CVE-2020-10531
Vulnerability Summary
Timeline
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.
CVSS Metrics
- v3.1•HIGH•Score: 8.8CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- v2.0•MEDIUM•Score: 6.8AV:N/AC:M/Au:N/C:P/I:P/A:P
EPSS Trends
Current EPSS score: 0.79%• Percentile: 74%
Techniques & Countermeasures
- CWE-190•Integer Overflow or Wraparound
The product performs a calculation that can produce an integer overflow or wraparound when the logic assumes that the resulting value will always be larger than the original value. This occurs when an integer value is incremented to a value that is too large to store in the associated representation. When this occurs, the value may become a very small or negative number.
- CWE-787•Out-of-bounds Write
The product writes data past the end, or before the beginning, of the intended buffer.
Affected Systems
- canonical•ubuntu_linux
12.04 | 14.04 | 16.04 | 18.04 | 19.10
- debian•debian_linux
8.0 | 9.0 | 10.0
- fedoraproject•fedora
30 | 31 | 33
- google•chrome
< 80.0.3987.122
- icu-project•international_components_for_unicode
≤ 66.1
- nodejs•node.js
≥ 10.0.0, ≤ 10.12.0 | ≥ 10.13.0, < 10.21.0
- opensuse•leap
15.1
- oracle•banking_extensibility_workbench
14.3.0 | 14.4.0
- redhat•enterprise_linux_desktop
6.0
- redhat•enterprise_linux_server
6.0
- redhat•enterprise_linux_workstation
6.0
References (18)
- https://access.redhat.com/errata/RHSA-2020:0738
- https://security.gentoo.org/glsa/202003-15
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/X3B5RWJQD5LA45MYLLR55KZJOJ5NVZGP/
- https://lists.debian.org/debian-lts-announce/2020/03/msg00024.html
- https://www.debian.org/security/2020/dsa-4646
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6IOHSO6BUKC6I66J5PZOMAGFVJ66ZS57/
- https://usn.ubuntu.com/4305-1/
- http://lists.opensuse.org/opensuse-security-announce/2020-04/msg00004.html
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4OOYAMJVLLCLXDTHW3V5UXNULZBBK4O6/
- https://www.oracle.com/security-alerts/cpujan2021.html
- https://chromereleases.googleblog.com/2020/02/stable-channel-update-for-desktop_24.html
- https://bugs.chromium.org/p/chromium/issues/detail?id=1044570
- https://chromium.googlesource.com/chromium/deps/icu/+/9f4020916eb1f28f3666f018fdcbe6c9a37f0e08
- https://unicode-org.atlassian.net/browse/ICU-20958
- https://github.com/unicode-org/icu/pull/971
- https://github.com/unicode-org/icu/commit/b7d08bc04a4296982fcef8b6b8a354a9e4e7afca
- https://www.oracle.com//security-alerts/cpujul2021.html
- https://www.oracle.com/security-alerts/cpuapr2022.html