blob: 90229ac268b594c99f06e239e53c92c11e2447cd (
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
|
IRSSI-SA-2017-07 Irssi Security Advisory [1]
============================================
CVE-2017-10965, CVE-2017-10966.
Description
-----------
Two vulnerabilities have been located in Irssi.
(a) When receiving messages with invalid time stamps, Irssi would try
to dereference a NULL pointer. Found by Brian 'geeknik' Carpenter
of Geeknik Labs. (CWE-690)
CVE-2017-10965 [2] was assigned to this bug
(b) While updating the internal nick list, Irssi may incorrectly use
the GHashTable interface and free the nick while updating it. This
will then result in use-after-free conditions on each access of
the hash table. Found by Brian 'geeknik' Carpenter of Geeknik
Labs. (CWE-416 caused by CWE-227)
CVE-2017-10966 [3] was assigned to this bug
Impact
------
(a) May result in denial of service (remote crash).
(b) Undefined behaviour.
Affected versions
-----------------
All Irssi versions that we observed.
Fixed in
--------
Irssi 1.0.4
Recommended action
------------------
Upgrade to Irssi 1.0.4. Irssi 1.0.4 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 control over the ircd
(b) should not happen with a conforming ircd
Patch
-----
https://github.com/irssi/irssi/commit/5e26325317c72a04c1610ad952974e206384d291
References
----------
[1] https://irssi.org/security/irssi_sa_2017_07.txt
[2] http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-10965
[3] http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-10966
|
