PT-2021-19364 · Opentext · Opentext Brava! Desktop

Rgod · Published 2021-06-02 · Updated 2023-10-03 · CVE-2021-31483

Positive Technologies (AI Summary)

CVSS v3.1

7.8

High

Base vector

AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions OpenText Brava! Desktop version 16.6.3.84

Description This issue allows remote attackers to execute arbitrary code on affected installations. User interaction is required, where the target must visit a malicious page or open a malicious file. The flaw exists within the parsing of DWF files due to the lack of proper validation of the length of user-supplied data prior to copying it to a fixed-length heap-based buffer. An attacker can leverage this to execute code in the context of the current process.

Recommendations For OpenText Brava! Desktop version 16.6.3.84, consider restricting the parsing of DWF files until a patch is available. As a temporary workaround, avoid opening files from untrusted sources to minimize the risk of exploitation. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Heap Based Buffer Overflow

Weakness Enumeration

CWE-122

Related Identifiers

CVE-2021-31483

ZDI-21-623

Affected Products

Opentext Brava! Desktop

References · 5

• https://osv.dev/vulnerability/CVE-2021-31483 · Vendor Advisory
• https://zerodayinitiative.com/advisories/ZDI-21-623 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2021-31483 · Security Note
• https://opentext.com/products/brava · Note
• https://cvedetails.com/vulnerability-list/vendor_id-2032/product_id-96672/Opentext-Brava-Desktop.html?page=1&opec=1&order=1&trc=35&sha=37f4ed0596f8ccacca7d571f22a38c97b0f19f4c · Note