CVE-2016-9953: Critical severity curl vulnerability

Published Mar 12, 2018
·
Updated

The verifycertificate 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, allows remote attackers to obtain sensitive information, cause a denial of service (crash), or possibly have unspecified other impact via a wildcard certificate name, which triggers an out-of-bounds read.

Affected Software

4 affected components
haxx curl>=7.30.0<=7.51.0
Microsoft Windows CE
All of the following
haxx curl>=7.30.0<=7.51.0
Microsoft Windows Embedded Compact

Event History

Mar 12, 2018
CVE Published
via MITRE·09:00 PM
Data Sourced
via MITRE·09:00 PM
Description

Frequently Asked Questions

1

What is the severity of CVE-2016-9953?

CVE-2016-9953 has a high severity rating due to its potential to cause denial of service and reveal sensitive information.

2

How do I fix CVE-2016-9953?

To fix CVE-2016-9953, update libcurl to a version newer than 7.51.0.

3

What software is affected by CVE-2016-9953?

CVE-2016-9953 affects libcurl versions 7.30.0 to 7.51.0 built for Windows CE.

4

Can CVE-2016-9953 lead to remote attacks?

Yes, CVE-2016-9953 allows remote attackers to exploit the vulnerability for various malicious purposes.

5

What specific function in libcurl is vulnerable in CVE-2016-9953?

The verify_certificate function in schannel.c is the specific function affected by CVE-2016-9953.

Contact

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