Gentoo Archives: gentoo-announce

From: Sam James <sam@g.o>
To: gentoo-announce@l.g.o
Subject: [gentoo-announce] [ GLSA 202009-14 ] Xen: Buffer overflow
Date: Wed, 30 Sep 2020 00:22:56
Message-Id: D26154CD-456E-44AE-A6D3-AADE38AA3CFA@gentoo.org
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2 Gentoo Linux Security Advisory GLSA 202009-14
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4 https://security.gentoo.org/
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6
7 Severity: Normal
8 Title: Xen: Buffer overflow
9 Date: September 29, 2020
10 Bugs: #738040
11 ID: 202009-14
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14
15 Synopsis
16 ========
17
18 A buffer overflow in Xen might allow remote attacker(s) to execute
19 arbitrary code.
20
21 Background
22 ==========
23
24 Xen is a bare-metal hypervisor.
25
26 Affected packages
27 =================
28
29 -------------------------------------------------------------------
30 Package / Vulnerable / Unaffected
31 -------------------------------------------------------------------
32 1 app-emulation/xen < 4.13.1-r3 >= 4.13.1-r3
33 2 app-emulation/xen-tools < 4.13.1-r3 >= 4.13.1-r3
34 -------------------------------------------------------------------
35 2 affected packages
36
37 Description
38 ===========
39
40 An out-of-bounds read/write access issue was found in the USB emulator
41 when using QEMU.
42
43 Impact
44 ======
45
46 A remote attacker could possibly execute arbitrary code with the
47 privileges of the process or cause a Denial of Service condition.
48
49 Workaround
50 ==========
51
52 There is no known workaround at this time.
53
54 Resolution
55 ==========
56
57 All Xen users should upgrade to the latest version:
58
59 # emerge --sync
60 # emerge --ask --oneshot --verbose ">=app-emulation/xen-4.13.1-r3"
61
62 All Xen tools users should upgrade to the latest version:
63
64 # emerge --sync
65 # emerge --ask --oneshot -v ">=app-emulation/xen-tools-4.13.1-r3"
66
67 References
68 ==========
69
70 [ 1 ] CVE-2020-14364
71 https://nvd.nist.gov/vuln/detail/CVE-2020-14364
72 [ 2 ] XSA-335
73 https://xenbits.xen.org/xsa/advisory-335.html
74
75 Availability
76 ============
77
78 This GLSA and any updates to it are available for viewing at
79 the Gentoo Security Website:
80
81 https://security.gentoo.org/glsa/202009-14
82
83 Concerns?
84 =========
85
86 Security is a primary focus of Gentoo Linux and ensuring the
87 confidentiality and security of our users' machines is of utmost
88 importance to us. Any security concerns should be addressed to
89 security@g.o or alternatively, you may file a bug at
90 https://bugs.gentoo.org.
91
92 License
93 =======
94
95 Copyright 2020 Gentoo Foundation, Inc; referenced text
96 belongs to its owner(s).
97
98 The contents of this document are licensed under the
99 Creative Commons - Attribution / Share Alike license.
100
101 https://creativecommons.org/licenses/by-sa/2.5

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