Gentoo Archives: gentoo-announce

From: Thomas Deutschmann <whissi@g.o>
To: gentoo-announce@l.g.o
Subject: [gentoo-announce] [ GLSA 202004-06 ] GnuTLS: DTLS protocol regression
Date: Thu, 02 Apr 2020 23:05:30
Message-Id: 02e1cdd6-9cdf-5603-caea-9a5441e3e08e@gentoo.org
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2 Gentoo Linux Security Advisory GLSA 202004-06
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4 https://security.gentoo.org/
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6
7 Severity: Normal
8 Title: GnuTLS: DTLS protocol regression
9 Date: April 02, 2020
10 Bugs: #715602
11 ID: 202004-06
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14
15 Synopsis
16 ========
17
18 A regression in GnuTLS breaks the security guarantees of the DTLS
19 protocol.
20
21 Background
22 ==========
23
24 GnuTLS is an Open Source implementation of the TLS and SSL protocols.
25
26 Affected packages
27 =================
28
29 -------------------------------------------------------------------
30 Package / Vulnerable / Unaffected
31 -------------------------------------------------------------------
32 1 net-libs/gnutls < 3.6.13 >= 3.6.13
33
34 Description
35 ===========
36
37 It was discovered that DTLS client did not contribute any randomness to
38 the DTLS negotiation.
39
40 Impact
41 ======
42
43 Please review the referenced advisory for details.
44
45 Workaround
46 ==========
47
48 There is no known workaround at this time.
49
50 Resolution
51 ==========
52
53 All GnuTLS users should upgrade to the latest version:
54
55 # emerge --sync
56 # emerge --ask --oneshot --verbose ">=net-libs/gnutls-3.6.13"
57
58 References
59 ==========
60
61 [ 1 ] GNUTLS-SA-2020-03-31
62 https://www.gnutls.org/security-new.html#GNUTLS-SA-2020-03-31
63
64 Availability
65 ============
66
67 This GLSA and any updates to it are available for viewing at
68 the Gentoo Security Website:
69
70 https://security.gentoo.org/glsa/202004-06
71
72 Concerns?
73 =========
74
75 Security is a primary focus of Gentoo Linux and ensuring the
76 confidentiality and security of our users' machines is of utmost
77 importance to us. Any security concerns should be addressed to
78 security@g.o or alternatively, you may file a bug at
79 https://bugs.gentoo.org.
80
81 License
82 =======
83
84 Copyright 2020 Gentoo Foundation, Inc; referenced text
85 belongs to its owner(s).
86
87 The contents of this document are licensed under the
88 Creative Commons - Attribution / Share Alike license.
89
90 https://creativecommons.org/licenses/by-sa/2.5

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