libxml2 up to 2.11.5 tree.c xmlUnlinkNode use after free ⚔ [Disputed]

CVSS Meta Temp Score
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CTI Interest Score
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5.5$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as problematic, has been found in libxml2 up to 2.11.5. This issue affects the function xmlUnlinkNode of the file tree.c. The manipulation leads to use after free. This vulnerability is uniquely identified as CVE-2023-45322. No exploit exists. The actual existence of this vulnerability is currently in question.

Detailsinfo

A vulnerability was found in libxml2 up to 2.11.5 (Document Processing Software). It has been rated as problematic. This issue affects the function xmlUnlinkNode of the file tree.c. The manipulation with an unknown input leads to a use after free vulnerability. Using CWE to declare the problem leads to CWE-416. Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

** DISPUTED ** libxml2 through 2.11.5 has a use-after-free that can only occur after a certain memory allocation fails. This occurs in xmlUnlinkNode in tree.c. NOTE: the vendor's position is "I don't think these issues are critical enough to warrant a CVE ID ... because an attacker typically can't control when memory allocations fail."

The weakness was disclosed 10/07/2023 as 344. It is possible to read the advisory at gitlab.gnome.org. The identification of this vulnerability is CVE-2023-45322 since 10/06/2023. Technical details of the vulnerability are known, but there is no available exploit.

The real existence of this vulnerability is still doubted at the moment. The vulnerability scanner Nessus provides a plugin with the ID 214798 (CBL Mariner 2.0 Security Update: libxml2 (CVE-2023-45322)), 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 vulnerability database at Tenable (214798). Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Type

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.5
VulDB Meta Temp Score: 5.5

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

NVD Base Score: 6.5
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Use after free
CWE: CWE-416 / 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: 214798
Nessus Name: CBL Mariner 2.0 Security Update: libxml2 (CVE-2023-45322)

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

10/06/2023 🔍
10/07/2023 +1 days 🔍
10/07/2023 +0 days 🔍
01/30/2025 +481 days 🔍

Sourcesinfo

Advisory: 344
Status: Confirmed
Disputed: 🔍

CVE: CVE-2023-45322 (🔍)
GCVE (CVE): GCVE-0-2023-45322
GCVE (VulDB): GCVE-100-241487

Entryinfo

Created: 10/07/2023 08:27
Updated: 01/30/2025 14:15
Changes: 10/07/2023 08:27 (40), 08/03/2024 00:17 (26), 01/30/2025 14:15 (3)
Complete: 🔍
Cache ID: 216::103

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

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