PT-2021-18746 · Podofo+2 · Podofo+2

Guilherme De Almeida Suckevicz · Published 2021-05-26 · Updated 2023-09-19 · CVE-2021-30472

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 PoDoFo version 0.9.7

Description A flaw was found in the PdfEncryptMD5Base::ComputeOwnerKey function in PdfEncrypt.cpp, which allows for a stack-based buffer overflow due to an improper check of the keyLength value.

Recommendations For PoDoFo version 0.9.7, consider restricting access to the PdfEncryptMD5Base::ComputeOwnerKey function until a patch is available. As a temporary workaround, avoid using the keyLength value in the affected function to minimize the risk of exploitation. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Buffer Overflow

Memory Corruption

Weakness Enumeration

CWE-119

CWE-787

Related Identifiers

ALT-PU-2023-4738

ALT-PU-2023-5043

ALT-PU-2023-5421

ALT-PU-2023-5585

CVE-2021-30472

Affected Products

Alt Linux

Debian

Podofo

References · 10

• 🔥 https://bugzilla.redhat.com/show_bug.cgi?id=1947458 · Exploit
• https://osv.dev/vulnerability/CVE-2021-30472 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2021-30472 · Vendor Advisory
• https://ubuntu.com/security/CVE-2021-30472 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2021-30472 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2021-30472 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-30472 · Security Note
• https://cve.org/CVERecord?id=CVE-2021-30472 · Security Note
• https://t.me/cvenotify/15806 · Telegram Post
• https://sourceforge.net/p/podofo/tickets/132 · Note