CVE-2021-4214
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I. Basic Information for CVE-2021-4214
Vulnerability Information
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Vulnerability Title
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Description
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.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
未进行输入大小检查的缓冲区拷贝(传统缓冲区溢出)
Source: NVD (National Vulnerability Database)
Vulnerability Title
libpng 缓冲区错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
libpng是一个可对PNG图形文件实现创建、读写等操作的PNG参考库。 libpng 存在缓冲区错误漏洞，该漏洞源于其pngimage.c组件的缺陷允许具有本地网络访问权限的攻击者将一个特殊制作的PNG文件传递给PNG图像实用程序实现堆缓冲区溢出致使程序崩溃，导致拒绝服务。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| - | libpng | libpng v1.6 | - |
II. Public POCs for CVE-2021-4214
| # | POC Description | Source Link | Shenlong Link |
|---|
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Same Patch Batch · n/a · 2022-08-24 · 41 CVEs total
| CVE-2022-25903 | 7.5 HIGH | Denial of Service (DoS) |
| CVE-2022-24375 | 7.5 HIGH | Denial of Service (DoS) |
| CVE-2022-20122 | Google Android 资源管理错误漏洞 | |
| CVE-2021-0947 | Google Android 缓冲区错误漏洞 | |
| CVE-2021-4178 | Kubernetes 代码问题漏洞 | |
| CVE-2021-4209 | GnuTLS 代码问题漏洞 | |
| CVE-2021-4213 | Linux jss 安全漏洞 | |
| CVE-2021-4218 | Linux kernel 安全漏洞 | |
| CVE-2021-4217 | Info-ZIP UnZip 代码问题漏洞 | |
| CVE-2021-4122 | cryptsetup 数据伪造问题漏洞 | |
| CVE-2021-4125 | Red Hat OpenShift 代码问题漏洞 | |
| CVE-2021-4142 | Red Hat Satellite 授权问题漏洞 | |
| CVE-2021-4155 | Red Hat Enterprise Linux 权限许可和访问控制问题漏洞 | |
| CVE-2021-4158 | QEMU 代码问题漏洞 | |
| CVE-2021-4159 | Linux kernel 安全漏洞 | |
| CVE-2021-4041 | Ansible-Runner 操作系统命令注入漏洞 | |
| CVE-2021-4040 | Red Hat AMQ Broker 缓冲区错误漏洞 | |
| CVE-2022-37181 | 72crm 代码问题漏洞 | |
| CVE-2022-37178 | 72crm SQL注入漏洞 | |
| CVE-2018-14520 | Kirby 跨站脚本漏洞 |
Showing top 20 of 41 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
Same product: libpng
- CVE-2026-34757
LIBPNG has a yse-after-free in png_set_PLTE, png_set_tRNS an - CVE-2026-33636
LIBPNG has ARM NEON Palette Expansion Out-of-Bounds Read on - CVE-2026-33416
LIBPNG has use-after-free via pointer aliasing in `png_set_t - CVE-2026-3713
pnggroup libpng pnm2png pnm2png.c do_pnm2png heap-based over - CVE-2026-25646
LIBPNG has a heap buffer overflow in png_set_quantize
Same vendor: n/a
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Same weakness: CWE-120
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V. Comments for CVE-2021-4214
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