Home/CVE/An issue was discovered in International Components for Unicode (ICU) for C/C++ through 66.1. An integer overflow, leadi
CVE

CVE-2020-10531

An issue was discovered in International Components for Unicode (ICU) for C/C++ through 66.1. An integer overflow, leadi

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.

HIGH · CVSS 8.8 EPSS 0.0079
Schedule remediation
  • CVSS base score ≥ 7.0
Sigma rules2 YARA rules0
⬡

Weakness Classification

CWE-190Integer Overflow or Wraparound
CWE-787Out-of-bounds Write
▤

Affected Products & Versions

12
icu-project international components for unicode<= 66.1
redhat enterprise linux desktopall versions
redhat enterprise linux serverall versions
redhat enterprise linux workstationall versions
google chrome< 80.0.3987.122
fedoraproject fedoraall versions
debian linuxall versions
canonical ubuntu linuxall versions
◈

Sigma Hunt Rules

2
Exact rules name this CVE ID. Product rules name an affected product in their title. Related rules cover techniques used by actors who exploited this CVE. Showing the most relevant matches; the complete related set is on the full drill-down.
producthighRunning Chrome VPN Extensions via the Registry 2 VPN Extension
productmediumPotential Chrome Frame Helper DLL Sideloading
▣

Scoring & Timeline

8.8
HIGH · CVSS v3.1 · cve@mitre.org
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD12 Mar 2020 · 07:15 PM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
⚑

Vendor Advisories

26
suse-csafopenSUSE-SU-2024:12116-1
suse-csafopenSUSE-SU-2024:13127-1
suse-csafsuse-ou-2024_0647-1
siemens-csafSSA-398330
suse-csafSUSE-SU-2023:3563-3
🔗

References & Sources

17
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
http://lists.opensuse.org/opensuse-security-announce/2020-04/msg00004.htmlMailing ListThird Party Advisory
https://bugs.chromium.org/p/chromium/issues/detail?id=1044570Permissions RequiredThird Party Advisory
https://chromereleases.googleblog.com/2020/02/stable-channel-update-for-desktop_24.htmlThird Party Advisory
https://chromium.googlesource.com/chromium/deps/icu/+/9f4020916eb1f28f3666f018fdcbe6c9a37f0e08PatchThird Party Advisory
https://github.com/unicode-org/icu/commit/b7d08bc04a4296982fcef8b6b8a354a9e4e7afcaPatchThird Party Advisory
https://github.com/unicode-org/icu/pull/971Issue TrackingPatchThird Party Advisory
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