Gentoo Archives: gentoo-announce

From: glsamaker@g.o
To: gentoo-announce@l.g.o
Subject: [gentoo-announce] [ GLSA 202209-07 ] Mrxvt: Arbitrary Code Execution
Date: Sun, 25 Sep 2022 13:50:01
Message-Id: 166411285779.9.1831758819775313535@90bb6a0775af
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2 Gentoo Linux Security Advisory GLSA 202209-07
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4 https://security.gentoo.org/
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6
7 Severity: Normal
8 Title: Mrxvt: Arbitrary Code Execution
9 Date: September 25, 2022
10 Bugs: #791004
11 ID: 202209-07
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14
15 Synopsis
16 ========
17
18 A vulnerability has been discovered in Mrxvt which could allow for
19 arbitrary code execution
20
21 Background
22 ==========
23
24 Mrxvt is a multi-tabbed rxvt clone with XFT, transparent background and
25 CJK support.
26
27 Affected packages
28 =================
29
30 -------------------------------------------------------------------
31 Package / Vulnerable / Unaffected
32 -------------------------------------------------------------------
33 1 x11-terms/mrxvt <= 0.5.4 Vulnerable!
34
35 Description
36 ===========
37
38 Mrxvt mishandles certain escape sequences, some of which allow for shell
39 command execution.
40
41 Impact
42 ======
43
44 An attacker with sufficient access to write arbitrary text to the Mrxvt
45 terminal could execute arbitrary code.
46
47 Workaround
48 ==========
49
50 There is no known workaround at this time.
51
52 Resolution
53 ==========
54
55 Gentoo has discontinued support for Mrxvt. We recommend that users
56 remove it:
57
58 # emerge --ask --depclean "x11-terms/mrxvt"
59
60 References
61 ==========
62
63 [ 1 ] CVE-2021-33477
64 https://nvd.nist.gov/vuln/detail/CVE-2021-33477
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/202209-07
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 2022 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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