CURL-CVE-2016-7167
See a problem?- Source
- https://curl.se/docs/CVE-2016-7167.html
- Import Source
- https://curl.se/docs/CURL-CVE-2016-7167.json
- JSON Data
- https://api.osv.dev/v1/vulns/CURL-CVE-2016-7167
- Aliases
- Published
- 2016-09-14T08:00:00Z
- Modified
- 2024-06-07T13:53:51Z
- Summary
- curl escape and unescape integer overflows
- Details
-
The four libcurl functions
curl_escape(),curl_easy_escape(),curl_unescapeandcurl_easy_unescapeperform string URL percent escaping and unescaping. They accept custom string length inputs in signed integer arguments. (The functions having names without "easy" being the deprecated versions of the others.)The provided string length arguments were not properly checked and due to arithmetic in the functions, passing in the length
0xffffffff(2^32-1 orUINT_MAXor even just -1) would end up causing an allocation of zero bytes of heap memory that curl would attempt to write gigabytes of data into.The use of 'int' for this input type in the API is of course unwise but has remained so in order to maintain the API over the years.
- References
-
- Credits
-
-
- the Mitre CVE Assignment Team - FINDER
-
- Daniel Stenberg - REMEDIATION_DEVELOPER
-
Affected packages
Git /
Affected versions
7.*
7.11.1
7.11.2
7.12.0
7.12.1
7.12.2
7.12.3
7.13.0
7.13.1
7.13.2
7.14.0
7.14.1
7.15.0
7.15.1
7.15.2
7.15.3
7.15.4
7.15.5
7.16.0
7.16.1
7.16.2
7.16.3
7.16.4
7.17.0
7.17.1
7.18.0
7.18.1
7.18.2
7.19.0
7.19.1
7.19.2
7.19.3
7.19.4
7.19.5
7.19.6
7.19.7
7.20.0
7.20.1
7.21.0
7.21.1
7.21.2
7.21.3
7.21.4
7.21.5
7.21.6
7.21.7
7.22.0
7.23.0
7.23.1
7.24.0
7.25.0
7.26.0
7.27.0
7.28.0
7.28.1
7.29.0
7.30.0
7.31.0
7.32.0
7.33.0
7.34.0
7.35.0
7.36.0
7.37.0
7.37.1
7.38.0
7.39.0
7.40.0
7.41.0
7.42.0
7.42.1
7.43.0
7.44.0
7.45.0
7.46.0
7.47.0
7.47.1
7.48.0
7.49.0
7.49.1
7.50.0
7.50.1
7.50.2