Gentoo Archives: gentoo-announce

From: Aaron Bauman <bman@g.o>
To: gentoo-announce@l.g.o
Subject: [gentoo-announce] [ GLSA 202006-16 ] PCRE2: Denial of service
Date: Mon, 15 Jun 2020 16:41:44
Message-Id: 20200615154935.GE17996@bubba
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2 Gentoo Linux Security Advisory GLSA 202006-16
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4 https://security.gentoo.org/
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7 Severity: Normal
8 Title: PCRE2: Denial of service
9 Date: June 15, 2020
10 Bugs: #717800
11 ID: 202006-16
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14
15 Synopsis
16 ========
17
18 A vulnerability in PCRE2 could lead to a Denial of Service condition.
19
20 Background
21 ==========
22
23 PCRE2 is a project based on PCRE (Perl Compatible Regular Expressions)
24 which has a new and revised API.
25
26 Affected packages
27 =================
28
29 -------------------------------------------------------------------
30 Package / Vulnerable / Unaffected
31 -------------------------------------------------------------------
32 1 net-libs/pcre2 < 10.34 >= 10.34
33
34 Description
35 ===========
36
37 PCRE2 has a flaw when handling JIT-compiled regex using the \X pattern.
38
39 Impact
40 ======
41
42 An attacker could cause a possible Denial of Service condition.
43
44 Workaround
45 ==========
46
47 There is no known workaround at this time.
48
49 Resolution
50 ==========
51
52 All PCRE2 users should upgrade to the latest version:
53
54 # emerge --sync
55 # emerge --ask --oneshot --verbose ">=net-libs/pcre2-10.34"
56
57 References
58 ==========
59
60 [ 1 ] CVE-2019-20454
61 https://nvd.nist.gov/vuln/detail/CVE-2019-20454
62
63 Availability
64 ============
65
66 This GLSA and any updates to it are available for viewing at
67 the Gentoo Security Website:
68
69 https://security.gentoo.org/glsa/202006-16
70
71 Concerns?
72 =========
73
74 Security is a primary focus of Gentoo Linux and ensuring the
75 confidentiality and security of our users' machines is of utmost
76 importance to us. Any security concerns should be addressed to
77 security@g.o or alternatively, you may file a bug at
78 https://bugs.gentoo.org.
79
80 License
81 =======
82
83 Copyright 2020 Gentoo Foundation, Inc; referenced text
84 belongs to its owner(s).
85
86 The contents of this document are licensed under the
87 Creative Commons - Attribution / Share Alike license.
88
89 https://creativecommons.org/licenses/by-sa/2.5

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