CVE-2018-20030

NameCVE-2018-20030
DescriptionAn error when processing the EXIF_IFD_INTEROPERABILITY and EXIF_IFD_EXIF tags within libexif version 0.6.21 can be exploited to exhaust available CPU resources.
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)
ReferencesDLA-2214-1, DLA-2222-1
NVD severityhigh
Debian Bugs918730

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+deb8u3fixed
stretch (security)0.6.21-2+deb9u1vulnerable
buster, buster (security)0.6.21-5.1+deb10u1fixed
bullseye0.6.21-8fixed
sid0.6.21-9fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
libexifsource(unstable)0.6.21-5.1918730
libexifsourcejessie0.6.21-2+deb8u3DLA-2222-1

Notes

[stretch] - libexif <no-dsa> (Minor issue)
https://secuniaresearch.flexerasoftware.com/secunia_research/2018-28/
https://github.com/libexif/libexif/commit/6aa11df549114ebda520dde4cdaea2f9357b2c89

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