Out-of-bounds read in Exiv2 - CVE-2020-18771
Published: December 22, 2023
Vulnerability identifier: #VU84705
CSH Severity: Medium
CVSS v4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:L/SC:N/SI:N/SA:N]
CVE-ID: CVE-2020-18771
CWE-ID: CWE-125
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack or gain access to sensitive information.
The vulnerability exists due to global buffer over-read in Exiv2::Internal::Nikon1MakerNote::print0x0088 in nikonmn_int.cpp. A remote attacker can perform a denial of service attack or gain access to sensitive information.
Affected software
Exiv2
Gentoo Linux
Ubuntu
exiv2 (Ubuntu package)
media-gfx/exiv2
Gentoo Linux
Ubuntu
exiv2 (Ubuntu package)
media-gfx/exiv2
How to mitigate CVE-2020-18771
Install update from vendor's website.
Exiv2 - update to 0.27.1
exiv2 (Ubuntu package) - addressed in versions 0.25-2.1ubuntu16.04.7+esm5, 0.25-3.1ubuntu0.18.04.11+esm1, 0.27.2-8ubuntu2.7+esm1, 0.27.2-8ubuntu2.7+esm3, 0.27.5-3ubuntu1.1, 0.27.5-3ubuntu1.3, 0.27.6-1ubuntu0.1, 0.27.6-1ubuntu0.3, 0.28.5+dfsg-1ubuntu0.1, 0.28.5+dfsg-1ubuntu0.3
media-gfx/exiv2 - update to 0.28.1
exiv2 (Ubuntu package) - addressed in versions 0.25-2.1ubuntu16.04.7+esm5, 0.25-3.1ubuntu0.18.04.11+esm1, 0.27.2-8ubuntu2.7+esm1, 0.27.2-8ubuntu2.7+esm3, 0.27.5-3ubuntu1.1, 0.27.5-3ubuntu1.3, 0.27.6-1ubuntu0.1, 0.27.6-1ubuntu0.3, 0.28.5+dfsg-1ubuntu0.1, 0.28.5+dfsg-1ubuntu0.3
media-gfx/exiv2 - update to 0.28.1