Heap-based buffer overflow in the curl_easy_unescape function in lib/escape.c in cURL and libcurl 7.7 through 7.30.0 allows remote attackers to cause a denial of service (application crash) or possibly execute arbitrary code via a crafted string ending in a "%" (percent) character.
2013-07-31T13:20:25.267
2025-04-11T00:51:21.963
Deferred
CVSSv2: 6.8 (MEDIUM)
AV:N/AC:M/Au:N/C:P/I:P/A:P
8.6
6.4
| Type | Vendor | Product | Version/Range | Vulnerable? |
|---|---|---|---|---|
| Application | haxx | curl | 7.7 | Yes |
| Application | haxx | curl | 7.7.1 | Yes |
| Application | haxx | curl | 7.7.2 | Yes |
| Application | haxx | curl | 7.7.3 | Yes |
| Application | haxx | curl | 7.8 | Yes |
| Application | haxx | curl | 7.8.1 | Yes |
| Application | haxx | curl | 7.9 | Yes |
| Application | haxx | curl | 7.9.1 | Yes |
| Application | haxx | curl | 7.9.2 | Yes |
| Application | haxx | curl | 7.9.3 | Yes |
| Application | haxx | curl | 7.9.4 | Yes |
| Application | haxx | curl | 7.9.5 | Yes |
| Application | haxx | curl | 7.9.6 | Yes |
| Application | haxx | curl | 7.9.7 | Yes |
| Application | haxx | curl | 7.9.8 | Yes |
| Application | haxx | curl | 7.10 | Yes |
| Application | haxx | curl | 7.10.1 | Yes |
| Application | haxx | curl | 7.10.2 | Yes |
| Application | haxx | curl | 7.10.3 | Yes |
| Application | haxx | curl | 7.10.4 | Yes |
| Application | haxx | curl | 7.10.5 | Yes |
| Application | haxx | curl | 7.10.6 | Yes |
| Application | haxx | curl | 7.10.7 | Yes |
| Application | haxx | curl | 7.10.8 | Yes |
| Application | haxx | curl | 7.11.0 | Yes |
| Application | haxx | curl | 7.11.1 | Yes |
| Application | haxx | curl | 7.11.2 | Yes |
| Application | haxx | curl | 7.12.0 | Yes |
| Application | haxx | curl | 7.12.1 | Yes |
| Application | haxx | curl | 7.12.2 | Yes |
| Application | haxx | curl | 7.12.3 | Yes |
| Application | haxx | curl | 7.13.0 | Yes |
| Application | haxx | curl | 7.13.1 | Yes |
| Application | haxx | curl | 7.13.2 | Yes |
| Application | haxx | curl | 7.14.0 | Yes |
| Application | haxx | curl | 7.14.1 | Yes |
| Application | haxx | curl | 7.15.0 | Yes |
| Application | haxx | curl | 7.15.1 | Yes |
| Application | haxx | curl | 7.15.2 | Yes |
| Application | haxx | curl | 7.15.3 | Yes |
| Application | haxx | curl | 7.15.4 | Yes |
| Application | haxx | curl | 7.15.5 | Yes |
| Application | haxx | curl | 7.16.0 | Yes |
| Application | haxx | curl | 7.16.1 | Yes |
| Application | haxx | curl | 7.16.2 | Yes |
| Application | haxx | curl | 7.16.3 | Yes |
| Application | haxx | curl | 7.16.4 | Yes |
| Application | haxx | curl | 7.17.0 | Yes |
| Application | haxx | curl | 7.17.1 | Yes |
| Application | haxx | curl | 7.18.0 | Yes |
| Application | haxx | curl | 7.18.1 | Yes |
| Application | haxx | curl | 7.18.2 | Yes |
| Application | haxx | curl | 7.19.0 | Yes |
| Application | haxx | curl | 7.19.1 | Yes |
| Application | haxx | curl | 7.19.2 | Yes |
| Application | haxx | curl | 7.19.3 | Yes |
| Application | haxx | curl | 7.19.4 | Yes |
| Application | haxx | curl | 7.19.5 | Yes |
| Application | haxx | curl | 7.19.6 | Yes |
| Application | haxx | curl | 7.19.7 | Yes |
| Application | haxx | curl | 7.20.0 | Yes |
| Application | haxx | curl | 7.20.1 | Yes |
| Application | haxx | curl | 7.21.0 | Yes |
| Application | haxx | curl | 7.21.1 | Yes |
| Application | haxx | curl | 7.21.2 | Yes |
| Application | haxx | curl | 7.21.3 | Yes |
| Application | haxx | curl | 7.21.4 | Yes |
| Application | haxx | curl | 7.21.5 | Yes |
| Application | haxx | curl | 7.21.6 | Yes |
| Application | haxx | curl | 7.21.7 | Yes |
| Application | haxx | curl | 7.22.0 | Yes |
| Application | haxx | curl | 7.23.0 | Yes |
| Application | haxx | curl | 7.23.1 | Yes |
| Application | haxx | curl | 7.24.0 | Yes |
| Application | haxx | curl | 7.25.0 | Yes |
| Application | haxx | curl | 7.26.0 | Yes |
| Application | haxx | curl | 7.27.0 | Yes |
| Application | haxx | curl | 7.28.0 | Yes |
| Application | haxx | curl | 7.28.1 | Yes |
| Application | haxx | curl | 7.29.0 | Yes |
| Application | haxx | curl | 7.30.0 | Yes |
| Application | haxx | libcurl | 7.7 | Yes |
| Application | haxx | libcurl | 7.7.1 | Yes |
| Application | haxx | libcurl | 7.7.2 | Yes |
| Application | haxx | libcurl | 7.7.3 | Yes |
| Application | haxx | libcurl | 7.8 | Yes |
| Application | haxx | libcurl | 7.8.1 | Yes |
| Application | haxx | libcurl | 7.9 | Yes |
| Application | haxx | libcurl | 7.9.1 | Yes |
| Application | haxx | libcurl | 7.9.2 | Yes |
| Application | haxx | libcurl | 7.9.3 | Yes |
| Application | haxx | libcurl | 7.9.4 | Yes |
| Application | haxx | libcurl | 7.9.5 | Yes |
| Application | haxx | libcurl | 7.9.6 | Yes |
| Application | haxx | libcurl | 7.9.7 | Yes |
| Application | haxx | libcurl | 7.9.8 | Yes |
| Application | haxx | libcurl | 7.10 | Yes |
| Application | haxx | libcurl | 7.10.1 | Yes |
| Application | haxx | libcurl | 7.10.2 | Yes |
| Application | haxx | libcurl | 7.10.3 | Yes |
| Application | haxx | libcurl | 7.10.4 | Yes |
| Application | haxx | libcurl | 7.10.5 | Yes |
| Application | haxx | libcurl | 7.10.6 | Yes |
| Application | haxx | libcurl | 7.10.7 | Yes |
| Application | haxx | libcurl | 7.10.8 | Yes |
| Application | haxx | libcurl | 7.11.0 | Yes |
| Application | haxx | libcurl | 7.11.1 | Yes |
| Application | haxx | libcurl | 7.11.2 | Yes |
| Application | haxx | libcurl | 7.12.0 | Yes |
| Application | haxx | libcurl | 7.12.1 | Yes |
| Application | haxx | libcurl | 7.12.2 | Yes |
| Application | haxx | libcurl | 7.12.3 | Yes |
| Application | haxx | libcurl | 7.13.0 | Yes |
| Application | haxx | libcurl | 7.13.1 | Yes |
| Application | haxx | libcurl | 7.13.2 | Yes |
| Application | haxx | libcurl | 7.14.0 | Yes |
| Application | haxx | libcurl | 7.14.1 | Yes |
| Application | haxx | libcurl | 7.15.0 | Yes |
| Application | haxx | libcurl | 7.15.1 | Yes |
| Application | haxx | libcurl | 7.15.2 | Yes |
| Application | haxx | libcurl | 7.15.3 | Yes |
| Application | haxx | libcurl | 7.15.4 | Yes |
| Application | haxx | libcurl | 7.15.5 | Yes |
| Application | haxx | libcurl | 7.16.0 | Yes |
| Application | haxx | libcurl | 7.16.1 | Yes |
| Application | haxx | libcurl | 7.16.2 | Yes |
| Application | haxx | libcurl | 7.16.3 | Yes |
| Application | haxx | libcurl | 7.16.4 | Yes |
| Application | haxx | libcurl | 7.17.0 | Yes |
| Application | haxx | libcurl | 7.17.1 | Yes |
| Application | haxx | libcurl | 7.18.0 | Yes |
| Application | haxx | libcurl | 7.18.1 | Yes |
| Application | haxx | libcurl | 7.18.2 | Yes |
| Application | haxx | libcurl | 7.19.0 | Yes |
| Application | haxx | libcurl | 7.19.1 | Yes |
| Application | haxx | libcurl | 7.19.2 | Yes |
| Application | haxx | libcurl | 7.19.3 | Yes |
| Application | haxx | libcurl | 7.19.4 | Yes |
| Application | haxx | libcurl | 7.19.5 | Yes |
| Application | haxx | libcurl | 7.19.6 | Yes |
| Application | haxx | libcurl | 7.19.7 | Yes |
| Application | haxx | libcurl | 7.20.0 | Yes |
| Application | haxx | libcurl | 7.20.1 | Yes |
| Application | haxx | libcurl | 7.21.0 | Yes |
| Application | haxx | libcurl | 7.21.1 | Yes |
| Application | haxx | libcurl | 7.21.2 | Yes |
| Application | haxx | libcurl | 7.21.3 | Yes |
| Application | haxx | libcurl | 7.21.4 | Yes |
| Application | haxx | libcurl | 7.21.5 | Yes |
| Application | haxx | libcurl | 7.21.6 | Yes |
| Application | haxx | libcurl | 7.21.7 | Yes |
| Application | haxx | libcurl | 7.22.0 | Yes |
| Application | haxx | libcurl | 7.23.0 | Yes |
| Application | haxx | libcurl | 7.23.1 | Yes |
| Application | haxx | libcurl | 7.24.0 | Yes |
| Application | haxx | libcurl | 7.25.0 | Yes |
| Application | haxx | libcurl | 7.26.0 | Yes |
| Application | haxx | libcurl | 7.27.0 | Yes |
| Application | haxx | libcurl | 7.28.0 | Yes |
| Application | haxx | libcurl | 7.28.1 | Yes |
| Application | haxx | libcurl | 7.29.0 | Yes |
| Application | haxx | libcurl | 7.30.0 | Yes |
| Operating System | canonical | ubuntu_linux | 10.04 | Yes |
| Operating System | canonical | ubuntu_linux | 12.04 | Yes |
| Operating System | canonical | ubuntu_linux | 12.10 | Yes |
| Operating System | canonical | ubuntu_linux | 13.04 | Yes |
| Operating System | opensuse | opensuse | 11.4 | Yes |
| Operating System | redhat | enterprise_linux | 5 | Yes |
| Operating System | redhat | enterprise_linux | 6.0 | Yes |