libiberty Binary use after free

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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5.2$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as problematic, has been found in libiberty. This vulnerability affects unknown code of the component Binary Handler. Performing a manipulation results in use after free. This vulnerability is reported as CVE-2016-4487. The attack is possible to be carried out remotely. No exploit exists. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability was found in libiberty (affected version unknown). It has been classified as problematic. This affects an unknown functionality of the component Binary Handler. The manipulation with an unknown input leads to a use after free vulnerability. CWE is classifying the issue as CWE-416. Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code. This is going to have an impact on availability. The summary by CVE is:

Use-after-free vulnerability in libiberty allows remote attackers to cause a denial of service (segmentation fault and crash) via a crafted binary, related to "btypevec."

The bug was discovered 05/05/2016. The weakness was disclosed 02/24/2017 (oss-sec). It is possible to read the advisory at openwall.com. This vulnerability is uniquely identified as CVE-2016-4487 since 05/05/2016. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. The technical details are unknown and an exploit is not publicly available.

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 196831 (Ubuntu Security Notification for Valgrind Vulnerabilities (USN-3337-1)).

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 (92380) and SecurityFocus (BID 90025†). The entries VDB-96611, VDB-97283, VDB-97288 and VDB-97289 are pretty similar. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Name

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.4
VulDB Meta Temp Score: 5.3

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.5
NVD Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Use after free
CWE: CWE-416 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

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: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

05/04/2016 🔍
05/05/2016 +1 days 🔍
05/05/2016 +0 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 🔍
08/17/2020 +1269 days 🔍

Sourcesinfo

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

CVE: CVE-2016-4487 (🔍)
GCVE (CVE): GCVE-0-2016-4487
GCVE (VulDB): GCVE-100-97287
SecurityFocus: 90025 - GNU GCC 'getaddrinfo.c' Multiple Remote Code Execution Vulnerabilities
OSVDB: - CVE-2016-4487 - libiberty - Use-After-Free Issue

See also: 🔍

Entryinfo

Created: 02/25/2017 09:54
Updated: 08/17/2020 18:37
Changes: 02/25/2017 09:54 (71), 08/17/2020 18:37 (6)
Complete: 🔍
Cache ID: 216:B5A:103

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