libxml2 HTML Document dict.c 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 classified as problematic has been found in libxml2. The affected element is an unknown function of the file dict.c of the component HTML Document Handler. The manipulation leads to memory corruption. This vulnerability is traded as CVE-2015-8806. It is possible to initiate the attack remotely. There is no exploit available.

Detailsinfo

A vulnerability was found in libxml2 (Document Processing Software) (version now known) and classified as problematic. This issue affects some unknown processing of the file dict.c of the component HTML Document Handler. 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 availability. The summary by CVE is:

dict.c in libxml2 allows remote attackers to cause a denial of service (heap-based buffer over-read and application crash) via an unexpected character immediately after the "<!DOCTYPE html" substring in a crafted HTML document.

The weakness was shared 04/13/2016 (Website). It is possible to read the advisory at openwall.com. The identification of this vulnerability is CVE-2015-8806. 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 vulnerability scanner Nessus provides a plugin with the ID 93154 (SUSE SLES11 Security Update : libxml2 (SUSE-SU-2016:1604-1)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family SuSE Local Security Checks. The commercial vulnerability scanner Qualys is able to test this issue with plugin 370490 (F5 BIG-IP ASM libxml2 Denial of Service Vulnerability (K04450715)).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the databases at Tenable (93154) and SecurityFocus (BID 82071†). The entries VDB-80763, VDB-81414, VDB-81506 and VDB-87473 are related to this item. Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Type

Name

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.4
VulDB Meta Temp Score: 6.4

VulDB Base Score: 5.3
VulDB Temp Score: 5.3
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: Memory corruption
CWE: CWE-119
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: 93154
Nessus Name: SUSE SLES11 Security Update : libxml2 (SUSE-SU-2016:1604-1)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

OpenVAS ID: 800325
OpenVAS Name: F5 BIG-IP - libxml2 vulnerability CVE-2015-8806
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

Timelineinfo

02/03/2016 🔍
04/13/2016 +69 days 🔍
04/13/2016 +0 days 🔍
04/14/2016 +1 days 🔍
07/24/2022 +2292 days 🔍

Sourcesinfo

Advisory: USN-2994-1
Status: Not defined

CVE: CVE-2015-8806 (🔍)
GCVE (CVE): GCVE-0-2015-8806
GCVE (VulDB): GCVE-100-82319

OVAL: 🔍

SecurityFocus: 82071

See also: 🔍

Entryinfo

Created: 04/14/2016 09:57
Updated: 07/24/2022 10:31
Changes: 04/14/2016 09:57 (37), 01/27/2018 12:40 (21), 07/24/2022 10:19 (4), 07/24/2022 10:26 (11), 07/24/2022 10:31 (1)
Complete: 🔍
Cache ID: 216::103

Be aware that VulDB is the high quality source for vulnerability data.

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