VDB-225947 · CVE-2023-29469 · Bug 510

libxml2 Hash xmlDictComputeFastKey double free

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.
6.2	$0-$5k	0.00

Summaryinfo

A vulnerability, which was classified as problematic, has been found in libxml2. The impacted element is the function xmlDictComputeFastKey of the component Hash Handler. The manipulation leads to double free. This vulnerability is uniquely identified as CVE-2023-29469. No exploit exists.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in libxml2 (Document Processing Software) (affected version unknown). This issue affects the function xmlDictComputeFastKey of the component Hash Handler. The manipulation with an unknown input leads to a double free vulnerability. Using CWE to declare the problem leads to CWE-415. The product calls free() twice on the same memory address, potentially leading to modification of unexpected memory locations. Impacted is confidentiality, integrity, and availability.

The weakness was disclosed 04/14/2023. It is possible to read the advisory at bugzilla.redhat.com. The identification of this vulnerability is CVE-2023-29469 since 04/06/2023. Technical details of the vulnerability are known, but there is no available exploit.

The vulnerability scanner Nessus provides a plugin with the ID 236630 (Alibaba Cloud Linux 3 : 0111: libxml2 (ALINUX3-SA-2023:0111)), which helps to determine the existence of the flaw in a target environment.

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 (236630) and EUVD (EUVD-2023-33038). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Type

Document Processing Software

Name

libxml2

License

open-source

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.2
VulDB Meta Temp Score: 6.2

VulDB Base Score: 5.5
VulDB Temp Score: 5.5
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.5
NVD Vector: 🔍

CNA Base Score: 6.5
CNA Vector: 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Double free
CWE: CWE-415 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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

Nessus ID: 236630
Nessus Name: Alibaba Cloud Linux 3 : 0111: libxml2 (ALINUX3-SA-2023:0111)

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

04/06/2023 🔍
04/14/2023 +8 days 🔍
04/14/2023 +0 days 🔍
12/10/2025 +971 days 🔍

Sourcesinfo

Advisory: 510
Status: Not defined

CVE: CVE-2023-29469 (🔍)
GCVE (CVE): GCVE-0-2023-29469
GCVE (VulDB): GCVE-100-225947
EUVD: 🔍

Entryinfo

Created: 04/14/2023 11:25
Updated: 12/10/2025 08:39
Changes: 04/14/2023 11:25 (37), 05/03/2023 08:03 (2), 05/03/2023 08:09 (1), 05/03/2023 08:10 (1), 02/05/2025 09:55 (35), 05/19/2025 21:24 (2), 12/10/2025 08:39 (1)
Complete: 🔍
Cache ID: 216::103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.