In types.cpp in Exiv2 0.26, a large size value may lead to a SIGABRT during an attempt at memory allocation for an Exiv2::Internal::PngChunk::zlibUnco...

References

• advisory https://access.redhat.com/errata/RHSA-2019:2101
• advisory https://lists.debian.org/debian-lts-announce/2018/06/msg00010.html
• advisory https://lists.debian.org/debian-lts-announce/2018/10/msg00012.html
• advisory https://security.gentoo.org/glsa/201811-14
• advisory https://usn.ubuntu.com/3700-1/
• advisory https://www.debian.org/security/2018/dsa-4238
• report https://github.com/Exiv2/exiv2/issues/302