CVE-2020-10531high
Description
An issue was discovered in International Components for Unicode (ICU) for C/C++ through 66.1. An integer overflow, leading to a heap-based buffer overflow, exists in the UnicodeString::doAppend() function in common/unistr.cpp.
References
https://github.com/unicode-org/icu/pull/971
https://chromium.googlesource.com/chromium/deps/icu/+/9f4020916eb1f28f3666f018fdcbe6c9a37f0e08
https://unicode-org.atlassian.net/browse/ICU-20958
https://chromereleases.googleblog.com/2020/02/stable-channel-update-for-desktop_24.html
https://bugs.chromium.org/p/chromium/issues/detail?id=1044570
https://github.com/unicode-org/icu/commit/b7d08bc04a4296982fcef8b6b8a354a9e4e7afca
https://access.redhat.com/errata/RHSA-2020:0738
https://security.gentoo.org/glsa/202003-15
https://lists.debian.org/debian-lts-announce/2020/03/msg00024.html
https://www.debian.org/security/2020/dsa-4646
https://usn.ubuntu.com/4305-1/
http://lists.opensuse.org/opensuse-security-announce/2020-04/msg00004.html
https://www.oracle.com/security-alerts/cpujan2021.html
Details
Source: MITRE
Published: 2020-03-12
Updated: 2022-04-26
Type: CWE-787
Risk Information
CVSS v2
Base Score: 6.8
Vector: AV:N/AC:M/Au:N/C:P/I:P/A:P
Impact Score: 6.4
Exploitability Score: 8.6
Severity: MEDIUM
CVSS v3
Base Score: 8.8
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Impact Score: 5.9
Exploitability Score: 2.8
Severity: HIGH