SB2025020531 - Multiple vulnerabilities in cURL

Description

This security bulletin contains information about 3 secuirty vulnerabilities.

1) Information disclosure (CVE-ID: CVE-2025-0167)

The vulnerability allows a remote attacker to gain access to potentially sensitive information.

The vulnerability exists due to application can leak credentials when asked to use a .netrc file for credentials and to follow HTTP redirects. A remote attacker can gain access to sensitive information.

2) Resource management error (CVE-ID: CVE-2025-0665)

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to improper management of internal resources within the application when built with the threaded resolver. A remote attacker can force the application to wrongly close the same eventfd file descriptor twice when taking down a connection channel after having completed a threaded name resolve

3) Integer overflow (CVE-ID: CVE-2025-0725)

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to integer overflow when handling gzip decompression of content-encoded HTTP responses with the CURLOPT_ACCEPT_ENCODING option using zlib 1.2.0.3 or older. A remote attacker can send specially crafted response to the application, trigger an integer overflow and execute arbitrary code on the target system.

Remediation

Install update from vendor's website.

References

• https://curl.se/docs/CVE-2025-0167.html
• https://curl.se/docs/CVE-2025-0665.html
• https://curl.se/docs/CVE-2025-0725.html