CURL-CVE-2018-14618
See a problem?- Source
- https://curl.se/docs/CVE-2018-14618.html
- Import Source
- https://curl.se/docs/CURL-CVE-2018-14618.json
- JSON Data
- https://api.osv.dev/v1/vulns/CURL-CVE-2018-14618
- Aliases
- Published
- 2018-09-05T08:00:00Z
- Modified
- 2024-07-02T09:22:24Z
- Summary
- NTLM password overflow via integer overflow
- Details
-
libcurl contains a buffer overrun in the NTLM authentication code.
The internal function
Curl_ntlm_core_mk_nt_hashmultiplies thelengthof the password by two (SUM) to figure out how large temporary storage area to allocate from the heap.The
lengthvalue is then subsequently used to iterate over the password and generate output into the allocated storage buffer. On systems with a 32 bitsize_t, the math to calculate SUM triggers an integer overflow when the password length exceeds 2GB (2^31 bytes). This integer overflow usually causes a very small buffer to actually get allocated instead of the intended very huge one, making the use of that buffer end up in a heap buffer overflow.(This bug is almost identical to CVE-2017-8816.)
- References
-
- Credits
-
-
- Zhaoyang Wu - FINDER
-
- Daniel Stenberg - REMEDIATION_DEVELOPER
-
Affected packages
Git / github.com/curl/curl.git
Affected ranges
- Type
- SEMVER
- Events
-
Introduced7.15.4Fixed7.61.1
- Type
- GIT
- Repo
- https://github.com/curl/curl.git
- Events
Affected versions
7.*
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
7.50.3
7.51.0
7.52.0
7.52.1
7.53.0
7.53.1
7.54.0
7.54.1
7.55.0
7.55.1
7.56.0
7.56.1
7.57.0
7.58.0
7.59.0
7.60.0
7.61.0