Gentoo Archives: gentoo-announce

From: Thomas Deutschmann <whissi@g.o>
To: gentoo-announce@l.g.o
Subject: [gentoo-announce] [ GLSA 202009-01 ] GnuTLS: Denial of service
Date: Sun, 06 Sep 2020 00:27:51
Message-Id: e745087d-d65b-fe54-ea74-183327aeb284@gentoo.org
1 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
2 Gentoo Linux Security Advisory GLSA 202009-01
3 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
4 https://security.gentoo.org/
5 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
6
7 Severity: Low
8 Title: GnuTLS: Denial of service
9 Date: September 06, 2020
10 Bugs: #740390
11 ID: 202009-01
12
13 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
14
15 Synopsis
16 ========
17
18 A flaw was found in GnuTLS, possibly allowing a Denial of Service
19 condition.
20
21 Background
22 ==========
23
24 GnuTLS is an Open Source implementation of the TLS and SSL protocols.
25
26 Affected packages
27 =================
28
29 -------------------------------------------------------------------
30 Package / Vulnerable / Unaffected
31 -------------------------------------------------------------------
32 1 net-libs/gnutls < 3.6.15 >= 3.6.15
33
34 Description
35 ===========
36
37 It was found that GnuTLS didn't handle "no_renegotiation" alert
38 properly.
39
40 Impact
41 ======
42
43 A remote attacker could entice a user to connect to a malicious TLS
44 endpoint using an application linked against GnuTLS, possibly resulting
45 in a Denial of Service condition.
46
47 Workaround
48 ==========
49
50 There is no known workaround at this time.
51
52 Resolution
53 ==========
54
55 All GnuTLS users should upgrade to the latest version:
56
57 # emerge --sync
58 # emerge --ask --oneshot --verbose ">=net-libs/gnutls-3.6.15"
59
60 References
61 ==========
62
63 [ 1 ] CVE-2020-24659
64 https://nvd.nist.gov/vuln/detail/CVE-2020-24659
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/202009-01
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 2020 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

Attachments

File name MIME type
signature.asc application/pgp-signature