CVE-2020-18771
exiv2: buffer overflow in Exiv2::Internal::Nikon1MakerNote::print0x0088 in nikonmn_int.cpp
Severity
LowRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · March 25, 2019
Updated · November 21, 2025
Description
Exiv2 0.27.99.0 has a global buffer over-read in Exiv2::Internal::Nikon1MakerNote::print0x0088 in nikonmn_int.cpp which can result in an information leak.
Statement
Red Hat Product Security has determined the Impact to this bug as low for the following reasons:
- The attacker needs access to the system to trigger the bug as exiv2 is a library accompanied by a command line utility.
- While it is possible to crash exiv2 with a malicious payload, there is no known exploit to be able to run arbitrary code or escalate privileges. This only creates an availability problem.
- The bug does not affect any other resources in terms of integrity, confidentiality or avialability.
CVSS score applicability
The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
Mitigation
No mitigation is specified in collected source.
CVSS / CWE
CVSS 3.1 · 3.5CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:L
CWE-119 · Improper Restriction of Operations within the Bounds of a Memory Buffer