What’s Vulnerable › Vulnerabilities

CVE-2018-20096

• Severity: medium (CVSS 6.5 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 2.8% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2018-12-12 · updated 2026-06-17
• Weakness: CWE-125

Description

There is a heap-based buffer over-read in the Exiv2::tEXtToDataBuf function of pngimage.cpp in Exiv2 0.27-RC3. A crafted input will lead to a remote denial of service attack.

Affected products

• exiv2: 0.27-rc3

References

• https://access.redhat.com/errata/RHSA-2019:2101
• https://github.com/Exiv2/exiv2/issues/590
• https://github.com/TeamSeri0us/pocs/tree/master/exiv2/20181206
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZXCEKTYF7HLM6VH2WCWO2HXTJH37MBLA/
• https://access.redhat.com/errata/RHSA-2019:2101
• https://github.com/Exiv2/exiv2/issues/590
• https://github.com/TeamSeri0us/pocs/tree/master/exiv2/20181206
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZXCEKTYF7HLM6VH2WCWO2HXTJH37MBLA/

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