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::zlibUncompress call.
The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.
| Link | Tags |
|---|---|
| https://usn.ubuntu.com/3700-1/ | third party advisory vendor advisory |
| https://www.debian.org/security/2018/dsa-4238 | third party advisory vendor advisory |
| https://lists.debian.org/debian-lts-announce/2018/10/msg00012.html | third party advisory mailing list |
| https://security.gentoo.org/glsa/201811-14 | third party advisory vendor advisory |
| https://lists.debian.org/debian-lts-announce/2018/06/msg00010.html | third party advisory mailing list |
| https://github.com/Exiv2/exiv2/issues/302 | third party advisory exploit |
| https://access.redhat.com/errata/RHSA-2019:2101 | vendor advisory |