Vulnerability-Lookup

CNVD-2025-12277

Vulnerability from cnvd - Published: 2025-06-12

Title

GNU C Library缓冲区溢出漏洞

Description

GNU C Library是GNU社区的一种按照LGPL许可协议发布的开源免费的C语言编译程序。 GNU C Library存在缓冲区溢出漏洞，该漏洞源于assert函数失败时未分配足够的空间给断言失败消息字符串和大小信息。攻击者可利用该漏洞导致拒绝服务。

Severity

高

Patch Name

GNU C Library缓冲区溢出漏洞的补丁

Patch Description

GNU C Library是GNU社区的一种按照LGPL许可协议发布的开源免费的C语言编译程序。 GNU C Library存在缓冲区溢出漏洞，该漏洞源于assert函数失败时未分配足够的空间给断言失败消息字符串和大小信息。攻击者可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

目前厂商已发布升级程序修复该安全问题，详情见厂商官网： https://www.gnu.org/software/libc/#download

Reference

https://sourceware.org/bugzilla/show_bug.cgi?id=32582https://www.openwall.com/lists/oss-security/2025/01/22/4https://sourceware.org/pipermail/libc-announce/2025/000044.htmlhttps://sourceware.org/git/?p=glibc.git;a=blob;f=advisories/GLIBC-SA-2025-0001https://access.redhat.com/security/cve/cve-2025-0395https://nvd.nist.gov/vuln/detail/CVE-2025-0395

Impacted products

Name
Gnu GNU C Library >=2.13，<=2.40

Show details on source website

JSON

To clipboard

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CVE-2025-0395 (GCVE-0-2025-0395)

Vulnerability from cvelistv5 – Published: 2025-01-22 13:11 – Updated: 2026-05-12 12:02

Summary

When the assert() function in the GNU C Library versions 2.13 to 2.40 fails, it does not allocate enough space for the assertion failure message string and size information, which may lead to a buffer overflow if the message string size aligns to page size.

Severity

6.2 (Medium)


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

SSVC

Exploitation: poc Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-02-04 20:45 UTC

CWE

CWE-131 - Incorrect Calculation of Buffer Size

Assigner

glibc redhat root

References

12 references

URL	Tags
https://www.openwall.com/lists/oss-security/2025/…
https://sourceware.org/bugzilla/show_bug.cgi?id=32582
https://sourceware.org/git/?p=glibc.git;a=blob;f=…
https://sourceware.org/pipermail/libc-announce/20…
http://www.openwall.com/lists/oss-security/2025/01/22/4
http://www.openwall.com/lists/oss-security/2025/01/23/2
https://security.netapp.com/advisory/ntap-2025022…
http://www.openwall.com/lists/oss-security/2025/04/13/1
http://www.openwall.com/lists/oss-security/2025/04/24/7
https://lists.debian.org/debian-lts-announce/2025…
https://cert-portal.siemens.com/productcert/html/…
https://cert-portal.siemens.com/productcert/html/…

Impacted products

15 products

Vendor	Product	Version
The GNU C Library	glibc	Affected: 2.13 , ≤ 2.40 (custom)
Siemens	RUGGEDCOM ROX MX5000	Affected: 0 , < V2.17.1 (custom)
Siemens	RUGGEDCOM ROX MX5000RE	Affected: 0 , < V2.17.1 (custom)
Siemens	RUGGEDCOM ROX RX1400	Affected: 0 , < V2.17.1 (custom)
Siemens	RUGGEDCOM ROX RX1500	Affected: 0 , < V2.17.1 (custom)
Siemens	RUGGEDCOM ROX RX1501	Affected: 0 , < V2.17.1 (custom)
Siemens	RUGGEDCOM ROX RX1510	Affected: 0 , < V2.17.1 (custom)
Siemens	RUGGEDCOM ROX RX1511	Affected: 0 , < V2.17.1 (custom)
Siemens	RUGGEDCOM ROX RX1512	Affected: 0 , < V2.17.1 (custom)
Siemens	RUGGEDCOM ROX RX1524	Affected: 0 , < V2.17.1 (custom)
Siemens	RUGGEDCOM ROX RX1536	Affected: 0 , < V2.17.1 (custom)
Siemens	RUGGEDCOM ROX RX5000	Affected: 0 , < V2.17.1 (custom)
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)

Credits

Qualys Security Advisory

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.