Gentoo Archives: gentoo-announce

From: glsamaker@g.o
To: gentoo-announce@l.g.o
Subject: [gentoo-announce] [ GLSA 202210-23 ] libksba: Remote Code Execution
Date: Mon, 31 Oct 2022 01:53:52
Message-Id: 166717901273.9.765762177480340188@90bb6a0775af
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2 Gentoo Linux Security Advisory GLSA 202210-23
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4 https://security.gentoo.org/
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6
7 Severity: High
8 Title: libksba: Remote Code Execution
9 Date: October 31, 2022
10 Bugs: #877453
11 ID: 202210-23
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14
15 Synopsis
16 ========
17
18 An integer overflow vulnerability has been found in libksba which could
19 result in remote code execution.
20
21 Background
22 ==========
23
24 Libksba is a X.509 and CMS (PKCS#7) library.
25
26 Affected packages
27 =================
28
29 -------------------------------------------------------------------
30 Package / Vulnerable / Unaffected
31 -------------------------------------------------------------------
32 1 dev-libs/libksba < 1.6.2 >= 1.6.2
33
34 Description
35 ===========
36
37 An integer overflow in parsing ASN.1 objects could lead to a buffer
38 overflow.
39
40 Impact
41 ======
42
43 Crafted ASN.1 objects could trigger an integer overflow and buffer
44 overflow to result in remote code execution.
45
46 Workaround
47 ==========
48
49 There is no known workaround at this time.
50
51 Resolution
52 ==========
53
54 All libksba users should upgrade to the latest version:
55
56 # emerge --sync
57 # emerge --ask --oneshot --verbose ">=dev-libs/libksba-1.6.2"
58
59 References
60 ==========
61
62 [ 1 ] CVE-2022-3515
63 https://nvd.nist.gov/vuln/detail/CVE-2022-3515
64
65 Availability
66 ============
67
68 This GLSA and any updates to it are available for viewing at
69 the Gentoo Security Website:
70
71 https://security.gentoo.org/glsa/202210-23
72
73 Concerns?
74 =========
75
76 Security is a primary focus of Gentoo Linux and ensuring the
77 confidentiality and security of our users' machines is of utmost
78 importance to us. Any security concerns should be addressed to
79 security@g.o or alternatively, you may file a bug at
80 https://bugs.gentoo.org.
81
82 License
83 =======
84
85 Copyright 2022 Gentoo Foundation, Inc; referenced text
86 belongs to its owner(s).
87
88 The contents of this document are licensed under the
89 Creative Commons - Attribution / Share Alike license.
90
91 https://creativecommons.org/licenses/by-sa/2.5

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