GNU C Library up to 2.24 libresolv res_query null pointer dereference

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

Summaryinfo

A vulnerability was found in GNU C Library up to 2.24 and classified as problematic. This impacts the function res_query of the component libresolv. Such manipulation leads to null pointer dereference. This vulnerability is listed as CVE-2015-5180. The attack may be performed from remote. There is no available exploit. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability was found in GNU C Library up to 2.24 (Software Library) and classified as problematic. Affected by this issue is the function res_query of the component libresolv. The manipulation with an unknown input leads to a null pointer dereference vulnerability. Using CWE to declare the problem leads to CWE-476. A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit. Impacted is availability. CVE summarizes:

res_query in libresolv in glibc before 2.25 allows remote attackers to cause a denial of service (NULL pointer dereference and process crash).

The bug was discovered 08/03/2015. The weakness was presented 06/27/2017 by Florian Weimer with Red Hat (Website). The advisory is shared for download at sourceware.org. This vulnerability is handled as CVE-2015-5180 since 07/01/2015. The attack may be launched remotely. No form of authentication is required for exploitation. There are known technical details, but no exploit is available.

The vulnerability was handled as a non-public zero-day exploit for at least 588 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 99204 (F5 Networks BIG-IP : glibc vulnerability (K55001100)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family F5 Networks Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 171603 (SUSE Enterprise Linux Security Update for glibc (SUSE-SU-2018:2883-1)).

Upgrading to version 2.25 eliminates this vulnerability. A possible mitigation has been published before and not just after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (99204) and SecurityFocus (BID 99324†). See VDB-108303, VDB-108402 and VDB-143746 for similar entries. VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

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Website

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: Null pointer dereference
CWE: CWE-476 / CWE-404
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: 99204
Nessus Name: F5 Networks BIG-IP : glibc vulnerability (K55001100)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 841810
OpenVAS Name: Ubuntu Update for glibc USN-3239-2
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: C Library 2.25
Patch: fc82b0a2dfe7dbd35671c10510a8da1043d746a5

Timelineinfo

07/01/2015 🔍
08/03/2015 +33 days 🔍
03/13/2017 +588 days 🔍
04/06/2017 +24 days 🔍
06/27/2017 +82 days 🔍
06/27/2017 +0 days 🔍
06/27/2017 +0 days 🔍
06/28/2017 +1 days 🔍
12/09/2022 +1990 days 🔍

Sourcesinfo

Vendor: gnu.org

Advisory: K55001100
Researcher: Florian Weimer
Organization: Red Hat
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2015-5180 (🔍)
GCVE (CVE): GCVE-0-2015-5180
GCVE (VulDB): GCVE-100-102848
SecurityFocus: 99324 - GNU glibc CVE-2015-5180 Remote Denial of Service Vulnerability

See also: 🔍

Entryinfo

Created: 06/28/2017 07:50
Updated: 12/09/2022 10:08
Changes: 06/28/2017 07:50 (77), 10/20/2019 18:26 (6), 12/09/2022 10:04 (5), 12/09/2022 10:08 (1)
Complete: 🔍
Cache ID: 216::103

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