Ubuntu.comUB:CVE-2020-10531CVE-2020-10531
8.8 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
6.8 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:M/Au:N/C:P/I:P/A:P
0.004 Low
EPSS
Percentile
73.9%
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.
Bugs
- <http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=953747>
- <https://bugs.chromium.org/p/chromium/issues/detail?id=1044570 (not public)>
- <https://unicode-org.atlassian.net/browse/ICU-20958>
Notes
| Author | Note |
|---|---|
| leosilva | According with debian versions bellow 52.1.8 are not affected because code is not present, though, it needs further confirmation. keep precise/trusty as needs-triage. |
| mdeslaur | in xenial and older releases, vulnerable code looks to be in UnicodeString::doReplace, need to investigate |
| leosilva | doAppend was write based on doReplace, that originally shipped the vul code more info, check commit 3d77fc18b8b. Marking precise/trusty as needed. |
| OS | Version | Architecture | Package | Version | Filename |
|---|---|---|---|---|---|
| ubuntu | 18.04 | noarch | chromium-browser | < 80.0.3987.149-0ubuntu0.18.04.1 | UNKNOWN |
| ubuntu | 16.04 | noarch | chromium-browser | < 80.0.3987.149-0ubuntu0.16.04.1 | UNKNOWN |
| ubuntu | 18.04 | noarch | icu | < 60.2-3ubuntu3.1 | UNKNOWN |
| ubuntu | 19.10 | noarch | icu | < 63.2-2ubuntu0.1 | UNKNOWN |
| ubuntu | 14.04 | noarch | icu | < 52.1-3ubuntu0.8+esm1) Available with Ubuntu Pro or Ubuntu Pro (Infra-only | UNKNOWN |
| ubuntu | 16.04 | noarch | icu | < 55.1-7ubuntu0.5 | UNKNOWN |
References
chromereleases.googleblog.com/2020/02/stable-channel-update-for-desktop_24.html
github.com/unicode-org/icu/pull/971
launchpad.net/bugs/cve/CVE-2020-10531
nvd.nist.gov/vuln/detail/CVE-2020-10531
security-tracker.debian.org/tracker/CVE-2020-10531
ubuntu.com/security/notices/USN-4305-1
www.cve.org/CVERecord?id=CVE-2020-10531
Related
8.8 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
6.8 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:M/Au:N/C:P/I:P/A:P
0.004 Low
EPSS
Percentile
73.9%