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AlienVault OTX Vulnerabilities

AlienVault OTX Malware

ncurses

ncurses before 6.4 20230408, when used by a setuid application, allows local users to trigger security-relevant memory corruption via malformed data in a terminfo database file that is found in $HOME/.terminfo or reached via the TERMINFO or TERM environment variable.

CVE-2023-29491 is a vulnerability in the ncurses library prior to version 6.4 (released 2023-04-08) that affects setuid applications using ncurses for terminal handling. Ncurses relies on terminfo database files to determine terminal capabilities. This vulnerability occurs when a local user supplies malformed data in a terminfo database file located in their home directory ($HOME/.terminfo) or referenced through the TERMINFO or TERM environment variables. When a setuid application uses ncurses to process these files, the malformed data can trigger memory corruption, which is security-relevant and may lead to privilege escalation. Since setuid applications run with elevated privileges, exploiting this flaw could allow a local attacker to execute arbitrary code with higher privileges. The vulnerability requires local access and the ability to influence environment variables or place crafted terminfo files. No CVSS score has been assigned yet, and no exploits are publicly known. The flaw is significant because ncurses is widely used in Unix-like systems, and many setuid applications depend on it for terminal handling. The vulnerability highlights the risk of processing untrusted input in privileged contexts. The patch involves updating ncurses to version 6.4 or later, which corrects the memory corruption issue by properly validating terminfo data. Until patched, restricting user control over environment variables and terminfo files can reduce risk.

Detailed information about CVE-2023-29491: n/a. Get real-time updates, technical details, and mitigation strategies.

CVE-2023-29491: n/a - Live Threat Intelligence - Threat Radar | OffSeq.com

CVE-2023-29491: n/a

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