CVE-2019-14842
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I. Basic Information for CVE-2019-14842
Vulnerability Information
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Vulnerability Title
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Description
Structured reply is a feature of the newstyle NBD protocol allowing the server to send a reply in chunks. A bounds check which was supposed to test for chunk offsets smaller than the beginning of the request did not work because of signed/unsigned confusion. If one of these chunks contains a negative offset then data under control of the server is written to memory before the read buffer supplied by the client. If the read buffer is located on the stack then this allows the stack return address from nbd_pread() to be trivially modified, allowing arbitrary code execution under the control of the server. If the buffer is located on the heap then other memory objects before the buffer can be overwritten, which again would usually lead to arbitrary code execution.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
数值类型间的不正确转换
Source: NVD (National Vulnerability Database)
Vulnerability Title
libnbd 输入验证错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
libnbd是一款用于编辑NBD（Network Block Device）客户端的库。 libnbd中存在输入验证错误漏洞。攻击者可利用该漏洞执行任意代码。
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
II. Public POCs for CVE-2019-14842
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|---|
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- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-14842x_refsource_CONFIRM
- https://nvd.nist.gov/vuln/detail/CVE-2019-14842
Same Patch Batch · [UNKNOWN] · 2019-11-26 · 5 CVEs total
| CVE-2019-14856 | Ansible 授权问题漏洞 | |
| CVE-2019-14853 | python-ecdsa 安全漏洞 | |
| CVE-2019-14857 | ZmartZone IAM mod_auth_openidc 输入验证错误漏洞 | |
| CVE-2019-14890 | Ansible Tower 安全漏洞 |
IV. Related Vulnerabilities
Same weakness: CWE-681
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leancrypto: Integer truncation in X.509 name parser enables - CVE-2026-34550
iccDEV: UB at IccIO.cpp
V. Comments for CVE-2019-14842
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