Gentoo Archives: gentoo-announce

From: John Helmert III <ajak@g.o>
To: gentoo-announce@l.g.o
Subject: [gentoo-announce] [ GLSA 202107-26 ] runC: Container breakout
Date: Sat, 10 Jul 2021 03:15:06
Message-Id: YOkPdie87/POmQq/@sol.nexus.lan
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2 Gentoo Linux Security Advisory GLSA 202107-26
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4 https://security.gentoo.org/
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6
7 Severity: Low
8 Title: runC: Container breakout
9 Date: July 10, 2021
10 Bugs: #790257
11 ID: 202107-26
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14
15 Synopsis
16 ========
17
18 A vulnerability has been found in runC which could result in privilege
19 escalation.
20
21 Background
22 ==========
23
24 runC is a CLI tool for spawning and running containers according to the
25 OCI specification.
26
27 Affected packages
28 =================
29
30 -------------------------------------------------------------------
31 Package / Vulnerable / Unaffected
32 -------------------------------------------------------------------
33 1 app-emulation/runc < 1.0.0_rc95 >= 1.0.0_rc95
34
35 Description
36 ===========
37
38 A vulnerability in runC could allow an attacker to achieve privilege
39 escalation if specific mount configuration prerequisites are satisfied.
40
41 Impact
42 ======
43
44 An attacker may be able to escalation privileges to gain access to the
45 host system.
46
47 Workaround
48 ==========
49
50 There is no known workaround at this time.
51
52 Resolution
53 ==========
54
55 All runC users should upgrade to the latest version:
56
57 # emerge --sync
58 # emerge --ask --oneshot --verbose ">=app-emulation/runc-1.0.0_rc95"
59
60 References
61 ==========
62
63 [ 1 ] CVE-2021-30465
64 https://nvd.nist.gov/vuln/detail/CVE-2021-30465
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/202107-26
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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