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Vulnerability of ICU: integer overflow via UnicodeString-doAppend

Synthesis of the vulnerability 

An attacker can trigger an integer overflow via UnicodeString::doAppend() of ICU, in order to trigger a denial of service, and possibly to run code.
Impacted products: Debian, Fedora, Nodejs Core, openSUSE Leap, RHEL, SUSE Linux Enterprise Desktop, SLES, Ubuntu.
Severity of this bulletin: 2/4.
Creation date: 17/03/2020.
Références of this threat: CVE-2020-10531, DLA-2151-1, DSA-4646-1, FEDORA-2020-39e0b8bd14, openSUSE-SU-2020:0459-1, RHSA-2020:0896-01, RHSA-2020:0897-01, RHSA-2020:0901-01, RHSA-2020:0902-01, RHSA-2020:1293-01, RHSA-2020:1317-01, RHSA-2020:1343-01, SUSE-SU-2020:1180-1, USN-4305-1, VIGILANCE-VUL-31815.

Description of the vulnerability 

An attacker can trigger an integer overflow via UnicodeString::doAppend() of ICU, in order to trigger a denial of service, and possibly to run code.
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This computer weakness alert impacts software or systems such as Debian, Fedora, Nodejs Core, openSUSE Leap, RHEL, SUSE Linux Enterprise Desktop, SLES, Ubuntu.

Our Vigil@nce team determined that the severity of this weakness note is medium.

The trust level is of type confirmed by the editor, with an origin of document.

An attacker with a expert ability can exploit this weakness bulletin.

Solutions for this threat 

Debian 8: new icu packages.
New packages are available:
  Debian 8: icu 52.1-8+deb8u8

Debian 9/10: new icu packages.
New packages are available:
  Debian 9: icu 57.1-6+deb9u4
  Debian 10: icu 63.1-6+deb10u1

Fedora 30: new chromium packages.
New packages are available:
  Fedora 30: chromium 80.0.3987.149-1.fc30

Node Core: version 10.21.0.
The version 10.21.0 is fixed:
  https://nodejs.org/en/download/

openSUSE Leap 15.1: new icu packages.
New packages are available:
  openSUSE Leap 15.1: icu 60.2-lp151.3.11.1

RHEL 6.10: new icu packages.
New packages are available:
  RHEL 6.10: icu 4.2.1-15.el6_10

RHEL 7.7: new icu packages.
New packages are available:
  RHEL 7.7: icu 50.2-4.el7_7

RHEL 8.0: new icu packages.
New packages are available:
  RHEL 8.0: icu 60.3-2.el8_0

RHEL 8.0: new nodejs-10 module.
The following module is updated:
  RHEL 8.0 Module: nodejs:10

RHEL 8.1: new icu packages.
New packages are available:
  RHEL 8.1: icu 60.3-2.el8_1

RHEL 8.1: new nodejs-10 module.
The following module is updated:
  RHEL 8.1 Module: nodejs:10

RHEL 8.1: new nodejs-12 module.
The following module is updated:
  RHEL 8.1 Module: nodejs:12

SUSE LE 12: new icu packages.
New packages are available:
  SUSE LE 12 SP5: icu 52.1-8.10.1
  SUSE LE 12 SP4: icu 52.1-8.10.1
  SUSE LE 12 SP3: libicu52_1 52.1-8.10.1
  SUSE LE 12 SP2: libicu52_1 52.1-8.10.1
  SUSE LE 12 SP1: icu 52.1-8.10.1

Ubuntu: new libicu packages.
New packages are available:
  Ubuntu 19.10: libicu63 63.2-2ubuntu0.1
  Ubuntu 18.04 LTS: libicu60 60.2-3ubuntu3.1
  Ubuntu 16.04 LTS: libicu55 55.1-7ubuntu0.5
  Ubuntu 14.04 ESM: libicu52 52.1-3ubuntu0.8+esm1
  Ubuntu 12.04 ESM: libicu48 4.8.1.1-3ubuntu0.10

Wind River Linux: version 10.18.44.17.
The version 10.18.44.17 is fixed:
  https://support2.windriver.com/

Wind River Linux: version 10.19.45.8.
The version 10.19.45.8 is fixed.
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