Headline
CVE-2021-31506: ZDI-21-647
This vulnerability allows remote attackers to disclose sensitive information on affected installations of OpenText Brava! Desktop Build 16.6.4.55. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the parsing of PDF files. 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 data structure. An attacker can leverage this in conjunction with other vulnerabilities to execute arbitrary code in the context of the current process. Was ZDI-CAN-13674.
June 7th, 2021
OpenText Brava! Desktop PDF File Parsing Out-Of-Bounds Read Information Disclosure Vulnerability****ZDI-21-647
ZDI-CAN-13674
CVE ID
CVE-2021-31506
CVSS SCORE
3.3, (AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N)
AFFECTED VENDORS
OpenText
AFFECTED PRODUCTS
Brava! Desktop
VULNERABILITY DETAILS
This vulnerability allows remote attackers to disclose sensitive information on affected installations of OpenText Brava! Desktop. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file.
The specific flaw exists within the parsing of PDF files. 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 data structure. An attacker can leverage this in conjunction with other vulnerabilities to execute arbitrary code in the context of the current process.
ADDITIONAL DETAILS
Fixed in version 16.6.4.92
DISCLOSURE TIMELINE
- 2021-04-16 - Vulnerability reported to vendor
- 2021-06-07 - Coordinated public release of advisory
CREDIT
Michael DePlante (@izobashi) of Trend Micro’s Zero Day Initiative
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