CVE-2020-10531

HIGH

ICU <66.1 - Buffer Overflow

Title source: llm

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 (18)

[Mailing List, Third Party Advisory] http://lists.opensuse.org/opensuse-security-announce/2020-04/msg00004.html

[Third Party Advisory] https://access.redhat.com/errata/RHSA-2020:0738

[Permissions Required, Third Party Advisory] https://bugs.chromium.org/p/chromium/issues/detail?id=1044570

[Third Party Advisory] https://chromereleases.googleblog.com/2020/02/stable-channel-update-for-desktop_24.html

[Patch, Third Party Advisory] https://chromium.googlesource.com/chromium/deps/icu/+/9f4020916eb1f28f3666f018fdcbe6c9a37f0e08

[Patch, Third Party Advisory] https://github.com/unicode-org/icu/commit/b7d08bc04a4296982fcef8b6b8a354a9e4e7afca

View Patch ZIP pw:eip

[Issue Tracking, Patch, Third Party Advisory] https://github.com/unicode-org/icu/pull/971

[Mailing List, Third Party Advisory] https://lists.debian.org/debian-lts-announce/2020/03/msg00024.html

[Third Party Advisory] https://security.gentoo.org/glsa/202003-15

[Permissions Required, Third Party Advisory] https://unicode-org.atlassian.net/browse/ICU-20958

[Third Party Advisory] https://usn.ubuntu.com/4305-1/

[Third Party Advisory] https://www.debian.org/security/2020/dsa-4646

[Not Applicable, Third Party Advisory] https://www.oracle.com//security-alerts/cpujul2021.html

[Third Party Advisory] https://www.oracle.com/security-alerts/cpuapr2022.html

[Patch, Third Party Advisory] https://www.oracle.com/security-alerts/cpujan2021.html

[Mailing List, Third Party Advisory] https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4OOYAMJVLLCLXDTHW3V5UXNULZBBK4O6/

[Mailing List, Third Party Advisory] https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6IOHSO6BUKC6I66J5PZOMAGFVJ66ZS57/

[Mailing List, Third Party Advisory] https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/X3B5RWJQD5LA45MYLLR55KZJOJ5NVZGP/

Scores

CVSS v3 8.8

EPSS 0.0079

EPSS Percentile 73.6%

Attack Vector NETWORK

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Classification

CWE

CWE-190 CWE-787

Status published

Affected Products (21)

icu-project/international_components_for_unicode < 66.1

redhat/enterprise_linux_desktop

redhat/enterprise_linux_server

redhat/enterprise_linux_workstation

google/chrome < 80.0.3987.122

fedoraproject/fedora

debian/debian_linux

canonical/ubuntu_linux

... and 6 more

Timeline

Published Mar 12, 2020

Tracked Since Feb 18, 2026