CVE-2020-6078: Unchecked Return Value

An exploitable denial-of-service vulnerability exists in the message-parsing functionality of Videolabs libmicrodns 0.1.0. When parsing mDNS messages in mdnsrecv, the return value of the mdnsreadheader function is not checked, leading to an uninitialized variable usage that eventually results in ...

Vulnerability Spotlight: Multiple vulnerabilities in Videolabs libmicrodns

Claudio Bozzato of Cisco Talos discovered these vulnerabilities. Blog by Jon Munshaw. A specific library in the Videolabs family of software contains multiple vulnerabilities that could lead to denial of service and code execution. Videolabs is a company founded by VideoLAN members and is the...

Videolabs libmicrodns 0.1.0 message-parsing bounds denial-of-service vulnerability

Summary An exploitable denial-of-service vulnerability exists in the message-parsing functionality of Videolabs libmicrodns 0.1.0. When parsing mDNS messages, the implementation does not properly keep track of the available data in the message, possibly leading to an out-of-bounds read that would...

Videolabs libmicrodns 0.1.0 resource allocation denial-of-service vulnerabilities

Summary Multiple exploitable denial-of-service vulnerabilities exist in the resource allocation handling of Videolabs libmicrodns 0.1.0. When encountering errors while parsing mDNS messages, some allocated data is not freed, possibly leading to a denial-of-service condition via resource exhaustio...

Videolabs libmicrodns 0.1.0 resource record recursive label uncompression denial-of-service vulnerability

Summary An exploitable denial-of-service vulnerability exists in the resource record-parsing functionality of Videolabs libmicrodns 0.1.0. When parsing compressed labels in mDNS messages, the compression pointer is followed without checking for recursion, leading to a denial of service. An attack...

Videolabs libmicrodns 0.1.0 TXT record RDATA-parsing denial-of-service vulnerability

Summary An exploitable denial-of-service vulnerability exists in the TXT record-parsing functionality of Videolabs libmicrodns 0.1.0. When parsing the RDATA section in a TXT record in mDNS messages, multiple integer overflows can be triggered, leading to a denial of service. An attacker can send ...

Videolabs libmicrodns 0.1.0 rr_decode return value remote code execution vulnerability

Summary An exploitable code execution vulnerability exists in the label-parsing functionality of Videolabs libmicrodns 0.1.0. When parsing compressed labels in mDNS messages, the rrdecode function’s return value is not checked, leading to a double free that could be exploited to execute arbitrary...

Videolabs libmicrodns 0.1.0 mdns_recv return value denial-of-service vulnerability

Summary An exploitable denial-of-service vulnerability exists in the message-parsing functionality of Videolabs libmicrodns 0.1.0. When parsing mDNS messages in mdnsrecv, the return value of the mdnsreadheader function is not checked, leading to an uninitialized variable usage that eventually...

CVE-2020-3182

A vulnerability in the multicast DNS mDNS protocol configuration of Cisco Webex Meetings Client for MacOS could allow an unauthenticated adjacent attacker to obtain sensitive information about the device on which the Webex client is running. The vulnerability exists because sensitive information ...

Information disclosure

A vulnerability in the multicast DNS mDNS protocol configuration of Cisco Webex Meetings Client for MacOS could allow an unauthenticated adjacent attacker to obtain sensitive information about the device on which the Webex client is running. The vulnerability exists because sensitive information ...

CVE-2020-3182 Cisco Webex Meetings Client for MacOS Information Disclosure Vulnerability

A vulnerability in the multicast DNS mDNS protocol configuration of Cisco Webex Meetings Client for MacOS could allow an unauthenticated adjacent attacker to obtain sensitive information about the device on which the Webex client is running. The vulnerability exists because sensitive information ...

CVE-2020-3182 Cisco Webex Meetings Client for MacOS Information Disclosure Vulnerability

A vulnerability in the multicast DNS mDNS protocol configuration of Cisco Webex Meetings Client for MacOS could allow an unauthenticated adjacent attacker to obtain sensitive information about the device on which the Webex client is running. The vulnerability exists because sensitive information ...

CVE-2020-3182

Cisco Webex Meetings Client for MacOS is affected by an information-disclosure vulnerability in the mDNS configuration. An unauthenticated adjacent attacker can exploit this by issuing an mDNS query for a specific service to obtain device information from affected Webex clients. The issue is docu...

Cisco Webex Meetings Client for MacOS Information Disclosure Vulnerability

A vulnerability in the multicast DNS mDNS protocol configuration of Cisco Webex Meetings Client for MacOS could allow an unauthenticated adjacent attacker to obtain sensitive information about the device on which the Webex client is running. The vulnerability exists because sensitive information ...

CVE-2020-3182: Exposure of Sensitive Information to an Unauthorized Actor

A vulnerability in the multicast DNS mDNS protocol configuration of Cisco Webex Meetings Client for MacOS could allow an unauthenticated adjacent attacker to obtain sensitive information about the device on which the Webex client is running. The vulnerability exists because sensitive information ...

PT-2020-1954

Name of the Vulnerable Software and Affected Versions Cisco Webex Meetings Client for MacOS affected versions not specified Description A vulnerability in the multicast DNS mDNS protocol configuration could allow an unauthenticated adjacent attacker to obtain sensitive information about the devic...

CVE-2018-4002

An exploitable denial-of-service vulnerability exists in the mdnscap binary of the CUJO Smart Firewall running firmware 7003. When parsing labels in mDNS packets, the firewall unsafely handles label compression pointers, leading to an uncontrolled recursion that eventually exhausts the stack,...

Denial of service

An exploitable denial-of-service vulnerability exists in the mdnscap binary of the CUJO Smart Firewall running firmware 7003. When parsing labels in mDNS packets, the firewall unsafely handles label compression pointers, leading to an uncontrolled recursion that eventually exhausts the stack,...

CVE-2018-4002

An exploitable denial-of-service vulnerability exists in the mdnscap binary of the CUJO Smart Firewall running firmware 7003. When parsing labels in mDNS packets, the firewall unsafely handles label compression pointers, leading to an uncontrolled recursion that eventually exhausts the stack,...

CVE-2018-4002

The CVE-2018-4002 issue affects CUJO Smart Firewall (firmware 7003) mdnscap, where mdnscap’s mDNS label parsing mishandles compression pointers, creating an uncontrolled recursion that exhausts the call stack and crashes the mdnscap process. An unauthenticated remote attacker can send specially c...