PT-2020-2144 · Videolan+2 · Vlc Media Player+2
Claudio Bozzato
·
Published
2020-03-24
·
Updated
2025-01-28
·
CVE-2020-6072
CVSS v3.1
9.8
Critical
| Vector | AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
Name of the Vulnerable Software and Affected Versions
Videolabs libmicrodns version 0.1.0
Description
The issue is related to a buffer overflow in the microdns library of the VideoLAN VLC media player, allowing a remote attacker to cause a denial of service or execute arbitrary code using a specially crafted request. The vulnerability is also described as an exploitable code execution issue in the label-parsing functionality of libmicrodns. When parsing compressed labels in mDNS messages, the
rr decode function's return value is not checked, leading to a double free that could be exploited to execute arbitrary code. An attacker can send an mDNS message to trigger this vulnerability.Recommendations
For Videolabs libmicrodns version 0.1.0, consider disabling the
rr decode function as a temporary workaround until a patch is available. Restrict access to the vulnerable label-parsing functionality to minimize the risk of exploitation. Avoid using the vulnerable microdns library until the issue is resolved. At the moment, there is no information about a newer version that contains a fix for this vulnerability.Exploit
Buffer Overflow
Double Free
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Related Identifiers
Affected Products
Ubuntu
Vlc Media Player
Libmicrodns