The libcurl API function called `curl_maprintf()` before version 7.51.0 can be tricked into doing a double-free due to an unsafe `size_t` multiplication, on systems using 32 bit `size_t` variables.
CVSS Details
- CVSS 3.1 Base Score: 5.3
- CVSS 3.0 Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alpine Linux | — | Upgrade curl | Jul 31, 2018 | Jul 31, 2018 |
| Amazon_linux | — | Upgrade curl | Nov 11, 2016 | Nov 2, 2016 |
| Apple Osx Curl | — | Upgrade macOS to the latest version | Dec 16, 2016 | Dec 16, 2016 |
| Arch Linux | — | Upgrade to the latest version of Arch Linux | Jul 11, 2025 | Jul 31, 2018 |
| Debian | — | Upgrade curl | Nov 4, 2016 | Nov 2, 2016 |
| F5 Big Ip | — | Update F5 BIG-IP to the latest version | Jun 17, 2026 | Apr 21, 2017 |
| Freebsd | — | Upgrade curl | Nov 14, 2016 | Nov 2, 2016 |
| Gentoo Linux | — | Upgrade net-misc/curl. | Oct 30, 2017 | Jan 19, 2017 |
| Huawei Euleros 2_0_sp1 | — | Upgrade curlUpgrade libcurl-develUpgrade libcurl | Aug 28, 2019 | Jul 31, 2018 |
| Huawei Euleros 2_0_sp2 | — | Upgrade libcurl-develUpgrade curlUpgrade libcurl | Aug 28, 2019 | Jul 31, 2018 |
| Oracle Solaris | — | Upgrade web/curl to version 7.45.0-0.175.3.18.0.1.0 on Solaris 11.3 | May 29, 2017 | May 29, 2017 |
| Oracle_linux | — | Upgrade libcurlUpgrade libcurl-develUpgrade curl | May 22, 2019 | Nov 2, 2016 |
| Redhat_linux | — | No solution exists | Jul 9, 2025 | Jul 31, 2018 |
| Suse | — | Upgrade sles12-docker-imageUpgrade sles12sp1-docker-imageUpgrade libcurl4Upgrade libcurl4-x86Upgrade libcurl-develUpgrade curlUpgrade curl-openssl1Upgrade libcurl4-openssl1Upgrade libcurl4-openssl1-x86Upgrade libcurl4-32bitUpgrade libcurl4-openssl1-32bit | Nov 3, 2016 | Nov 2, 2016 |
| Ubuntu | — | Upgrade libcurl3-gnutlsUpgrade libcurl3-nssUpgrade libcurl3 | Nov 3, 2016 | Nov 2, 2016 |
Prioritise with Active Threat Intelligence
With curated Threat Intelligence, you can see which vulnerabilities truly put you at risk, prioritize what matters most, and act before attackers do.
Explore Intelligence Hub