libiberty cplus-dem.c string_appends integer overflow

CVSS Meta Temp Score
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CTI Interest Score
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7.2$0-$5k0.00

Summaryinfo

A vulnerability marked as critical has been reported in libiberty. Affected is the function string_appends of the file cplus-dem.c. The manipulation leads to integer overflow. This vulnerability is listed as CVE-2016-2226. The attack may be initiated remotely. In addition, an exploit is available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as critical, has been found in libiberty (the affected version is unknown). This issue affects the function string_appends of the file cplus-dem.c. The manipulation with an unknown input leads to a integer overflow vulnerability. Using CWE to declare the problem leads to CWE-190. 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 can introduce other weaknesses when the calculation is used for resource management or execution control. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

Integer overflow in the string_appends function in cplus-dem.c in libiberty allows remote attackers to execute arbitrary code via a crafted executable, which triggers a buffer overflow.

The bug was discovered 05/05/2016. The weakness was presented 02/24/2017 (oss-sec). It is possible to read the advisory at openwall.com. The identification of this vulnerability is CVE-2016-2226 since 02/06/2016. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Technical details as well as a public exploit are known.

The exploit is available at exploit-db.com. It is declared as proof-of-concept. The vulnerability was handled as a non-public zero-day exploit for at least 74 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 92380 (Debian DLA-552-1 : binutils 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 196861 (Ubuntu Security Notification for Gdb Vulnerabilities (USN-3367-1)).

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 Exploit-DB (42386), Tenable (92380) and SecurityFocus (BID 90103†). See VDB-96611, VDB-97287, VDB-97288 and VDB-97289 for similar entries. If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.5
VulDB Meta Temp Score: 7.2

VulDB Base Score: 7.3
VulDB Temp Score: 6.6
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.8
NVD Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
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Exploitinginfo

Class: Integer overflow
CWE: CWE-190 / CWE-189
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: Yes

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Download: 🔍

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Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 92380
Nessus Name: Debian DLA-552-1 : binutils security update
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 841810
OpenVAS Name: Ubuntu Update for libiberty USN-3368-1
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

02/06/2016 🔍
05/04/2016 +88 days 🔍
05/05/2016 +1 days 🔍
07/18/2016 +74 days 🔍
07/19/2016 +1 days 🔍
02/24/2017 +220 days 🔍
02/24/2017 +0 days 🔍
02/25/2017 +1 days 🔍
09/19/2024 +2763 days 🔍

Sourcesinfo

Advisory: openwall.com
Status: Not defined
Confirmation: 🔍

CVE: CVE-2016-2226 (🔍)
GCVE (CVE): GCVE-0-2016-2226
GCVE (VulDB): GCVE-100-97283
SecurityFocus: 90103 - GNU libiberty CVE-2016-2226 Buffer Overflow Vulnerability
OSVDB: - CVE-2016-2226 - libiberty - Integer Overflow Issue

scip Labs: https://www.scip.ch/en/?labs.20161013
See also: 🔍

Entryinfo

Created: 02/25/2017 09:52
Updated: 09/19/2024 15:00
Changes: 02/25/2017 09:52 (73), 08/17/2020 18:23 (9), 09/19/2024 15:00 (16)
Complete: 🔍
Cache ID: 216:A24:103

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