Gentoo Archives: gentoo-announce

From: Aaron Bauman <bman@g.o>
To: gentoo-announce@l.g.o
Subject: [gentoo-announce] [ GLSA 201710-15 ] GnuTLS: Denial of Service
Date: Sun, 15 Oct 2017 04:22:17
Message-Id: 2467484.y2d7zL0xNO@localhost.localdomain
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2 Gentoo Linux Security Advisory GLSA 201710-15
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4 https://security.gentoo.org/
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6
7 Severity: Normal
8 Title: GnuTLS: Denial of Service
9 Date: October 15, 2017
10 Bugs: #622038
11 ID: 201710-15
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14
15 Synopsis
16 ========
17
18 A null pointer dereference in GnuTLS might allow attackers to cause a
19 Denial of Service condition.
20
21 Background
22 ==========
23
24 GnuTLS is a secure communications library implementing the SSL, TLS and
25 DTLS protocols and technologies around them.
26
27 Affected packages
28 =================
29
30 -------------------------------------------------------------------
31 Package / Vulnerable / Unaffected
32 -------------------------------------------------------------------
33 1 net-libs/gnutls < 3.5.13 >= 3.5.13
34
35 Description
36 ===========
37
38 A null pointer dereference while decoding a status response TLS
39 extension with valid contents was discovered in GnuTLS.
40
41 Impact
42 ======
43
44 A remote attacker could possibly cause a Denial of Service condition.
45
46 Workaround
47 ==========
48
49 There is no known workaround at this time.
50
51 Resolution
52 ==========
53
54 All GnuTLS users should upgrade to the latest version:
55
56 # emerge --sync
57 # emerge --ask --oneshot --verbose ">=net-libs/gnutls-3.5.13"
58
59 Packages which depend on this library may need to be recompiled. Tools
60 such as revdep-rebuild may assist in identifying some of these
61 packages.
62
63 References
64 ==========
65
66 [ 1 ] CVE-2017-7507
67 https://nvd.nist.gov/vuln/detail/CVE-2017-7507
68
69 Availability
70 ============
71
72 This GLSA and any updates to it are available for viewing at
73 the Gentoo Security Website:
74
75 https://security.gentoo.org/glsa/201710-15
76
77 Concerns?
78 =========
79
80 Security is a primary focus of Gentoo Linux and ensuring the
81 confidentiality and security of our users' machines is of utmost
82 importance to us. Any security concerns should be addressed to
83 security@g.o or alternatively, you may file a bug at
84 https://bugs.gentoo.org.
85
86 License
87 =======
88
89 Copyright 2017 Gentoo Foundation, Inc; referenced text
90 belongs to its owner(s).
91
92 The contents of this document are licensed under the
93 Creative Commons - Attribution / Share Alike license.
94
95 http://creativecommons.org/licenses/by-sa/2.5

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