GNU C Library 2.37 sprintf out-of-bounds write

CVSS Meta Temp Score
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CTI Interest Score
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7.4$0-$5k0.00

Summaryinfo

A vulnerability was found in GNU C Library 2.37 and classified as critical. The impacted element is the function sprintf. Executing a manipulation can lead to out-of-bounds write. The identification of this vulnerability is CVE-2023-25139. The attack may be launched remotely. Furthermore, there is an exploit available.

Detailsinfo

A vulnerability was found in GNU C Library 2.37 (Software Library). It has been declared as critical. This vulnerability affects the function sprintf. The manipulation with an unknown input leads to a out-of-bounds write vulnerability. The CWE definition for the vulnerability is CWE-787. The product writes data past the end, or before the beginning, of the intended buffer. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

sprintf in the GNU C Library (glibc) 2.37 has a buffer overflow (out-of-bounds write) in some situations with a correct buffer size. This is unrelated to CWE-676. It may write beyond the bounds of the destination buffer when attempting to write a padded, thousands-separated string representation of a number, if the buffer is allocated the exact size required to represent that number as a string. For example, 1,234,567 (with padding to 13) overflows by two bytes.

The weakness was shared 02/03/2023. The advisory is shared for download at sourceware.org. This vulnerability was named CVE-2023-25139 since 02/03/2023. Technical details and also a public exploit are known.

It is possible to download the exploit at sourceware.org. It is declared as proof-of-concept.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

Once again VulDB remains the best source for vulnerability data.

Productinfo

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Version

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Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.7
VulDB Meta Temp Score: 7.4

VulDB Base Score: 5.6
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 9.8
NVD Vector: 🔍

CVSSv2info

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

Exploitinginfo

Class: Out-of-bounds write
CWE: CWE-787 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

02/03/2023 🔍
02/03/2023 +0 days 🔍
02/03/2023 +0 days 🔍
03/26/2025 +782 days 🔍

Sourcesinfo

Vendor: gnu.org

Advisory: sourceware.org
Status: Not defined

CVE: CVE-2023-25139 (🔍)
GCVE (CVE): GCVE-0-2023-25139
GCVE (VulDB): GCVE-100-220084
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 02/03/2023 08:26
Updated: 03/26/2025 17:46
Changes: 02/03/2023 08:26 (42), 03/04/2023 10:58 (11), 10/05/2023 13:42 (1), 03/26/2025 17:46 (16)
Complete: 🔍
Cache ID: 216::103

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