Gentoo Archives: gentoo-announce

From: Sam James <sam@g.o>
To: gentoo-announce@l.g.o
Subject: [gentoo-announce] [ GLSA 202107-10 ] TCG TPM2 Software Stack: Information disclosure
Date: Wed, 07 Jul 2021 08:10:27
Message-Id: 0852B093-14A7-4F93-B4E7-CABC6F7244D7@gentoo.org
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2 Gentoo Linux Security Advisory GLSA 202107-10
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4 https://security.gentoo.org/
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6
7 Severity: Normal
8 Title: TCG TPM2 Software Stack: Information disclosure
9 Date: July 07, 2021
10 Bugs: #746563
11 ID: 202107-10
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14
15 Synopsis
16 ========
17
18 A bug in TCG TPM2 Software Stack may result in information disclosure
19 to a local attacker.
20
21 Background
22 ==========
23
24 TCG TPM2 Software Stack is a library to interface with trusted platform
25 modules.
26
27 Affected packages
28 =================
29
30 -------------------------------------------------------------------
31 Package / Vulnerable / Unaffected
32 -------------------------------------------------------------------
33 1 app-crypt/tpm2-tss < 2.4.3 >= 2.4.3
34
35 Description
36 ===========
37
38 TCG TPM2 Software Stack did not appropriately apply FAPI policies to
39 protect data encrypted with the trusted platform module.
40
41 Impact
42 ======
43
44 Data encrypted using TCG TPM2 Software Stack (tpm2-tss) may not be
45 protected from an attacker.
46
47 Workaround
48 ==========
49
50 There is no known workaround at this time.
51
52 Resolution
53 ==========
54
55 All tpm2-tss users should upgrade to the latest version:
56
57 # emerge --sync
58 # emerge --ask --oneshot --verbose ">=app-crypt/tpm2-tss-2.4.3"
59
60 References
61 ==========
62
63 [ 1 ] CVE-2020-24455
64 https://nvd.nist.gov/vuln/detail/CVE-2020-24455
65
66 Availability
67 ============
68
69 This GLSA and any updates to it are available for viewing at
70 the Gentoo Security Website:
71
72 https://security.gentoo.org/glsa/202107-10
73
74 Concerns?
75 =========
76
77 Security is a primary focus of Gentoo Linux and ensuring the
78 confidentiality and security of our users' machines is of utmost
79 importance to us. Any security concerns should be addressed to
80 security@g.o or alternatively, you may file a bug at
81 https://bugs.gentoo.org.
82
83 License
84 =======
85
86 Copyright 2021 Gentoo Foundation, Inc; referenced text
87 belongs to its owner(s).
88
89 The contents of this document are licensed under the
90 Creative Commons - Attribution / Share Alike license.
91
92 https://creativecommons.org/licenses/by-sa/2.5

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