Quagga up to 1.2.1 bgpd/bgp_aspath.c aspath_put BGP UPDATE input validation

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

Summaryinfo

A vulnerability described as problematic has been identified in Quagga up to 1.2.1. Affected is the function aspath_put of the file bgpd/bgp_aspath.c. Executing a manipulation as part of BGP UPDATE can lead to input validation. This vulnerability appears as CVE-2017-16227. The attack may be performed from remote. There is no available exploit. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability has been found in Quagga up to 1.2.1 (Network Routing Software) and classified as problematic. This vulnerability affects the function aspath_put of the file bgpd/bgp_aspath.c. The manipulation as part of a BGP UPDATE leads to a input validation vulnerability. The CWE definition for the vulnerability is CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. As an impact it is known to affect availability. CVE summarizes:

The aspath_put function in bgpd/bgp_aspath.c in Quagga before 1.2.2 allows remote attackers to cause a denial of service (session drop) via BGP UPDATE messages, because AS_PATH size calculation for long paths counts certain bytes twice and consequently constructs an invalid message.

The bug was discovered 10/29/2017. The weakness was presented 10/29/2017 (Website). The advisory is available at download.savannah.gnu.org. This vulnerability was named CVE-2017-16227 since 10/29/2017. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Technical details are known, but there is no available exploit.

The vulnerability scanner Nessus provides a plugin with the ID 104259 (Debian DSA-4011-1 : quagga - 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 170766 (SUSE Enterprise Linux Security Update for quagga (SUSE-SU-2018:0457-1)).

Upgrading to version 1.2.2 eliminates this vulnerability. A possible mitigation has been published 1 days after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (104259) and SecurityFocus (BID 103105†). See VDB-95874, VDB-113585, VDB-113586 and VDB-113587 for similar entries. If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

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Name

Version

License

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: 🔍
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NVD Base Score: 🔍

Exploitinginfo

Class: Input validation
CWE: CWE-20
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: 104259
Nessus Name: Debian DSA-4011-1 : quagga - security update
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 53380
OpenVAS Name: Debian Security Advisory DSA 4011-1 (quagga - security update)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Upgrade: Quagga 1.2.2
Patch: git.savannah.gnu.org

Timelineinfo

10/29/2017 🔍
10/29/2017 +0 days 🔍
10/29/2017 +0 days 🔍
10/29/2017 +0 days 🔍
10/30/2017 +1 days 🔍
10/30/2017 +0 days 🔍
10/31/2017 +1 days 🔍
02/15/2018 +107 days 🔍
01/05/2023 +1785 days 🔍

Sourcesinfo

Advisory: download.savannah.gnu.org
Status: Confirmed

CVE: CVE-2017-16227 (🔍)
GCVE (CVE): GCVE-0-2017-16227
GCVE (VulDB): GCVE-100-108778

OVAL: 🔍

SecurityFocus: 103105 - Quagga CVE-2018-5379 Remote Code Execution Vulnerability

See also: 🔍

Entryinfo

Created: 10/30/2017 08:08
Updated: 01/05/2023 11:45
Changes: 10/30/2017 08:08 (78), 12/02/2019 08:06 (4), 01/05/2023 11:45 (4)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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