Xmlsoft libxml2 2.9.2 Parser memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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4.6$0-$5k0.00

Summaryinfo

A vulnerability classified as critical was found in Xmlsoft libxml2 2.9.2. The affected element is an unknown function of the component Parser. The manipulation results in memory corruption. This vulnerability was named CVE-2015-7499. There is no available exploit. Upgrading the affected component is advised.

Detailsinfo

A vulnerability, which was classified as critical, was found in Xmlsoft libxml2 2.9.2 (Document Processing Software). Affected is an unknown function of the component Parser. The manipulation with an unknown input leads to a memory corruption vulnerability. CWE is classifying the issue as 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. This is going to have an impact on integrity. CVE summarizes:

Heap-based buffer overflow in the xmlGROW function in parser.c in libxml2 before 2.9.3 allows context-dependent attackers to obtain sensitive process memory information via unspecified vectors.

The weakness was presented 11/25/2015 (Website). The advisory is available at git.gnome.org. This vulnerability is traded as CVE-2015-7499 since 09/29/2015. The exploitability is told to be easy. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. The technical details are unknown and an exploit is not available.

The vulnerability scanner Nessus provides a plugin with the ID 87354 (Amazon Linux AMI : libxml2 (ALAS-2015-628)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Amazon Linux Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 351588 (Amazon Linux Security Advisory for libxml2: ALAS2-2019-1220).

Upgrading to version 2.9.3 eliminates this vulnerability. A possible mitigation has been published 3 weeks after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (108322), Tenable (87354), SecurityFocus (BID 79509†) and Vulnerability Center (SBV-54852†). See VDB-77250, VDB-79257, VDB-79258 and VDB-79334 for similar entries. If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

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Vendor

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Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 4.6

VulDB Base Score: 5.3
VulDB Temp Score: 4.6
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
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NVD Base Score: 🔍

Exploitinginfo

Class: Memory corruption
CWE: CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Unproven

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 87354
Nessus Name: Amazon Linux AMI : libxml2 (ALAS-2015-628)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 703430
OpenVAS Name: Debian Security Advisory DSA 3430-1 (libxml2 - security update)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Upgrade: libxml2 2.9.3
Patch: git.gnome.org

Timelineinfo

09/29/2015 🔍
11/25/2015 +57 days 🔍
11/25/2015 +0 days 🔍
11/26/2015 +1 days 🔍
12/08/2015 +12 days 🔍
12/14/2015 +6 days 🔍
12/15/2015 +1 days 🔍
12/15/2015 +0 days 🔍
06/28/2022 +2387 days 🔍

Sourcesinfo

Advisory: USN-2834-1
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2015-7499 (🔍)
GCVE (CVE): GCVE-0-2015-7499
GCVE (VulDB): GCVE-100-79338

OVAL: 🔍

X-Force: 108322 - Libxml2 parser errors unspecified
SecurityFocus: 79509
SecurityTracker: 1034243
Vulnerability Center: 54852 - Libxml2 Remote DoS due to Buffer Overflow in XmlGROW, Medium

See also: 🔍

Entryinfo

Created: 11/26/2015 11:50
Updated: 06/28/2022 08:09
Changes: 11/26/2015 11:50 (68), 05/11/2018 13:09 (10), 06/28/2022 08:03 (5), 06/28/2022 08:09 (1)
Complete: 🔍
Cache ID: 216::103

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