What’s Vulnerable › Vulnerabilities

CVE-2018-20097

• Severity: medium (CVSS 6.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 2.3% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2018-12-12 · updated 2026-06-17
• Weakness: CWE-119

Description

There is a SEGV in Exiv2::Internal::TiffParserWorker::findPrimaryGroups of tiffimage_int.cpp in Exiv2 0.27-RC3. A crafted input will lead to a remote denial of service attack.

Affected products

• Debian Linux: 8.0, 10.0
• exiv2: 0.27-rc3
• Fedoraproject Fedora: 30
• RedHat Enterprise Linux Dekstop: 7.0
• RedHat Enterprise Linux Server: 7.0
• RedHat Enterprise Linux Workstation: 7.0

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.debian.org/debian-lts-announce/2019/02/msg00038.html
• https://lists.debian.org/debian-lts-announce/2023/01/msg00004.html
• 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.debian.org/debian-lts-announce/2019/02/msg00038.html
• https://lists.debian.org/debian-lts-announce/2023/01/msg00004.html
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZXCEKTYF7HLM6VH2WCWO2HXTJH37MBLA/

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