CVE-2018-20097: Buffer Overflow
First published: Wed Dec 12 2018(Updated: )
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.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| CentOS Dos2unix | =0.27-rc3 | |
| Debian | =8.0 | |
| Debian | =10.0 | |
| Fedora | =30 | |
| Red Hat Enterprise Linux Desktop | =7.0 | |
| Red Hat Enterprise Linux Server | =7.0 | |
| Red Hat Enterprise Linux Workstation | =7.0 |
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Reference Links
- 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@lists.fedoraproject.org/message/ZXCEKTYF7HLM6VH2WCWO2HXTJH37MBLA/
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1660427
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1660428
- https://github.com/Exiv2/exiv2/commit/203ab0db28c9666b16069d4056ac5f66f753a51d
- https://access.redhat.com/security/updates/classification/
- https://access.redhat.com/security/cve/cve-2018-20097
- https://access.redhat.com/errata/RHSA-2020:1577
- https://bugzilla.redhat.com/show_bug.cgi?id=1660424
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZXCEKTYF7HLM6VH2WCWO2HXTJH37MBLA/
Frequently Asked Questions
What is the severity of CVE-2018-20097?
CVE-2018-20097 is classified as a denial of service vulnerability due to a segmentation fault in Exiv2 0.27-RC3.
How do I fix CVE-2018-20097?
To mitigate CVE-2018-20097, upgrade to a patched version of Exiv2 that addresses the segmentation fault.
What versions of Exiv2 are affected by CVE-2018-20097?
CVE-2018-20097 specifically affects Exiv2 version 0.27-RC3.
What systems are vulnerable to CVE-2018-20097?
CVE-2018-20097 impacts multiple systems including Debian 8.0, Debian 10.0, Fedora 30, and Red Hat Enterprise Linux 7.0.
What type of attack can exploit CVE-2018-20097?
CVE-2018-20097 can be exploited to execute a remote denial of service attack through crafted input.
- agent/type
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- version/red hat enterprise linux desktop/7.0
- canonical/red hat enterprise linux server
- version/red hat enterprise linux server/7.0
- canonical/red hat enterprise linux workstation
- version/red hat enterprise linux workstation/7.0