CVE-2021-4214

Katalog CVE

CVSS 5.5 · Medium EPSS 0,52%

Kerentanan Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') pada libpng, debian linux +1 lainnya. Skor CVSS 3.1 5.5 (Medium) menurut NVD.

Deskripsi (NVD)

A heap overflow flaw was found in libpngs' pngimage.c program. This flaw allows an attacker with local network access to pass a specially crafted PNG file to the pngimage utility, causing an application to crash, leading to a denial of service.

Rincian

Terbit di NVD

24 Agustus 2022

Terakhir diubah

17 Juni 2026

Status NVD

Modified

CVSS 3.1

5.5 (Medium), sumber NVD
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-120: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
CWE-787: Out-of-bounds Write

EPSS (30 hari)

0,52% peluang dieksploitasi; lebih tinggi dari 42,6% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://access.redhat.com/security/cve/CVE-2021-4214 advisory pihak ketiga
• https://bugzilla.redhat.com/show_bug.cgi?id=2043393 exploit · issue tracking · advisory pihak ketiga
• https://github.com/glennrp/libpng/issues/302 exploit · advisory pihak ketiga
• https://security-tracker.debian.org/tracker/CVE-2021-4214 advisory pihak ketiga
• https://security.netapp.com/advisory/ntap-20221020-0001/ advisory pihak ketiga