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HistorySep 08, 2017 - 6:40 p.m.

[SECURITY] [DSA 3967-1] mbedtls security update

2017-09-0818:40:37
lists.debian.org
9

CVSS2

6.8

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

CVSS3

8.1

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

AI Score

8

Confidence

High

EPSS

0.007

Percentile

80.6%


Debian Security Advisory DSA-3967-1 [email protected]
https://www.debian.org/security/ Salvatore Bonaccorso
September 08, 2017 https://www.debian.org/security/faq


Package : mbedtls
CVE ID : CVE-2017-14032
Debian Bug : 873557

An authentication bypass vulnerability was discovered in mbed TLS, a
lightweight crypto and SSL/TLS library, when the authentication mode is
configured as 'optional'. A remote attacker can take advantage of this
flaw to mount a man-in-the-middle attack and impersonate an intended
peer via an X.509 certificate chain with many intermediates.

For the stable distribution (stretch), this problem has been fixed in
version 2.4.2-1+deb9u1.

For the testing distribution (buster), this problem has been fixed
in version 2.6.0-1.

For the unstable distribution (sid), this problem has been fixed in
version 2.6.0-1.

We recommend that you upgrade your mbedtls packages.

Further information about Debian Security Advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://www.debian.org/security/

Mailing list: [email protected]

CVSS2

6.8

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

CVSS3

8.1

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

AI Score

8

Confidence

High

EPSS

0.007

Percentile

80.6%