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ubuntucveUbuntu.comUB:CVE-2013-6422
HistoryDec 17, 2013 - 12:00 a.m.

CVE-2013-6422

2013-12-1700:00:00
ubuntu.com
ubuntu.com
13

4 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

HIGH

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

NONE

AV:N/AC:H/Au:N/C:P/I:P/A:N

0.002 Low

EPSS

Percentile

64.2%

The GnuTLS backend in libcurl 7.21.4 through 7.33.0, when disabling digital
signature verification (CURLOPT_SSL_VERIFYPEER), also disables the
CURLOPT_SSL_VERIFYHOST check for CN or SAN host name fields, which makes it
easier for remote attackers to spoof servers and conduct man-in-the-middle
(MITM) attacks.

Notes

Author Note
seth-arnold Similar to but different from CVE-2013-4545
OSVersionArchitecturePackageVersionFilename
ubuntu12.04noarchcurl< 7.22.0-3ubuntu4.6UNKNOWN
ubuntu12.10noarchcurl< 7.27.0-1ubuntu1.7UNKNOWN
ubuntu13.04noarchcurl< 7.29.0-1ubuntu3.4UNKNOWN
ubuntu13.10noarchcurl< 7.32.0-1ubuntu1.2UNKNOWN

4 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

HIGH

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

NONE

AV:N/AC:H/Au:N/C:P/I:P/A:N

0.002 Low

EPSS

Percentile

64.2%