A flaw was found in LibRaw versions prior to 0.18.9. An error within the "LibRaw::parse_exif()" function (internal/dcraw_common.cpp) can be exploited to cause a stack-based buffer overflow and subsequently execute arbitrary code. References: https://github.com/LibRaw/LibRaw/blob/master/Changelog.txt https://secuniaresearch.flexerasoftware.com/advisories/81800/ https://secuniaresearch.flexerasoftware.com/secunia_research/2018-9/ Upstream Patch: https://github.com/LibRaw/LibRaw/commit/fd6330292501983ac75fe4162275794b18445bd9
Created LibRaw tracking bugs for this issue: Affects: epel-6 [bug 1661521]
Increase Impact of the flaw to Important and set C:H/I:H/A:H because arbitrary code execution may be possible on affected versions.
Function parse_exif() in internal/dcraw_common.cpp does not check the "len" variable when tag is equal to 37500 and it may reads more than 512 bytes in the mn_text array, causing a stack-based buffer overflow and subsequently execute arbitrary code.
Statement: This issue did not affect the versions of LibRaw as shipped with Red Hat Enterprise Linux 7 as the vulnerable code is not present.