PT-2017-14528 · Swftools · Swftools

Yoya · Published 2017-11-09 · Updated 2017-11-27 · CVE-2017-16711

Positive Technologies (AI Summary)

CVSS v3.1

5.5

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions SWFTools version 0.9.2

Description The issue is related to the swf DefineLosslessBitsTagToImage function in lib/modules/swfbits.c, which mishandles an uncompress failure. This can be exploited by remote attackers to cause a denial of service, resulting in a NULL pointer dereference and application crash. The issue is linked to the extractDefinitions function in lib/readers/swf.c and the fill line bitmap function in lib/devices/render.c.

Recommendations For SWFTools version 0.9.2, consider applying a patch or fix that addresses the uncompress failure handling in the swf DefineLosslessBitsTagToImage function to prevent the denial of service. As a temporary workaround, restrict the use of the swfrender tool to minimize the risk of exploitation.

Fix

NULL Pointer Dereference

Weakness Enumeration

CWE-476

Related Identifiers

CVE-2017-16711

Affected Products

Swftools

References · 7

• https://osv.dev/vulnerability/UBUNTU-CVE-2017-16711 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2017-16711 · Security Note
• https://osv.dev/vulnerability/CVE-2017-16711 · Vendor Advisory
• https://ubuntu.com/security/CVE-2017-16711 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2017-16711 · Security Note
• https://github.com/matthiaskramm/swftools/issues/46 · Note
• http://securityfocus.com/bid/101797 · Note