Gentoo Archives: gentoo-announce

From: Kurt Lieber <klieber@g.o>
To: gentoo-announce@l.g.o
Subject: [gentoo-announce] [ GLSA 200403-10 ] Fetchmail 6.2.5 fixes a remote DoS
Date: Wed, 31 Mar 2004 07:49:46
Message-Id: 20040331074903.GM24315@mail.lieber.org
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2 Gentoo Linux Security Advisory GLSA 200403-10
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4 http://security.gentoo.org
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7 Severity: Normal
8 Title: Fetchmail 6.2.5 fixes a remote DoS
9 Date: March 30, 2004
10 Bugs: #37717
11 ID: 200403-10
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15 Synopsis
16 ========
17
18 Fetchmail versions 6.2.4 and earlier can be crashed by sending a
19 specially-crafted email to a fetchmail user.
20
21 Background
22 ==========
23
24 Fetchmail is a utility that retrieves and forwards mail from remote
25 systems using IMAP, POP, and other protocols.
26
27 Affected packages
28 =================
29
30 -------------------------------------------------------------------
31 Package / Vulnerable / Unaffected
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33 net-mail/fetchmail <= 6.2.4 >= 6.2.5
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35 Description
36 ===========
37
38 Fetchmail versions 6.2.4 and earlier can be crashed by sending a
39 specially-crafted email to a fetchmail user. This problem occurs
40 because Fetchmail does not properly allocate memory for long lines in
41 an incoming email.
42
43 Impact
44 ======
45
46 Fetchmail users who receive a malicious email may have their fetchmail
47 program crash.
48
49 Workaround
50 ==========
51
52 While a workaround is not currently known for this issue, all users are
53 advised to upgrade to the latest version of the affected package.
54
55 Resolution
56 ==========
57
58 Fetchmail users should upgrade to version 6.2.5 or later:
59
60 # emerge sync
61 # emerge -pv ">=net-mail/fetchmail-6.2.5"
62 # emerge ">=net-mail/fetchmail-6.2.5"
63
64 References
65 ==========
66
67 [ 1 ] http://xforce.iss.net/xforce/xfdb/13450
68 [ 2 ] http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2003-0792
69
70 Concerns?
71 =========
72
73 Security is a primary focus of Gentoo Linux and ensuring the
74 confidentiality and security of our users machines is of utmost
75 importance to us. Any security concerns should be addressed to
76 security@g.o or alternatively, you may file a bug at
77 http://bugs.gentoo.org.