PT-2021-4838 · Adobe · Svg-Native-Viewer

Published 2021-09-14 · Updated 2021-10-04 · CVE-2021-39823

Positive Technologies (AI Summary)

CVSS v2.0

9.3

High

Base vector

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

Name of the Vulnerable Software and Affected Versions Adobe svg-native-viewer versions 8182d14dfad5d1e10f53ed830328d7d9a3cfa96d and earlier

Description The issue is related to a heap buffer overflow vulnerability due to insecure handling of a malicious .svg file. This could potentially result in arbitrary code execution in the context of the current user. User interaction is required to exploit this vulnerability. The vulnerability can be exploited by a remote attacker using a specially crafted file, potentially allowing them to execute arbitrary code.

Recommendations For Adobe svg-native-viewer versions 8182d14dfad5d1e10f53ed830328d7d9a3cfa96d and earlier, consider avoiding the use of .svg files from untrusted sources until a patch is available. As a temporary workaround, restrict the handling of .svg files to minimize the risk of exploitation.

Fix

Heap Based Buffer Overflow

Weakness Enumeration

CWE-122

Related Identifiers

BDU:2021-05566

CVE-2021-39823

Affected Products

Svg-Native-Viewer

References · 6

• https://bdu.fstec.ru/vul/2021-05566 · Security Note
• https://osv.dev/vulnerability/CVE-2021-39823 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-39823 · Security Note
• https://helpx.adobe.com/security/products/svg-native-viewer/apsb21-72.html · Vendor Advisory
• https://github.com/adobe/svg-native-viewer/commit/b79ecc37b2572b27aa8ff93de67ffa55828e4df8 · Note
• https://t.me/cibsecurity/29508 · Telegram Post