Vulnerability Details CVE-2020-27539
Heap overflow with full parsing of HTTP respose in Rostelecom CS-C2SHW 5.0.082.1. AgentUpdater service has a self-written HTTP parser and builder. HTTP parser has a heap buffer overflow (OOB write). In default configuration camera parses responses only from HTTPS URLs from config file, so vulnerable code is unreachable and one more bug required to reach it.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.006
EPSS Ranking 68.3%
CVSS Severity
CVSS v3 Score 9.8
CVSS v2 Score 7.5
References
Products affected by CVE-2020-27539
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cpe:2.3:h:company:cs-c2shw:-
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cpe:2.3:o:company:cs-c2shw_firmware:5.0.082.1