Gentoo Archives: gentoo-announce

From: Sam James <sam@g.o>
To: gentoo-announce@l.g.o
Subject: [gentoo-announce] [ GLSA 202007-46 ] D-Bus: Denial of service
Date: Mon, 27 Jul 2020 01:05:18
Message-Id: C0A86276-D069-4FD1-B146-0FF1DF766966@gentoo.org
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2 Gentoo Linux Security Advisory GLSA 202007-46
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4 https://security.gentoo.org/
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6
7 Severity: Normal
8 Title: D-Bus: Denial of service
9 Date: July 27, 2020
10 Bugs: #727104
11 ID: 202007-46
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14
15 Synopsis
16 ========
17
18 A local Denial of Service vulnerability was discovered in D-Bus.
19
20 Background
21 ==========
22
23 D-Bus is a message bus system which processes can use to talk to each
24 other.
25
26 Affected packages
27 =================
28
29 -------------------------------------------------------------------
30 Package / Vulnerable / Unaffected
31 -------------------------------------------------------------------
32 1 sys-apps/dbus < 1.12.18 >= 1.12.18
33
34 Description
35 ===========
36
37 D-Bus does not correctly dispose of old connections meaning that it is
38 possible for D-Bus to hit a connection limit.
39
40 Impact
41 ======
42
43 An attacker could cause a possible Denial of Service condition.
44
45 Workaround
46 ==========
47
48 There is no known workaround at this time.
49
50 Resolution
51 ==========
52
53 All D-Bus users should upgrade to the latest version:
54
55 # emerge --sync
56 # emerge --ask --oneshot --verbose ">=sys-apps/dbus-1.12.18"
57
58 References
59 ==========
60
61 [ 1 ] CVE-2020-12049
62 https://nvd.nist.gov/vuln/detail/CVE-2020-12049
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/202007-46
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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