CVE-2018-7731

NameCVE-2018-7731
DescriptionAn issue was discovered in Exempi through 2.4.4. XMPFiles/source/FormatSupport/WEBP_Support.cpp does not check whether a bitstream has a NULL value, leading to a NULL pointer dereference in the WEBP::VP8XChunk class.
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 (attack range: remote)
Debian Bugs892782

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
exempi (PTS)jessie2.2.1-2fixed
stretch2.4.1-1vulnerable
buster2.5.0-2fixed
bullseye, sid2.5.1-1fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
exempisource(unstable)2.4.5-1low892782
exempisourcejessie(not affected)
exempisourcewheezy(not affected)

Notes

[stretch] - exempi <no-dsa> (Minor issue)
[jessie] - exempi <not-affected> (Vulnerable code introduced later)
[wheezy] - exempi <not-affected> (Vulnerable code introduced later)
https://bugs.freedesktop.org/show_bug.cgi?id=105247
https://cgit.freedesktop.org/exempi/commit/?id=aabedb5e749dd59112a3fe1e8e08f2d934f56666

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