CVE-2016-9952
Published: 12 March 2018
The verify_certificate function in lib/vtls/schannel.c in libcurl 7.30.0 through 7.51.0, when built for Windows CE using the schannel TLS backend, makes it easier for remote attackers to conduct man-in-the-middle attacks via a crafted wildcard SAN in a server certificate, as demonstrated by "*.com."
Notes
| Author | Note |
|---|---|
| ratliff | Advisory says "This vulnerability only happens on ... Windows CE" |
Priority
Status
| Package | Release | Status |
|---|---|---|
|
curl Launchpad, Ubuntu, Debian |
artful |
Not vulnerable
(see note)
|
| trusty |
Not vulnerable
(see note)
|
|
| upstream |
Needs triage
|
|
| xenial |
Not vulnerable
(see note)
|
|
|
Patches: upstream: https://curl.haxx.se/CVE-2016-9952.patch |
||
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 8.1 |
| Attack vector | Network |
| Attack complexity | High |
| Privileges required | None |
| User interaction | None |
| Scope | Unchanged |
| Confidentiality | High |
| Integrity impact | High |
| Availability impact | High |
| Vector | CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H |