blob: a9a36861f7ab090a134edbc48913837b3fff2799 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
|
IRSSI-SA-2018-01 Irssi Security Advisory [1]
============================================
CVE-2018-5206, CVE-2018-5205, CVE-2018-5208, CVE-2018-5207
Description
-----------
Multiple vulnerabilities have been located in Irssi.
(a) When the channel topic is set without specifying a sender, Irssi
may dereference NULL pointer. Found by Joseph Bisch. (CWE-476)
CVE-2018-5206 was assigned to this issue.
(b) When using incomplete escape codes, Irssi may access data beyond
the end of the string. (CWE-126) Found by Joseph Bisch.
CVE-2018-5205 was assigned to this issue.
(c) A calculation error in the completion code could cause a heap
buffer overflow when completing certain strings. (CWE-126) Found
by Joseph Bisch.
CVE-2018-5208 was assigned to this issue.
(d) When using an incomplete variable argument, Irssi may access data
beyond the end of the string. (CWE-126) Found by Joseph Bisch.
CVE-2018-5207 was assigned to this issue.
Impact
------
May affect the stability of Irssi.
Affected versions
-----------------
(a,b,c,d) All Irssi versions that we observed.
Fixed in
--------
Irssi 1.0.6
Recommended action
------------------
Upgrade to Irssi 1.0.6. Irssi 1.0.6 is a maintenance release in the
1.0 series, without any new features.
After installing the updated packages, one can issue the /upgrade
command to load the new binary. TLS connections will require
/reconnect.
Mitigating facts
----------------
(a) requires a broken ircd or control over the ircd
(b,d) requires user to install malicious or broken files or enter
affected commands
Patch
-----
https://github.com/irssi/irssi/releases/download/1.0.6/irssi-1.0.5_1.0.6.diff
References
----------
[1] https://irssi.org/security/irssi_sa_2018_01.txt
|
