Vulnerability-Lookup

CNVD-2019-22423

Vulnerability from cnvd - Published: 2019-07-12

Title

GNU C Library分段错误漏洞

Description

GNU C Library (glibc)是一种按照LGPL许可协议发布的、开源、免费、方便从网络下载的C的编译程序。 GNU C Library 2.28及更早版本存在分段错误漏洞。该漏洞源于当在x32架构上运行时，GNU C Library中的string组件错误地尝试在汇编代码中为size_t使用64位寄存器。攻击者可利用该漏洞导致拒绝服务。

Severity

中

Formal description

厂商尚未提供漏洞修复方案，请关注厂商主页更新： https://www.gnu.org/software/libc/

Reference

https://nvd.nist.gov/vuln/detail/CVE-2019-6488

Impacted products

Name
Gnu C Library <=2.28

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2019-6488"
    }
  },
  "description": "GNU C Library (glibc)\u662f\u4e00\u79cd\u6309\u7167LGPL\u8bb8\u53ef\u534f\u8bae\u53d1\u5e03\u7684\u3001\u5f00\u6e90\u3001\u514d\u8d39\u3001\u65b9\u4fbf\u4ece\u7f51\u7edc\u4e0b\u8f7d\u7684C\u7684\u7f16\u8bd1\u7a0b\u5e8f\u3002\n\nGNU C Library 2.28\u53ca\u66f4\u65e9\u7248\u672c\u5b58\u5728\u5206\u6bb5\u9519\u8bef\u6f0f\u6d1e\u3002\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u5f53\u5728x32\u67b6\u6784\u4e0a\u8fd0\u884c\u65f6\uff0cGNU C Library\u4e2d\u7684string\u7ec4\u4ef6\u9519\u8bef\u5730\u5c1d\u8bd5\u5728\u6c47\u7f16\u4ee3\u7801\u4e2d\u4e3asize_t\u4f7f\u752864\u4f4d\u5bc4\u5b58\u5668\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u5bfc\u81f4\u62d2\u7edd\u670d\u52a1\u3002",
  "discovererName": "unknwon",
  "formalWay": "\u5382\u5546\u5c1a\u672a\u63d0\u4f9b\u6f0f\u6d1e\u4fee\u590d\u65b9\u6848\uff0c\u8bf7\u5173\u6ce8\u5382\u5546\u4e3b\u9875\u66f4\u65b0\uff1a\r\nhttps://www.gnu.org/software/libc/",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2019-22423",
  "openTime": "2019-07-12",
  "products": {
    "product": "Gnu C Library \u003c=2.28"
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2019-6488",
  "serverity": "\u4e2d",
  "submitTime": "2019-01-21",
  "title": "GNU C Library\u5206\u6bb5\u9519\u8bef\u6f0f\u6d1e"
}

CVE-2019-6488 (GCVE-0-2019-6488)

Vulnerability from cvelistv5 – Published: 2019-01-18 19:00 – Updated: 2026-10-14 06:49

Summary

The string component in the GNU C Library (aka glibc or libc6) through 2.28, when running on the x32 architecture, incorrectly attempts to use a 64-bit register for size_t in assembly codes, which can lead to a segmentation fault or possibly unspecified other impact, as demonstrated by a crash in __memmove_avx_unaligned_erms in sysdeps/x86_64/multiarch/memmove-vec-unaligned-erms.S during a memcpy.

Severity

No CVSS data available.

CWE

Assigner

mitre CNA under the mitre root

CNA scorecard E 28/100 over 2325 records in the last 180 days details

References

4 references

URL	Tags
http://www.securityfocus.com/bid/106671	vdb-entryx_refsource_BID
https://sourceware.org/bugzilla/show_bug.cgi?id=24097	x_refsource_MISC
https://security.gentoo.org/glsa/202006-04	vendor-advisoryx_refsource_GENTOO
https://cert-portal.siemens.com/productcert/html/…

Impacted products

3 products

Vendor	Product	Version
Siemens	SIMATIC S7-1500 CPU 1518-4 PN/DP MFP	Affected: V3.1.0 , < V3.1.5 (custom)
Siemens	SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP	Affected: V3.1.0 , < V3.1.5 (custom)
Siemens	SIPLUS S7-1500 CPU 1518-4 PN/DP MFP	Affected: V3.1.0 , < V3.1.5 (custom)

Date Public

2019-01-18 00:00

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.

Vulnerability timeline

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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.
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