libcurl Buffer Overflow via old zlib 1.2.0.3 integer overflow (CURLOPT_ACCEPT_ENCODING)
CVE-2025-0725 Published on February 5, 2025
gzip integer overflow
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.
Vulnerability Analysis
CVE-2025-0725 can be exploited with network access, and does not require authorization privileges or user interaction. This vulnerability is considered to have a low attack complexity. An automatable proof of concept (POC) exploit exists. The potential impact of an exploit of this vulnerability is considered to be low. considered to have a small impact on confidentiality and integrity and availability.
Products Associated with CVE-2025-0725
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