yasm 1.3.0.55.g101bc /libyasm/expr.c yasm_expr_create memory corruption

HistoryDiffrelatejsonxmlCTI

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.
5.5	$0-$5k	0.00

Summaryinfo

A vulnerability marked as critical has been reported in yasm 1.3.0.55.g101bc. This issue affects the function yasm_expr_create in the library /libyasm/expr.c. This manipulation causes memory corruption. This vulnerability is handled as CVE-2023-29580. There is not any exploit available.

Detailsinfo

A vulnerability was found in yasm 1.3.0.55.g101bc. It has been declared as critical. Affected by this vulnerability is the function yasm_expr_create in the library /libyasm/expr.c. The manipulation with an unknown input leads to a memory corruption vulnerability. The CWE definition for the vulnerability is 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. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

yasm 1.3.0.55.g101bc was discovered to contain a segmentation violation via the component yasm_expr_create at /libyasm/expr.c.

The weakness was released 04/12/2023 as 215. It is possible to read the advisory at github.com. This vulnerability is known as CVE-2023-29580 since 04/07/2023. Technical details of the vulnerability are known, but there is no available exploit.

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 EUVD (EUVD-2023-33121). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Name

yasm

Version

1.3.0.55.g101bc

License

open-source

Website

Product: https://github.com/yasm/yasm/

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

NVD Base Score: 5.5
NVD Vector: 🔍

CVSSv2info

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

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

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

Physical: Partially
Local: Yes
Remote: Partially

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

04/07/2023 🔍
04/12/2023 +5 days 🔍
04/12/2023 +0 days 🔍
12/11/2025 +974 days 🔍

Sourcesinfo

Product: github.com

Advisory: 215
Status: Confirmed

CVE: CVE-2023-29580 (🔍)
GCVE (CVE): GCVE-0-2023-29580
GCVE (VulDB): GCVE-100-225691
EUVD: 🔍

Entryinfo

Created: 04/12/2023 16:25
Updated: 12/11/2025 11:53
Changes: 04/12/2023 16:25 (39), 02/08/2025 04:59 (24), 12/11/2025 11:53 (1)
Complete: 🔍
Cache ID: 216::103

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