PT-2021-5389 · Foxit · Foxit Pdf Reader+1

Cor3Sm4Sh3R · Published 2021-10-15 · Updated 2024-05-08 · CVE-2021-34958

Positive Technologies (AI Summary)

CVSS v2.0

10

High

Base vector

AV:N/AC:L/Au:N/C:C/I:C/A:C

Name of the Vulnerable Software and Affected Versions Foxit PDF Reader and Foxit PDF Editor (affected versions not specified)

Description The issue is caused by a buffer overflow in memory, allowing a remote attacker to execute arbitrary code on the target system by opening a specially crafted malicious PDF file. The specific flaw exists within the handling of Annotation objects, resulting from the lack of validation of an object's existence prior to performing operations on it. This vulnerability requires user interaction, such as visiting a malicious page or opening a malicious file, to be exploited. An attacker can leverage this vulnerability to execute code in the context of the current process.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

RCE

Buffer Overflow

Use After Free

Weakness Enumeration

CWE-119

CWE-416

Related Identifiers

BDU:2021-06228

CVE-2021-34958

ZDI-21-1189

Affected Products

Foxit Pdf Editor

Foxit Pdf Reader

References · 10

• https://zerodayinitiative.com/advisories/ZDI-21-1189 · Security Note
• https://safe-surf.ru/specialists/bulletins-nkcki/671771 · Security Note
• https://foxit.com/support/security-bulletins.html · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-34958 · Security Note
• https://safe-surf.ru/upload/VULN/VULN-20211130.5.pdf · Security Note
• https://osv.dev/vulnerability/CVE-2021-34958 · Vendor Advisory
• https://bdu.fstec.ru/vul/2021-06228 · Security Note
• https://twitter.com/CVEnew/status/1788295963758796912 · Twitter Post
• https://t.me/cvenotify/79514 · Telegram Post
• https://cybersecurity-help.cz/vdb/SB2021112906 · Note