Xiph.Org libvorbis 1.3.5 OGG File lib/block.c vorbis_block_clear null pointer dereference

HistoryDiffrelatejsonxmlCTI

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
4.8	$0-$5k	0.00

Summaryinfo

A vulnerability identified as problematic has been detected in Xiph.Org libvorbis 1.3.5. This vulnerability affects the function vorbis_block_clear in the library lib/block.c of the component OGG File Handler. This manipulation causes null pointer dereference. This vulnerability is handled as CVE-2017-11735. The attack can be initiated remotely. Additionally, an exploit exists. You should upgrade the affected component.

Detailsinfo

A vulnerability has been found in Xiph.Org libvorbis 1.3.5 and classified as problematic. Affected by this vulnerability is the function vorbis_block_clear in the library lib/block.c of the component OGG File Handler. The manipulation with an unknown input leads to a null pointer dereference vulnerability. The CWE definition for the vulnerability is 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. As an impact it is known to affect availability. The summary by CVE is:

The vorbis_block_clear function in lib/block.c in Xiph.Org libvorbis 1.3.5 allows remote attackers to cause a denial of service (NULL pointer dereference and application crash) via a crafted ogg file.

The bug was discovered 07/30/2017. The weakness was released 07/31/2017 (Website). The advisory is shared at seclists.org. This vulnerability is known as CVE-2017-11735 since 07/29/2017. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Technical details and also a public exploit are known.

It is possible to download the exploit at exploit-db.com. It is declared as proof-of-concept. The vulnerability was handled as a non-public zero-day exploit for at least 1 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 121318 (Fedora 29 : mingw-libvorbis (2019-2e385f97e2)), 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. The commercial vulnerability scanner Qualys is able to test this issue with plugin 277425 (Fedora Security Update for libvorbis (FEDORA-2018-0259281ab6)).

Upgrading eliminates this vulnerability. A possible mitigation has been published 2 years after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Exploit-DB (42399) and Tenable (121318). Entries connected to this vulnerability are available at VDB-104686, VDB-106940, VDB-106950 and VDB-107596. If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Vendor

Xiph.Org

Name

libvorbis

Version

1.3.5

CPE 2.3info

🔍

CPE 2.2info

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CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 4.8

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

CVSSv2info

AV	AC	Au	C	I	A
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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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VulDB Base Score: 🔍
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NVD Base Score: 🔍

Exploitinginfo

Class: Null pointer dereference
CWE: CWE-476 / CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Download: 🔍
Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Nessus ID: 121318
Nessus Name: Fedora 29 : mingw-libvorbis (2019-2e385f97e2)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Timelineinfo

07/29/2017 🔍
07/30/2017 +1 days 🔍
07/31/2017 +1 days 🔍
07/31/2017 +0 days 🔍
08/01/2017 +1 days 🔍
01/22/2019 +539 days 🔍
01/23/2019 +1 days 🔍
12/16/2024 +2154 days 🔍

Sourcesinfo

Advisory: seclists.org
Status: Confirmed

CVE: CVE-2017-11735 (🔍)
GCVE (CVE): GCVE-0-2017-11735
GCVE (VulDB): GCVE-100-104701
scip Labs: https://www.scip.ch/en/?labs.20161013
See also: 🔍

Entryinfo

Created: 08/01/2017 08:56
Updated: 12/16/2024 04:38
Changes: 08/01/2017 08:56 (47), 11/02/2019 17:45 (18), 01/06/2021 17:57 (8), 12/16/2024 04:38 (16)
Complete: 🔍
Cache ID: 216::103

If you want to get the best quality for vulnerability data then you always have to consider VulDB.