CURL-CVE-2018-16839
- Source
- https://curl.se/docs/CVE-2018-16839.html
- Import Source
- https://curl.se/docs/CURL-CVE-2018-16839.json
- JSON Data
- https://api.osv.dev/v1/vulns/CURL-CVE-2018-16839
- Aliases
- Published
- 2018-10-31T08:00:00Z
- Modified
- 2024-07-02T09:22:24Z
- Summary
- SASL password overflow via integer overflow
- Details
-
libcurl contains a buffer overrun in the SASL authentication code.
The internal function
Curl_auth_create_plain_messagefails to correctly verify that the passed in lengths for name and password are not too long, then calculates a buffer size to allocate.On systems with a 32 bit
size_t, the math to calculate the buffer size triggers an integer overflow when the username length exceeds 1GB and the password name length is close to 2GB in size. 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 very similar to CVE-2018-14618.)
- References
-
- Credits
-
-
- Harry Sintonen - FINDER
-
- Daniel Stenberg - REMEDIATION_DEVELOPER
-
Affected packages
Git / github.com/curl/curl.git
Affected ranges
- Type
- SEMVER
- Events
-
Introduced7.33.0Fixed7.62.0
- Type
- GIT
- Repo
- https://github.com/curl/curl.git
- Events
Affected versions
7.*
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
7.61.1