Network Security Services hash.c __hash_open memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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6.4$0-$5k0.00

Summaryinfo

A vulnerability was found in Network Security Services. It has been rated as critical. This affects the function __hash_open of the file hash.c. The manipulation leads to memory corruption. This vulnerability is documented as CVE-2017-11697. The attack needs to be performed locally. Additionally, an exploit exists. To fix this issue, it is recommended to deploy a patch.

Detailsinfo

A vulnerability was found in Network Security Services (version unknown). It has been rated as critical. This issue affects the function __hash_open of the file hash.c. The manipulation with an unknown input leads to a memory corruption vulnerability. Using CWE to declare the problem leads to 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. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

The __hash_open function in hash.c:229 in Mozilla Network Security Services (NSS) allows context-dependent attackers to cause a denial of service (floating point exception and crash) via a crafted cert8.db file.

The bug was discovered 08/09/2017. The weakness was released 08/09/2017 by Brian Carpenter as confirmed mailinglist post (Full-Disclosure). It is possible to read the advisory at seclists.org. The identification of this vulnerability is CVE-2017-11697 since 07/27/2017. The exploitation is known to be easy. Attacking locally is a requirement. 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 packetstormsecurity.com. It is declared as proof-of-concept. The vulnerability scanner Nessus provides a plugin with the ID 232045 (Linux Distros Unpatched Vulnerability : CVE-2017-11697), which helps to determine the existence of the flaw in a target environment.

Applying the patch 13315:769f9ae07b10 is able to eliminate this problem.

The vulnerability is also documented in the databases at Tenable (232045), SecurityFocus (BID 100345†) and SecurityTracker (ID 1039153†). Entries connected to this vulnerability are available at VDB-105369, VDB-105370 and VDB-105372. 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: 6.5
VulDB Meta Temp Score: 6.3

VulDB Base Score: 5.3
VulDB Temp Score: 4.8
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.8
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: Partially
Local: Yes
Remote: No

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

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 232045
Nessus Name: Linux Distros Unpatched Vulnerability : CVE-2017-11697

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔍

Patch: 13315:769f9ae07b10

Timelineinfo

07/27/2017 🔍
08/09/2017 +13 days 🔍
08/09/2017 +0 days 🔍
08/09/2017 +0 days 🔍
08/15/2017 +6 days 🔍
08/16/2017 +1 days 🔍
12/27/2017 +133 days 🔍
03/07/2025 +2627 days 🔍

Sourcesinfo

Advisory: 143735
Researcher: Brian Carpenter
Status: Confirmed

CVE: CVE-2017-11697 (🔍)
GCVE (CVE): GCVE-0-2017-11697
GCVE (VulDB): GCVE-100-105371
SecurityFocus: 100345 - Mozilla NSS Multiple Heap Buffer Overflow and Denial of Service Vulnerabilities
SecurityTracker: 1039153

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

Entryinfo

Created: 08/16/2017 04:06
Updated: 03/07/2025 10:47
Changes: 08/16/2017 04:06 (64), 11/07/2019 13:57 (5), 12/15/2022 18:52 (4), 06/23/2024 02:32 (21), 03/07/2025 10:47 (2)
Complete: 🔍
Cache ID: 216::103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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