DescriptionA vulnerability was found in libexif. An integer overflow when parsing the MNOTE entry data of the input file. This can cause Denial-of-Service (DoS) and Information Disclosure (disclosing some critical heap chunk metadata, even other applications' private data).
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub code/issues, web search, more)
NVD severitymedium
Debian Bugs873022

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
libexif (PTS)jessie, stretch0.6.21-2vulnerable
jessie (security)0.6.21-2+deb8u1vulnerable
stretch (security)0.6.21-2+deb9u1vulnerable
buster (security)0.6.21-5.1+deb10u1fixed
bullseye, sid0.6.21-6fixed

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs


[stretch] - libexif <no-dsa> (Minor issue)
[jessie] - libexif <no-dsa> (Minor issue)
[wheezy] - libexif <no-dsa> (Minor issue)

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