Nettle 3.1 ecc-256.c ecc_256_modp 7pk security

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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9.6$0-$5k0.00

A vulnerability was found in Nettle 3.1. It has been rated as very critical. This issue affects the function ecc_256_modp of the file ecc-256.c. The manipulation with an unknown input leads to a privilege escalation vulnerability. Using CWE to declare the problem leads to CWE-254. Impacted is confidentiality, integrity, and availability.

The weakness was released 02/23/2016 (Website). It is possible to read the advisory at lists.lysator.liu.se. The identification of this vulnerability is CVE-2015-8803 since 02/01/2016. 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 of the vulnerability are known, but there is no available exploit. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 07/08/2022). The attack technique deployed by this issue is T1211 according to MITRE ATT&CK.

The vulnerability scanner Nessus provides a plugin with the ID 88771 (openSUSE Security Update : libnettle (openSUSE-2016-211)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family SuSE Local Security Checks and running in the context local. The commercial vulnerability scanner Qualys is able to test this issue with plugin 157291 (Oracle Enterprise Linux Security Update for nettle (ELSA-2016-2582)).

Upgrading to version 3.2 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 Vulnerability Center (SBV-56869) and Tenable (88771). Entries connected to this vulnerability are available at 81072 and 81073.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv3info

VulDB Meta Base Score: 9.8
VulDB Meta Temp Score: 9.6

VulDB Base Score: 9.8
VulDB Temp Score: 9.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 9.8
NVD Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
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VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Privilege escalation
CWE: CWE-254
ATT&CK: T1211

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 88771
Nessus Name: openSUSE Security Update : libnettle (openSUSE-2016-211)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 867773
OpenVAS Name: Fedora Update for compat-nettle27 FEDORA-2016-d94300845b
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Nettle 3.2
Patch: git.lysator.liu.se

Timelineinfo

02/01/2016 🔍
02/09/2016 +8 days 🔍
02/15/2016 +6 days 🔍
02/16/2016 +1 days 🔍
02/23/2016 +6 days 🔍
02/23/2016 +0 days 🔍
02/24/2016 +1 days 🔍
03/01/2016 +6 days 🔍
07/08/2022 +2319 days 🔍

Sourcesinfo

Advisory: USN-2897-1
Status: Not defined
Confirmation: 🔍

CVE: CVE-2015-8803 (🔍)
Vulnerability Center: 56869 - Nettle before 3.2 Local Unspecified Vulnerability in ecc-256.c - CVE-2015-8803, Medium

See also: 🔍

Entryinfo

Created: 02/24/2016 09:28 AM
Updated: 07/08/2022 01:07 PM
Changes: (1) advisory_identifier
Complete: 🔍

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