PT-2021-21282 · Giflib · Giflib

Marsman1996 · Published 2021-08-27 · Updated 2021-09-07 · CVE-2021-36531

Positive Technologies (AI Summary)

CVSS v3.1

8.8

High

Base vector

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

Name of the Vulnerable Software and Affected Versions ngiflib version 0.4

Description The issue is related to a heap overflow in the GetByte() function at ngiflib.c:70 when operating in NGIFLIB NO FILE mode. This occurs because GetByte() reads from a memory buffer without properly checking its boundaries.

Recommendations For ngiflib version 0.4, consider applying a patch or fix that properly bounds the memory buffer read by the GetByte() function to prevent the heap overflow. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Memory Corruption

Weakness Enumeration

CWE-787

Related Identifiers

CVE-2021-36531

Affected Products

Giflib

References · 4

• 🔥 https://github.com/miniupnp/ngiflib/issues/18 · Exploit
• https://osv.dev/vulnerability/CVE-2021-36531 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-36531 · Security Note
• https://t.me/cvenotify/20265 · Telegram Post