Vulnerability-Lookup

CNVD-2020-03997

Vulnerability from cnvd - Published: 2020-02-06

Title

Oniguruma整数溢出漏洞

Description

Oniguruma是支持多种字符编码的BSD许可的正则表达式库。 Oniguruma中的regexec.c中的search_in_range函数存在整数溢出漏洞，远程攻击者可通过特制正则表达式利用该漏洞导致越界读取，从而可导致拒绝服务或信息泄露，或可能造成其他影响。

Severity

高

Patch Name

Oniguruma整数溢出漏洞的补丁

Patch Description

Oniguruma是支持多种字符编码的BSD许可的正则表达式库。 Oniguruma中的regexec.c中的search_in_range函数存在整数溢出漏洞，远程攻击者可通过特制正则表达式利用该漏洞导致越界读取，从而可导致拒绝服务或信息泄露，或可能造成其他影响。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://github.com/kkos/oniguruma/releases/tag/v6.9.4_rc2

Reference

https://nvd.nist.gov/vuln/detail/CVE-2019-19012

Impacted products

Name
Oniguruma Oniguruma 6.*，<6.9.4_rc2

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{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2019-19012",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2019-19012"
    }
  },
  "description": "Oniguruma\u662f\u652f\u6301\u591a\u79cd\u5b57\u7b26\u7f16\u7801\u7684BSD\u8bb8\u53ef\u7684\u6b63\u5219\u8868\u8fbe\u5f0f\u5e93\u3002\n\nOniguruma\u4e2d\u7684regexec.c\u4e2d\u7684search_in_range\u51fd\u6570\u5b58\u5728\u6574\u6570\u6ea2\u51fa\u6f0f\u6d1e\uff0c\u8fdc\u7a0b\u653b\u51fb\u8005\u53ef\u901a\u8fc7\u7279\u5236\u6b63\u5219\u8868\u8fbe\u5f0f\u5229\u7528\u8be5\u6f0f\u6d1e\u5bfc\u81f4\u8d8a\u754c\u8bfb\u53d6\uff0c\u4ece\u800c\u53ef\u5bfc\u81f4\u62d2\u7edd\u670d\u52a1\u6216\u4fe1\u606f\u6cc4\u9732\uff0c\u6216\u53ef\u80fd\u9020\u6210\u5176\u4ed6\u5f71\u54cd\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://github.com/kkos/oniguruma/releases/tag/v6.9.4_rc2",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2020-03997",
  "openTime": "2020-02-06",
  "patchDescription": "Oniguruma\u662f\u652f\u6301\u591a\u79cd\u5b57\u7b26\u7f16\u7801\u7684BSD\u8bb8\u53ef\u7684\u6b63\u5219\u8868\u8fbe\u5f0f\u5e93\u3002\r\n\r\nOniguruma\u4e2d\u7684regexec.c\u4e2d\u7684search_in_range\u51fd\u6570\u5b58\u5728\u6574\u6570\u6ea2\u51fa\u6f0f\u6d1e\uff0c\u8fdc\u7a0b\u653b\u51fb\u8005\u53ef\u901a\u8fc7\u7279\u5236\u6b63\u5219\u8868\u8fbe\u5f0f\u5229\u7528\u8be5\u6f0f\u6d1e\u5bfc\u81f4\u8d8a\u754c\u8bfb\u53d6\uff0c\u4ece\u800c\u53ef\u5bfc\u81f4\u62d2\u7edd\u670d\u52a1\u6216\u4fe1\u606f\u6cc4\u9732\uff0c\u6216\u53ef\u80fd\u9020\u6210\u5176\u4ed6\u5f71\u54cd\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": "Oniguruma\u6574\u6570\u6ea2\u51fa\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "Oniguruma Oniguruma 6.*\uff0c\u003c6.9.4_rc2"
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2019-19012",
  "serverity": "\u9ad8",
  "submitTime": "2019-11-18",
  "title": "Oniguruma\u6574\u6570\u6ea2\u51fa\u6f0f\u6d1e"
}

CVE-2019-19012 (GCVE-0-2019-19012)

Vulnerability from cvelistv5 – Published: 2019-11-16 15:30 – Updated: 2024-08-05 02:02

Summary

An integer overflow in the search_in_range function in regexec.c in Oniguruma 6.x before 6.9.4_rc2 leads to an out-of-bounds read, in which the offset of this read is under the control of an attacker. (This only affects the 32-bit compiled version). Remote attackers can cause a denial-of-service or information disclosure, or possibly have unspecified other impact, via a crafted regular expression.

Severity

No CVSS data available.

CWE

Assigner

mitre mitre root

References

7 references

URL	Tags
https://github.com/kkos/oniguruma/issues/164	x_refsource_MISC
https://github.com/kkos/oniguruma/releases/tag/v6…	x_refsource_MISC
https://github.com/tarantula-team/CVE-2019-19012	x_refsource_MISC
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisoryx_refsource_FEDORA
https://lists.debian.org/debian-lts-announce/2019…	mailing-listx_refsource_MLIST
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisoryx_refsource_FEDORA
https://usn.ubuntu.com/4460-1/	vendor-advisoryx_refsource_UBUNTU

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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.