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zdiNguyen Hoang Thach (https://twitter.com/hi_im_d4rkn3ss) and Billy Jheng Bing-Jhong (https://twitter.com/st424204)ZDI-22-245
HistoryFeb 01, 2022 - 12:00 a.m.

(Pwn2Own) Samba fruit_pread Out-Of-Bounds Read Information Disclosure Vulnerability

2022-02-0100:00:00
Nguyen Hoang Thach (https://twitter.com/hi_im_d4rkn3ss) and Billy Jheng Bing-Jhong (https://twitter.com/st424204)
www.zerodayinitiative.com
21

0.18 Low

EPSS

Percentile

96.2%

This vulnerability allows remote attackers to disclose sensitive information on affected installations of Samba. Authentication is not required to exploit this vulnerability. The specific flaw exists within the fruit_pread method. The issue results from the lack of proper validation of user-supplied data, which can result in a read past the end of an allocated buffer. An attacker can leverage this in conjunction with other vulnerabilities to execute arbitrary code in the context of root.