uClibc/uClibc-ng up to 1.0.15 libc/string/arm/memset.S memset length memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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6.3$0-$5k0.00

Summaryinfo

A vulnerability identified as problematic has been detected in uClibc and uClibc-ng up to 1.0.15. This impacts the function memset of the file libc/string/arm/memset.S. Performing a manipulation of the argument length with the input -1 results in memory corruption. This vulnerability is known as CVE-2016-6264. Remote exploitation of the attack is possible. No exploit is available. You should upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as problematic, was found in uClibc and uClibc-ng up to 1.0.15. This affects the function memset of the file libc/string/arm/memset.S. The manipulation of the argument length with the input value -1 leads to a memory corruption vulnerability. CWE is classifying the issue as CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. This is going to have an impact on availability. The summary by CVE is:

Integer signedness error in libc/string/arm/memset.S in uClibc and uClibc-ng before 1.0.16 allows context-dependent attackers to cause a denial of service (crash) via a negative length value to the memset function.

The bug was discovered 01/27/2017. The weakness was published 01/27/2017 (Website). The advisory is shared at mailman.uclibc-ng.org. This vulnerability is uniquely identified as CVE-2016-6264 since 07/21/2016. 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 are known, but no exploit is available.

The vulnerability scanner Nessus provides a plugin with the ID 93140 (Fedora 24 : uClibc (2016-53cc023dd6)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Fedora Local Security Checks and running in the context l.

Upgrading to version 1.0.16 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 (93140) and SecurityFocus (BID 91492†). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.4
VulDB Meta Temp Score: 6.3

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

NVD Base Score: 7.5
NVD Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Memory corruption
CWE: 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: 93140
Nessus Name: Fedora 24 : uClibc (2016-53cc023dd6)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 841574
OpenVAS Name: Fedora Update for uClibc FEDORA-2016-417ceefc85
OpenVAS File: 🔍
OpenVAS Family: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: uClibc/uClibc-ng 1.0.16

Timelineinfo

06/29/2016 🔍
07/21/2016 +22 days 🔍
08/27/2016 +37 days 🔍
08/29/2016 +2 days 🔍
01/27/2017 +151 days 🔍
01/27/2017 +0 days 🔍
01/27/2017 +0 days 🔍
01/28/2017 +1 days 🔍
05/15/2026 +3394 days 🔍

Sourcesinfo

Advisory: FEDORA-2016-53cc023dd6
Status: Confirmed

CVE: CVE-2016-6264 (🔍)
GCVE (CVE): GCVE-0-2016-6264
GCVE (VulDB): GCVE-100-96105
SecurityFocus: 91492 - uclibc-ng and uclibc 'memset.S' Remote Code Execution Vulnerability
OSVDB: - CVE-2016-6264 - uClibc and uClibc-ng - Denial of Service Issue

Entryinfo

Created: 01/28/2017 09:09
Updated: 05/15/2026 02:13
Changes: 01/28/2017 09:09 (71), 08/04/2020 21:33 (6), 11/04/2022 12:22 (4), 05/15/2026 02:13 (17)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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