StringIO 3.0.1/3.0.2 ungetbyte/ungetc buffer overflow

CVSS Meta Temp Score
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CTI Interest Score
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5.1$0-$5k0.00

Summaryinfo

A vulnerability was found in StringIO 3.0.1/3.0.2. It has been rated as critical. This affects the function ungetbyte/ungetc. The manipulation leads to buffer overflow. This vulnerability is referenced as CVE-2024-27280. Remote exploitation of the attack is possible. No exploit is available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability was found in StringIO 3.0.1/3.0.2. It has been rated as critical. This issue affects the function ungetbyte/ungetc. The manipulation with an unknown input leads to a buffer overflow vulnerability. Using CWE to declare the problem leads to CWE-120. The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer, leading to a buffer overflow. Impacted is confidentiality. The summary by CVE is:

A buffer-overread issue was discovered in StringIO 3.0.1, as distributed in Ruby 3.0.x through 3.0.6 and 3.1.x through 3.1.4. The ungetbyte and ungetc methods on a StringIO can read past the end of a string, and a subsequent call to StringIO.gets may return the memory value. 3.0.3 is the main fixed version; however, for Ruby 3.0 users, a fixed version is stringio 3.0.1.1, and for Ruby 3.1 users, a fixed version is stringio 3.0.1.2.

The advisory is shared at bugzilla.redhat.com. The identification of this vulnerability is CVE-2024-27280 since 02/22/2024. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Technical details are known, but no exploit is available.

The vulnerability scanner Nessus provides a plugin with the ID 214415 (EulerOS 2.0 SP8 : ruby (EulerOS-SA-2025-1129)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 3.0.3 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (214415). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 5.1

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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

Exploitinginfo

Class: Buffer overflow
CWE: CWE-120 / 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: 214415
Nessus Name: EulerOS 2.0 SP8 : ruby (EulerOS-SA-2025-1129)

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: StringIO 3.0.3

Timelineinfo

02/22/2024 🔍
03/22/2024 +29 days 🔍
03/22/2024 +0 days 🔍
05/03/2025 +407 days 🔍

Sourcesinfo

Advisory: bugzilla.redhat.com
Status: Confirmed

CVE: CVE-2024-27280 (🔍)
GCVE (CVE): GCVE-0-2024-27280
GCVE (VulDB): GCVE-100-257705

Entryinfo

Created: 03/22/2024 07:45
Updated: 05/03/2025 10:03
Changes: 03/22/2024 07:45 (52), 01/21/2025 23:29 (3), 05/03/2025 10:03 (2)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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