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CVE-2016-9938

EPSS 1.42% · P81
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I. Basic Information for CVE-2016-9938

Vulnerability Information
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Vulnerability Title
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Description
An issue was discovered in Asterisk Open Source 11.x before 11.25.1, 13.x before 13.13.1, and 14.x before 14.2.1 and Certified Asterisk 11.x before 11.6-cert16 and 13.x before 13.8-cert4. The chan_sip channel driver has a liberal definition for whitespace when attempting to strip the content between a SIP header name and a colon character. Rather than following RFC 3261 and stripping only spaces and horizontal tabs, Asterisk treats any non-printable ASCII character as if it were whitespace. This means that headers such as Contact\x01: will be seen as a valid Contact header. This mostly does not pose a problem until Asterisk is placed in tandem with an authenticating SIP proxy. In such a case, a crafty combination of valid and invalid To headers can cause a proxy to allow an INVITE request into Asterisk without authentication since it believes the request is an in-dialog request. However, because of the bug described above, the request will look like an out-of-dialog request to Asterisk. Asterisk will then process the request as a new call. The result is that Asterisk can process calls from unvetted sources without any authentication. If you do not use a proxy for authentication, then this issue does not affect you. If your proxy is dialog-aware (meaning that the proxy keeps track of what dialogs are currently valid), then this issue does not affect you. If you use chan_pjsip instead of chan_sip, then this issue does not affect you.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Title
Digium Asterisk Open Source 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Digium Asterisk Open Source是美国Digium公司的一套开源的电话交换机（PBX）系统软件。该软件支持语音信箱、多方语音会议、交互式语音应答(IVR)等。 Digium Asterisk Open Source中存在安全漏洞。攻击者可利用该漏洞执行未授权的操作。
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

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II. Public POCs for CVE-2016-9938

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III. Intelligence Information for CVE-2016-9938

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Same Patch Batch · n/a · 2016-12-12 · 34 CVEs total

CVE-2016-9626w3m 安全漏洞
CVE-2016-9440w3m 安全漏洞
CVE-2016-9441w3m 安全漏洞
CVE-2016-9442w3m 安全漏洞
CVE-2016-9443w3m 安全漏洞
CVE-2016-9622w3m 安全漏洞
CVE-2016-9623w3m 安全漏洞
CVE-2016-9624w3m 安全漏洞
CVE-2016-9625w3m 安全漏洞
CVE-2016-9439w3m 安全漏洞
CVE-2016-9627w3m 缓冲区溢出漏洞
CVE-2016-9628w3m 安全漏洞
CVE-2016-9629w3m 安全漏洞
CVE-2016-9630w3m 缓存区溢出漏洞
CVE-2016-9631w3m 安全漏洞
CVE-2016-9632w3m 缓冲区溢出漏洞
CVE-2016-9633w3m 安全漏洞
CVE-2016-9937Digium Asterisk Open Source 安全漏洞
CVE-2016-9438w3m 安全漏洞
CVE-2016-9437w3m 安全漏洞

Showing top 20 of 34 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

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Same vendor: n/a

V. Comments for CVE-2016-9938

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