Medium severity · published Dec 12, 2018
CVE-2018-20096
There is a heap-based buffer over-read in the Exiv2::tEXtToDataBuf function of pngimage.cpp in Exiv2 0.27-RC3
6.5
CVSS
2.8%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)2.8% · higher than 86% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
EX
Exiv2 · Exiv2
0.27 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2018-20096
CVE.org
https://www.cve.org/CVERecord?id=CVE-2018-20096
access.redhat.com
https://access.redhat.com/errata/RHSA-2019:2101
Exploit
https://github.com/Exiv2/exiv2/issues/590
Exploit
https://github.com/TeamSeri0us/pocs/tree/master/exiv2/20181206
lists.fedoraproject.org
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZXCEKTYF7HLM6VH2WCWO2HXTJH37MBLA/
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