Denial of service in libpng

1) Heap-based buffer overflow

EUVDB-ID: #VU75516

Risk: Low

CVSSv3.1: 4 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L/E:U/RL:U/RC:C]

CVE-ID: CVE-2021-4214

CWE-ID: CWE-122 - Heap-based Buffer Overflow

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a boundary error within pngimage.c. A remote attacker can pass specially crafted data to the application, trigger a heap-based buffer overflow and perform a denial of service (DoS) attack.

Mitigation

Cybersecurity Help is currently unaware of any official solution to address this vulnerability.

Vulnerable software versions

libpng: 1.6.0 - 1.6.39

External links

http://bugzilla.redhat.com/show_bug.cgi?id=2043393
http://access.redhat.com/security/cve/CVE-2021-4214
http://security-tracker.debian.org/tracker/CVE-2021-4214
http://github.com/glennrp/libpng/issues/302
http://security.netapp.com/advisory/ntap-20221020-0001/

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.