CVE-2020-6071

CVE-2020-6071 affects Videolabs libmicrodns 0.1.0, where the mDNS label parsing uses compressed pointers without recursion checks. This can allow a remote attacker to trigger a denial-of-service via crafted mDNS messages that exploit the compression pointer handling. Public references in connecte...

CVE-2020-6071

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 attacker can...

CVE-2020-6071

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 attacker can...

CVE-2020-6073

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 an mDNS...

CVE-2020-6073

CVE-2020-6073 affects Videolabs libmicrodns 0.1.0. A vulnerability in the TXT record parsing functionality (RDATA in TXT records) can trigger multiple integer overflows when processing mDNS messages, leading to a denial of service. Exploitation is possible remotely by sending crafted mDNS traffic...

CVE-2020-6078

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 ...

CVE-2020-6078

libmicrodns 0.1.0 is affected by CVE-2020-6078, where mdns_recv does not validate the return value of mdns_read_header, causing uninitialized variable usage and a null pointer dereference that can crash the service. This is one of multiple mDNS-related issues reported for libmicrodns. Evidence in...

CVE-2020-6078

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 ...

CVE-2020-6077

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 result ...

CVE-2020-6077

Libmicrodns 0.1.0 from Videolabs contains a denial-of-service vulnerability in the mDNS message parsing that can lead to an out-of-bounds read. The issue arises when parsing mDNS messages and not properly tracking available data, enabling an attacker to trigger a crash. Affected component: libmic...

CVE-2020-6077

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 result ...

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 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 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 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 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 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 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 ...