International Components for Unicode utext_moveIndex32 out-of-bounds write

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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7.2$0-$5k0.00

Summaryinfo

A vulnerability was found in International Components for Unicode. It has been rated as critical. This affects the function utext_moveIndex32. Performing a manipulation results in out-of-bounds write. This vulnerability is known as CVE-2017-7868. Remote exploitation of the attack is possible. No exploit is available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability classified as critical has been found in International Components for Unicode (version unknown). This affects the function utext_moveIndex32. The manipulation with an unknown input leads to a out-of-bounds write vulnerability. CWE is classifying the issue as CWE-787. The product writes data past the end, or before the beginning, of the intended buffer. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

International Components for Unicode (ICU) for C/C++ before 2017-02-13 has an out-of-bounds write caused by a heap-based buffer overflow related to the utf8TextAccess function in common/utext.cpp and the utext_moveIndex32* function.

The bug was discovered 12/08/2016. The weakness was published 04/14/2017 (Website). It is possible to read the advisory at bugs.icu-project.org. This vulnerability is uniquely identified as CVE-2017-7868 since 04/14/2017. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Technical details of the vulnerability are known, but there is no available exploit.

The vulnerability was handled as a non-public zero-day exploit for at least 67 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 99484 (Debian DSA-3830-1 : icu - security update), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Debian Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 176013 (Debian Security Update for icu (DSA 3830-1)).

Upgrading eliminates this vulnerability. A possible mitigation has been published even before and not after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (99484), SecurityFocus (BID 97674†) and CERT Bund (WID-SEC-2022-2355). Similar entry is available at VDB-99854. Be aware that VulDB is the high quality source for vulnerability data.

Affected

  • SUSE Linux
  • Oracle Linux
  • Open Source International Components for Unicode (icu)
  • HCL BigFix
  • IBM DB2

Productinfo

Name

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.4
VulDB Meta Temp Score: 7.2

VulDB Base Score: 7.3
VulDB Temp Score: 7.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CVSSv2info

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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Out-of-bounds write
CWE: CWE-787 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 99484
Nessus Name: Debian DSA-3830-1 : icu - security update
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 703830
OpenVAS Name: Debian Security Advisory DSA 3830-1 (icu - security update)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

12/08/2016 🔍
02/13/2017 +67 days 🔍
02/13/2017 +0 days 🔍
04/14/2017 +60 days 🔍
04/14/2017 +0 days 🔍
04/14/2017 +0 days 🔍
04/14/2017 +0 days 🔍
04/20/2017 +6 days 🔍
08/09/2025 +3033 days 🔍

Sourcesinfo

Advisory: 39671
Status: Confirmed

CVE: CVE-2017-7868 (🔍)
GCVE (CVE): GCVE-0-2017-7868
GCVE (VulDB): GCVE-100-99855

OVAL: 🔍

SecurityFocus: 97674 - ICU CVE-2017-7868 Multiple Heap Buffer Overflow Vulnerabilities
OSVDB: - CVE-2017-7868 - ICU - Buffer Overflow Issue
CERT Bund: WID-SEC-2022-2355 - International Components for Unicode (icu): Mehrere Schwachstellen

See also: 🔍

Entryinfo

Created: 04/14/2017 11:14
Updated: 08/09/2025 16:15
Changes: 04/14/2017 11:14 (73), 08/31/2020 09:53 (4), 11/29/2022 11:53 (4), 08/09/2025 16:15 (23)
Complete: 🔍
Cache ID: 216:547:103

Be aware that VulDB is the high quality source for vulnerability data.

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