CVE-2019-6256 describes a critical Denial of Service vulnerability in the LIVE555 Streaming Media libraries, specifically affecting Live555 Media Server 0.93 and various Debian distributions. An attacker can crash the RTSPServer by sending specially crafted x-sessioncookie HTTP headers in GET and POST requests within the same TCP session, exploiting an incorrect virtual function pointer call. This vulnerability has a CVSS score of 9.8 (Critical), indicating a network-exploitable flaw with low attack complexity and high impact on availability, confidentiality, and integrity. While no active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion has been observed, its high severity warrants attention.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
0.93CPE matchmatch criteria | cpe:2.3:a:live555:live555_media_server:0.93:*:*:*:*:*:*:* | ||
8.0CPE matchmatch criteria | cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:* | ||
9.0CPE matchmatch criteria | cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* |
CVSS version used by this source: 3.0
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
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The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
Remediation records are not available for this CVE.