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CVE-2019-3823

Quick assessment

Affected
The curl Project curl
Exploitation
High exploitation probability; assess promptly
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Haxx libcurl是瑞典Haxx公司的一筐开源的客户端URL传输库。该产品支持FTP、SFTP、TFTP和HTTP等协议。 Haxx libcurl 7.36.0版本至7.64.0版本中存在越界读取漏洞。该漏洞源于网络系统或产品在内存上执行操作时，未正确验证数据边界，导致向关联的其他内存位置上执行了错误的读写操作。攻击者可利用该漏洞导致缓冲区溢出或堆溢出等。

AI Predicted 5.5 Difficulty: Hard EPSS 4.29% · P91

Possible ATT&CK Techniques 1 AI

T1195 · Supply Chain Compromise
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I. Basic Information for CVE-2019-3823

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
libcurl versions from 7.34.0 to before 7.64.0 are vulnerable to a heap out-of-bounds read in the code handling the end-of-response for SMTP. If the buffer passed to `smtp_endofresp()` isn't NUL terminated and contains no character ending the parsed number, and `len` is set to 5, then the `strtol()` call reads beyond the allocated buffer. The read contents will not be returned to the caller.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
跨界内存读
Source: CVE Program / CVE List V5
Vulnerability Title
Haxx libcurl 缓冲区错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Haxx libcurl是瑞典Haxx公司的一筐开源的客户端URL传输库。该产品支持FTP、SFTP、TFTP和HTTP等协议。 Haxx libcurl 7.36.0版本至7.64.0版本中存在越界读取漏洞。该漏洞源于网络系统或产品在内存上执行操作时，未正确验证数据边界，导致向关联的其他内存位置上执行了错误的读写操作。攻击者可利用该漏洞导致缓冲区溢出或堆溢出等。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
The curl Project curl 7.64.0 -

II. Public POCs for CVE-2019-3823

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III. Intelligence Information for CVE-2019-3823

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Vendor Advisories for CVE-2019-3823 (9)

Mailing List Discussions for CVE-2019-3823 (1)

Other References for CVE-2019-3823 (1)

Same Patch Batch · The curl Project · 2019-02-06 · 3 CVEs total

CVE-2018-16890 Haxx libcurl 缓冲区错误漏洞
CVE-2019-3822 Haxx libcurl 缓冲区错误漏洞

IV. Related Vulnerabilities

Same product: curl
Same vendor: The curl Project
Same weakness: CWE-125

V. Comments for CVE-2019-3823

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