可参考如下厂商提供的安全补丁以修复该漏洞： https://www.gnu.org/

Reference

http://www.openwall.com/lists/oss-security/2015/12/15/6

Impacted products

Name
GNU GRUB2 1.98-2.02

Show details on source website

JSON

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    "bid": {
      "bidNumber": "79358"
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    "cve": {
      "cveNumber": "CVE-2015-8370"
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  "description": "GNU GRUB\u662fGNU\u8ba1\u5212\u5f00\u53d1\u7684\u4e00\u5957GNU\u9879\u76ee\u7684\u542f\u52a8\u5f15\u5bfc\u7a0b\u5e8f\u3002Grub2\u662f\u5176\u4e2d\u7684\u4e00\u4e2a\u589e\u5f3a\u7248\u3002\r\n\r\nGrub2 grub-core/normal/auth.c\u6587\u4ef6\u4e2d\u7684\u2018grub_username_get\u2019\u51fd\u6570\u548clib/crypto.c\u6587\u4ef6\u4e2d\u7684\u2018grub_password_get\u2019\u51fd\u6570\u4e2d\u7684\u9000\u683c\u5b57\u7b26\u5904\u7406\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\uff0c\u5141\u8bb8\u653b\u51fb\u8005\u5229\u7528\u6f0f\u6d1e\u83b7\u53d6\u654f\u611f\u4fe1\u606f\u6216\u9020\u8fdb\u884c\u62d2\u7edd\u670d\u52a1\u653b\u51fb\u3002",
  "discovererName": "Hector Marco and Ismael Ripoll.",
  "formalWay": "\u7528\u6237\u53ef\u53c2\u8003\u5982\u4e0b\u5382\u5546\u63d0\u4f9b\u7684\u5b89\u5168\u8865\u4e01\u4ee5\u4fee\u590d\u8be5\u6f0f\u6d1e\uff1a\r\nhttps://www.gnu.org/",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2015-08408",
  "openTime": "2015-12-23",
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  "referenceLink": "http://www.openwall.com/lists/oss-security/2015/12/15/6",
  "serverity": "\u4e2d",
  "submitTime": "2015-12-20",
  "title": "Grub2\u6574\u6570\u6ea2\u51fa\u6f0f\u6d1e"
}

CVE-2015-8370 (GCVE-0-2015-8370)

Vulnerability from cvelistv5 – Published: 2015-12-16 00:00 – Updated: 2024-10-21 16:51

Summary

Multiple integer underflows in Grub2 1.98 through 2.02 allow physically proximate attackers to bypass authentication, obtain sensitive information, or cause a denial of service (disk corruption) via backspace characters in the (1) grub_username_get function in grub-core/normal/auth.c or the (2) grub_password_get function in lib/crypto.c, which trigger an "Off-by-two" or "Out of bounds overwrite" memory error.

Severity

7.4 (High)


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

SSVC

Exploitation: poc Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2024-03-06 21:01 UTC

CWE

n/a
CWE-191 - Integer Underflow (Wrap or Wraparound)

Assigner

mitre mitre root

References

23 references

URL	Tags
http://packetstormsecurity.com/files/134831/Grub2…
http://lists.opensuse.org/opensuse-security-annou…	vendor-advisory
http://lists.opensuse.org/opensuse-security-annou…	vendor-advisory
http://hmarco.org/bugs/CVE-2015-8370-Grub2-authen…
http://www.securityfocus.com/bid/79358	vdb-entry
http://lists.opensuse.org/opensuse-security-annou…	vendor-advisory
http://www.securitytracker.com/id/1034422	vdb-entry
http://www.oracle.com/technetwork/topics/security…
http://lists.opensuse.org/opensuse-security-annou…	vendor-advisory
http://lists.opensuse.org/opensuse-security-annou…	vendor-advisory
http://www.oracle.com/technetwork/topics/security…
http://www.openwall.com/lists/oss-security/2015/12/15/6	mailing-list
http://www.securityfocus.com/archive/1/537115/100…	mailing-list
http://lists.opensuse.org/opensuse-security-annou…	vendor-advisory
http://seclists.org/fulldisclosure/2015/Dec/69	mailing-list
https://security.gentoo.org/glsa/201512-03	vendor-advisory
http://lists.fedoraproject.org/pipermail/package-…	vendor-advisory
http://www.ubuntu.com/usn/USN-2836-1	vendor-advisory
http://lists.fedoraproject.org/pipermail/package-…	vendor-advisory
http://rhn.redhat.com/errata/RHSA-2015-2623.html	vendor-advisory
http://lists.opensuse.org/opensuse-security-annou…	vendor-advisory
http://www.debian.org/security/2015/dsa-3421	vendor-advisory
http://www.openwall.com/lists/oss-security/2024/01/15/3	mailing-list

Date Public

2015-12-10 00:00

Show details on NVD website

JSON

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Sightings

Author	Source	Type	Date	Other

Nomenclature

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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.

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Action not permitted

CNVD-2015-08408

CVE-2015-8370 (GCVE-0-2015-8370)

Tags

Sightings

Nomenclature

Related by attack behaviour