sfackler openssl Crate up to 0.10.54 on Rust set_host buffer over-read

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.
4.0	$0-$5k	0.00

Summaryinfo

A vulnerability, which was classified as problematic, was found in sfackler openssl Crate up to 0.10.54 on Rust. Impacted is the function X509VerifyParamRef::set_host. Executing a manipulation can lead to buffer over-read. This vulnerability is tracked as CVE-2023-53159. The attack is restricted to local execution. No exploit exists. You should upgrade the affected component.

Detailsinfo

A vulnerability classified as problematic was found in sfackler openssl Crate up to 0.10.54 on Rust. This vulnerability affects the function X509VerifyParamRef::set_host. The manipulation with an unknown input leads to a buffer over-read vulnerability. The CWE definition for the vulnerability is CWE-126. The product reads from a buffer using buffer access mechanisms such as indexes or pointers that reference memory locations after the targeted buffer. As an impact it is known to affect confidentiality, and availability. CVE summarizes:

The openssl crate before 0.10.55 for Rust allows an out-of-bounds read via an empty string to X509VerifyParamRef::set_host.

The advisory is shared for download at rustsec.org. This vulnerability was named CVE-2023-53159 since 07/28/2025. The exploitation appears to be difficult. The attack needs to be approached locally. There are known technical details, but no exploit is available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 12/04/2025).

The vulnerability scanner Nessus provides a plugin with the ID 277314 (Ubuntu 20.04 LTS / 22.04 LTS / 24.04 LTS : rust-openssl vulnerabilities (USN-7891-1)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 0.10.55 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (277314). VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Type

• Network Encryption Software

Vendor

• sfackler

Name

• openssl Crate

Version

• 0.10.0
• 0.10.1
• 0.10.2
• 0.10.3
• 0.10.4
• 0.10.5
• 0.10.6
• 0.10.7
• 0.10.8
• 0.10.9
• 0.10.10
• 0.10.11
• 0.10.12
• 0.10.13
• 0.10.14
• 0.10.15
• 0.10.16
• 0.10.17
• 0.10.18
• 0.10.19
• 0.10.20
• 0.10.21
• 0.10.22
• 0.10.23
• 0.10.24
• 0.10.25
• 0.10.26
• 0.10.27
• 0.10.28
• 0.10.29
• 0.10.30
• 0.10.31
• 0.10.32
• 0.10.33
• 0.10.34
• 0.10.35
• 0.10.36
• 0.10.37
• 0.10.38
• 0.10.39
• 0.10.40
• 0.10.41
• 0.10.42
• 0.10.43
• 0.10.44
• 0.10.45
• 0.10.46
• 0.10.47
• 0.10.48
• 0.10.49
• 0.10.50
• 0.10.51
• 0.10.52
• 0.10.53
• 0.10.54

License

• open-source

CPE 2.3info

• 🔒
• 🔒
• 🔒

CPE 2.2info

• 🔒
• 🔒
• 🔒

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.0
VulDB Meta Temp Score: 4.0

VulDB Base Score: 3.6
VulDB Temp Score: 3.5
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 4.5
CNA Vector (MITRE): 🔒

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: Buffer over-read
CWE: CWE-126 / CWE-119
CAPEC: 🔒
ATT&CK: 🔒

Physical: Partially
Local: Yes
Remote: No

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: 277314
Nessus Name: Ubuntu 20.04 LTS / 22.04 LTS / 24.04 LTS : rust-openssl vulnerabilities (USN-7891-1)

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: openssl Crate 0.10.55

Timelineinfo

07/28/2025 Advisory disclosed
07/28/2025 +0 days CVE reserved
07/28/2025 +0 days VulDB entry created
12/04/2025 +129 days VulDB entry last update

Sourcesinfo

Advisory: 1965
Status: Confirmed

CVE: CVE-2023-53159 (🔒)
GCVE (CVE): GCVE-0-2023-53159
GCVE (VulDB): GCVE-100-317872

Entryinfo

Created: 07/28/2025 07:46
Updated: 12/04/2025 22:48
Changes: 07/28/2025 07:46 (66), 12/04/2025 22:48 (2)
Complete: 🔍
Cache ID: 216::103

VulDB is the best source for vulnerability data and more expert information about this specific topic.

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