CVE-2025-0725: gzip integer overflow
First published: Wed Feb 05 2025(Updated: )
When libcurl is asked to perform automatic gzip decompression of content-encoded HTTP responses with the `CURLOPT_ACCEPT_ENCODING` option, **using zlib 1.2.0.3 or older**, an attacker-controlled integer overflow would make libcurl perform a buffer overflow.
Credit: 2499f714-1537-4658-8207-48ae4bb9eae9
| Affected Software | Affected Version | How to fix |
|---|---|---|
| curl libcurl | <1.2.0.3 |
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Reference Links
Frequently Asked Questions
What is the severity of CVE-2025-0725?
CVE-2025-0725 has a critical severity due to the potential for an integer overflow leading to a buffer overflow.
How do I fix CVE-2025-0725?
To fix CVE-2025-0725, upgrade your libcurl to a version later than 1.2.0.3.
What versions of libcurl are affected by CVE-2025-0725?
CVE-2025-0725 affects libcurl versions 1.2.0.3 and older.
What security risks does CVE-2025-0725 pose?
CVE-2025-0725 can allow attackers to execute arbitrary code through a buffer overflow exploit.
Is it safe to use libcurl versions newer than 1.2.0.3 in relation to CVE-2025-0725?
Yes, using versions of libcurl newer than 1.2.0.3 mitigates the vulnerability identified in CVE-2025-0725.
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