Vulnerability-Lookup

CNVD-2019-10132

Vulnerability from cnvd - Published: 2019-04-17

Title

libcurl缓冲区溢出漏洞

Description

libcurl是一个免费且易于使用的客户端URL传输库。 Libcurl 7.15.4 - 7.61.0中的lib/curl_ntlm_core.c中的Curl_ntlm_core_mk_nt_hash()存在缓冲区溢出漏洞。远程用户可通过发送特制NTLM认证密码利用该漏洞在目标系统上执行任意代码。

Severity

高

Patch Name

libcurl缓冲区溢出漏洞的补丁

Patch Description

libcurl是一个免费且易于使用的客户端URL传输库。 Libcurl 7.15.4 - 7.61.0中的lib/curl_ntlm_core.c中的Curl_ntlm_core_mk_nt_hash()存在缓冲区溢出漏洞。远程用户可通过发送特制NTLM认证密码利用该漏洞在目标系统上执行任意代码。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

厂商已发布漏洞修复程序，请及时关注更新： https://github.com/curl/curl/commit/57d299a499155d4b327e341c6024e293b0418243.patch

Reference

https://curl.haxx.se/docs/CVE-2018-14618.html

Impacted products

Name
['PHP libcURL 7.15.4 - 7.61.0', 'Haxx Libcurl >=7.15.4，<=7.61.0']

Show details on source website

JSON

To clipboard

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CVE-2018-14618 (GCVE-0-2018-14618)

Vulnerability from cvelistv5 – Published: 2018-09-05 19:00 – Updated: 2026-04-15 20:54

Summary

curl before version 7.61.1 is vulnerable to a buffer overrun in the NTLM authentication code. The internal function Curl_ntlm_core_mk_nt_hash multiplies the length of the password by two (SUM) to figure out how large temporary storage area to allocate from the heap. The length value is then subsequently used to iterate over the password and generate output into the allocated storage buffer. On systems with a 32 bit size_t, the math to calculate SUM triggers an integer overflow when the password length exceeds 2GB (2^31 bytes). This integer overflow usually causes a very small buffer to actually get allocated instead of the intended very huge one, making the use of that buffer end up in a heap buffer overflow. (This bug is almost identical to CVE-2017-8816.)

Severity

7.5 (High)


                        
                          CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-04-15 20:54 UTC

CWE

Assigner

redhat redhat root

References

11 references

URL	Tags
https://curl.haxx.se/docs/CVE-2018-14618.html	x_refsource_CONFIRM
https://security.gentoo.org/glsa/201903-03	vendor-advisoryx_refsource_GENTOO
https://usn.ubuntu.com/3765-1/	vendor-advisoryx_refsource_UBUNTU
https://access.redhat.com/errata/RHSA-2018:3558	vendor-advisoryx_refsource_REDHAT
https://psirt.global.sonicwall.com/vuln-detail/SN…	x_refsource_CONFIRM
https://www.debian.org/security/2018/dsa-4286	vendor-advisoryx_refsource_DEBIAN
http://www.securitytracker.com/id/1041605	vdb-entryx_refsource_SECTRACK
https://usn.ubuntu.com/3765-2/	vendor-advisoryx_refsource_UBUNTU
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2…	x_refsource_CONFIRM
https://cert-portal.siemens.com/productcert/pdf/s…	x_refsource_CONFIRM
https://access.redhat.com/errata/RHSA-2019:1880	vendor-advisoryx_refsource_REDHAT

Impacted products

1 product

Vendor	Product	Version
[UNKNOWN]	curl	Affected: 7.61.1

Date Public

2018-09-05 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.

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-2019-10132

CVE-2018-14618 (GCVE-0-2018-14618)

Tags

Sightings

Nomenclature

Related by attack behaviour