Vulnerability Database

383,304

Total vulnerabilities in the database

CVE-2008-6218 — libpng / libpng

Resource Management Errors

Memory leak in the png_handle_tEXt function in pngrutil.c in libpng before 1.2.33 rc02 and 1.4.0 beta36 allows context-dependent attackers to cause a denial of service (memory exhaustion) via a crafted PNG file.

  • Published: Feb 20, 2009
  • Updated: Sep 13, 2026
  • CVE: CVE-2008-6218
  • Severity: High
  • Exploit:
  • CISA KEV:

CVSS v2:

  • Severity: High
  • Score: 7.1
  • AV:N/AC:M/Au:N/C:N/I:N/A:C

CWEs:

Software Affected versions
libpng / libpng = 1.2.0
libpng / libpng = 1.2.0-beta1
libpng / libpng = 1.2.0-beta2
libpng / libpng = 1.2.0-beta3
libpng / libpng = 1.2.0-beta4
libpng / libpng = 1.2.0-beta5
libpng / libpng = 1.2.0-rc1
libpng / libpng = 1.2.1
libpng / libpng = 1.2.1-beta1
libpng / libpng = 1.2.1-beta2
libpng / libpng = 1.2.1-beta3
libpng / libpng = 1.2.1-beta4
libpng / libpng = 1.2.1-rc1
libpng / libpng = 1.2.1-rc2
libpng / libpng = 1.2.2
libpng / libpng = 1.2.2-beta1
libpng / libpng = 1.2.2-beta2
libpng / libpng = 1.2.2-beta3
libpng / libpng = 1.2.2-beta4
libpng / libpng = 1.2.2-beta5
libpng / libpng = 1.2.2-beta6
libpng / libpng = 1.2.2-rc1
libpng / libpng = 1.2.3
libpng / libpng = 1.2.3-rc1
libpng / libpng = 1.2.3-rc2
libpng / libpng = 1.2.3-rc3
libpng / libpng = 1.2.3-rc4
libpng / libpng = 1.2.3-rc5
libpng / libpng = 1.2.3-rc6
libpng / libpng = 1.2.4
libpng / libpng = 1.2.4-beta1
libpng / libpng = 1.2.4-beta2
libpng / libpng = 1.2.4-beta3
libpng / libpng = 1.2.4-rc1
libpng / libpng = 1.2.5
libpng / libpng = 1.2.5-beta1
libpng / libpng = 1.2.5-beta2
libpng / libpng = 1.2.5-beta3
libpng / libpng = 1.2.5-rc1
libpng / libpng = 1.2.5-rc2
libpng / libpng = 1.2.5-rc3
libpng / libpng = 1.2.6
libpng / libpng = 1.2.6-beta1
libpng / libpng = 1.2.6-beta2
libpng / libpng = 1.2.6-beta3
libpng / libpng = 1.2.6-beta4
libpng / libpng = 1.2.6-rc1
libpng / libpng = 1.2.6-rc2
libpng / libpng = 1.2.6-rc3
libpng / libpng = 1.2.6-rc4
libpng / libpng = 1.2.6-rc5
libpng / libpng = 1.2.7
libpng / libpng = 1.2.7-beta1
libpng / libpng = 1.2.7-beta2
libpng / libpng = 1.2.8
libpng / libpng = 1.2.8-beta1
libpng / libpng = 1.2.8-beta2
libpng / libpng = 1.2.8-beta3
libpng / libpng = 1.2.8-beta4
libpng / libpng = 1.2.8-beta5
libpng / libpng = 1.2.8-rc1
libpng / libpng = 1.2.8-rc2
libpng / libpng = 1.2.8-rc3
libpng / libpng = 1.2.8-rc4
libpng / libpng = 1.2.8-rc5
libpng / libpng = 1.2.9
libpng / libpng = 1.2.9-beta1
libpng / libpng = 1.2.9-beta10
libpng / libpng = 1.2.9-beta2
libpng / libpng = 1.2.9-beta3
libpng / libpng = 1.2.9-beta4
libpng / libpng = 1.2.9-beta5
libpng / libpng = 1.2.9-beta6
libpng / libpng = 1.2.9-beta7
libpng / libpng = 1.2.9-beta8
libpng / libpng = 1.2.9-beta9
libpng / libpng = 1.2.9-rc1
libpng / libpng = 1.2.10
libpng / libpng = 1.2.10-beta1
libpng / libpng = 1.2.10-beta2
libpng / libpng = 1.2.10-beta3
libpng / libpng = 1.2.10-beta4
libpng / libpng = 1.2.10-beta5
libpng / libpng = 1.2.10-beta6
libpng / libpng = 1.2.10-beta7
libpng / libpng = 1.2.10-rc1
libpng / libpng = 1.2.10-rc2
libpng / libpng = 1.2.10-rc3
libpng / libpng = 1.2.11
libpng / libpng = 1.2.11-beta1
libpng / libpng = 1.2.11-beta2
libpng / libpng = 1.2.11-beta3
libpng / libpng = 1.2.11-beta4
libpng / libpng = 1.2.11-rc1
libpng / libpng = 1.2.11-rc2
libpng / libpng = 1.2.11-rc3
libpng / libpng = 1.2.11-rc5
libpng / libpng = 1.2.13
libpng / libpng = 1.2.13-beta1
libpng / libpng = 1.2.13-rc1
libpng / libpng = 1.2.13-rc2
libpng / libpng = 1.2.14
libpng / libpng = 1.2.14-beta1
libpng / libpng = 1.2.14-beta2
libpng / libpng = 1.2.14-rc1
libpng / libpng = 1.2.15
libpng / libpng = 1.2.15-beta1
libpng / libpng = 1.2.15-beta2
libpng / libpng = 1.2.15-beta3
libpng / libpng = 1.2.15-beta4
libpng / libpng = 1.2.15-beta5
libpng / libpng = 1.2.15-beta6
libpng / libpng = 1.2.15-rc1
libpng / libpng = 1.2.15-rc2
libpng / libpng = 1.2.15-rc3
libpng / libpng = 1.2.15-rc4
libpng / libpng = 1.2.15-rc5
libpng / libpng = 1.2.16
libpng / libpng = 1.2.16-beta1
libpng / libpng = 1.2.16-beta2
libpng / libpng = 1.2.16-rc1
libpng / libpng = 1.2.17
libpng / libpng = 1.2.17-beta1
libpng / libpng = 1.2.17-beta2
libpng / libpng = 1.2.17-rc1
libpng / libpng = 1.2.17-rc2
libpng / libpng = 1.2.17-rc3
libpng / libpng = 1.2.17-rc4
libpng / libpng = 1.2.18
libpng / libpng = 1.2.19
libpng / libpng = 1.2.19-beta1
libpng / libpng = 1.2.19-beta10
libpng / libpng = 1.2.19-beta11
libpng / libpng = 1.2.19-beta12
libpng / libpng = 1.2.19-beta13
libpng / libpng = 1.2.19-beta14
libpng / libpng = 1.2.19-beta15
libpng / libpng = 1.2.19-beta16
libpng / libpng = 1.2.19-beta17
libpng / libpng = 1.2.19-beta18
libpng / libpng = 1.2.19-beta19
libpng / libpng = 1.2.19-beta2
libpng / libpng = 1.2.19-beta20
libpng / libpng = 1.2.19-beta21
libpng / libpng = 1.2.19-beta22
libpng / libpng = 1.2.19-beta23
libpng / libpng = 1.2.19-beta24
libpng / libpng = 1.2.19-beta25
libpng / libpng = 1.2.19-beta26
libpng / libpng = 1.2.19-beta27
libpng / libpng = 1.2.19-beta28
libpng / libpng = 1.2.19-beta29
libpng / libpng = 1.2.19-beta3
libpng / libpng = 1.2.19-beta30
libpng / libpng = 1.2.19-beta31
libpng / libpng = 1.2.19-beta32
libpng / libpng = 1.2.19-beta33
libpng / libpng = 1.2.19-beta4
libpng / libpng = 1.2.19-beta5
libpng / libpng = 1.2.19-beta6
libpng / libpng = 1.2.19-beta7
libpng / libpng = 1.2.19-beta8
libpng / libpng = 1.2.19-beta9
libpng / libpng = 1.2.19-rc1
libpng / libpng = 1.2.19-rc2
libpng / libpng = 1.2.19-rc3
libpng / libpng = 1.2.19-rc4
libpng / libpng = 1.2.19-rc5
libpng / libpng = 1.2.19-rc6
libpng / libpng = 1.2.20
libpng / libpng = 1.2.20-beta01
libpng / libpng = 1.2.20-beta02
libpng / libpng = 1.2.20-beta03
libpng / libpng = 1.2.20-beta04
libpng / libpng = 1.2.20-rc1
libpng / libpng = 1.2.20-rc2
libpng / libpng = 1.2.20-rc3
libpng / libpng = 1.2.20-rc4
libpng / libpng = 1.2.20-rc5
libpng / libpng = 1.2.20-rc6
libpng / libpng = 1.2.21
libpng / libpng = 1.2.21-beta1
libpng / libpng = 1.2.21-beta2
libpng / libpng = 1.2.21-rc1
libpng / libpng = 1.2.21-rc2
libpng / libpng = 1.2.21-rc3
libpng / libpng = 1.2.22
libpng / libpng = 1.2.22-beta1
libpng / libpng = 1.2.22-beta2
libpng / libpng = 1.2.22-beta2-1.2.21
libpng / libpng = 1.2.22-beta3
libpng / libpng = 1.2.22-beta3-1.2.21
libpng / libpng = 1.2.22-beta4
libpng / libpng = 1.2.22-beta4-1.2.21
libpng / libpng = 1.2.22-rc1
libpng / libpng = 1.2.22-rc1-1.2.21
libpng / libpng = 1.2.23
libpng / libpng = 1.2.23-beta01
libpng / libpng = 1.2.23-beta01-1.2.22
libpng / libpng = 1.2.23-beta02
libpng / libpng = 1.2.23-beta02-1.2.22
libpng / libpng = 1.2.23-beta03
libpng / libpng = 1.2.23-beta03-1.2.22
libpng / libpng = 1.2.23-beta04
libpng / libpng = 1.2.23-beta04-1.2.22
libpng / libpng = 1.2.23-beta05
libpng / libpng = 1.2.23-beta05-1.2.22
libpng / libpng = 1.2.23-rc01
libpng / libpng = 1.2.23-rc01-1.2.22
libpng / libpng = 1.2.24
libpng / libpng = 1.2.24-beta01
libpng / libpng = 1.2.24-beta01-1.2.23
libpng / libpng = 1.2.24-beta02
libpng / libpng = 1.2.24-beta02-1.2.23
libpng / libpng = 1.2.24-beta03
libpng / libpng = 1.2.24-beta03-1.2.23
libpng / libpng = 1.2.24-rc01
libpng / libpng = 1.2.24-rc01-1.2.23
libpng / libpng = 1.2.25
libpng / libpng = 1.2.25-beta01
libpng / libpng = 1.2.25-beta02
libpng / libpng = 1.2.25-beta03
libpng / libpng = 1.2.25-beta04
libpng / libpng = 1.2.25-beta05
libpng / libpng = 1.2.25-beta06
libpng / libpng = 1.2.25-rc01
libpng / libpng = 1.2.25-rc02
libpng / libpng = 1.2.26
libpng / libpng = 1.2.26-beta01
libpng / libpng = 1.2.26-beta02
libpng / libpng = 1.2.26-beta03
libpng / libpng = 1.2.26-beta04
libpng / libpng = 1.2.26-beta05
libpng / libpng = 1.2.26-beta06
libpng / libpng = 1.2.26-rc01
libpng / libpng = 1.2.27
libpng / libpng = 1.2.28
libpng / libpng = 1.2.29
libpng / libpng = 1.2.30
libpng / libpng = 1.2.31
libpng / libpng = 1.2.32
libpng / libpng = 1.2.33
libpng / libpng = 1.4.0-beta36

Frequently Asked Questions

A security vulnerability is a weakness in software, hardware, or configuration that can be exploited to compromise confidentiality, integrity, or availability. Many vulnerabilities are tracked as CVEs (Common Vulnerabilities and Exposures), which provide a standardized identifier so teams can coordinate patching, mitigation, and risk assessment across tools and vendors.

CVSS (Common Vulnerability Scoring System) estimates technical severity, but it doesn't automatically equal business risk. Prioritize using context like internet exposure, affected asset criticality, known exploitation (proof-of-concept or in-the-wild), and whether compensating controls exist. A "Medium" CVSS on an exposed, production system can be more urgent than a "Critical" on an isolated, non-production host.

A vulnerability is the underlying weakness. An exploit is the method or code used to take advantage of it. A zero-day is a vulnerability that is unknown to the vendor or has no publicly available fix when attackers begin using it. In practice, risk increases sharply when exploitation becomes reliable or widespread.

Recurring findings usually come from incomplete Asset Discovery, inconsistent patch management, inherited images, and configuration drift. In modern environments, you also need to watch the software supply chain: dependencies, containers, build pipelines, and third-party services can reintroduce the same weakness even after you patch a single host. Unknown or unmanaged assets (often called Shadow IT) are a common reason the same issues resurface.

Use a simple, repeatable triage model: focus first on externally exposed assets, high-value systems (identity, VPN, email, production), vulnerabilities with known exploits, and issues that enable remote code execution or privilege escalation. Then enforce patch SLAs and track progress using consistent metrics so remediation is steady, not reactive.

SynScan combines attack surface monitoring and continuous security auditing to keep your inventory current, flag high-impact vulnerabilities early, and help you turn raw findings into a practical remediation plan.