Irssi Security Vulnerabilities

CVE-2023-29132

Irssi 1.3.x and 1.4.x before 1.4.4 has a use-after-free because of use of a stale special collector reference. This occurs when printing of a non-formatted line is concurrent with printing of a formatted...

CVE-2019-15717

Irssi 1.2.x before 1.2.2 has a use-after-free if the IRC server sends a double...

CVE-2019-13045

Irssi before 1.0.8, 1.1.x before 1.1.3, and 1.2.x before 1.2.1, when SASL is enabled, has a use after free when sending SASL login to the...

CVE-2019-5882

Irssi 1.1.x before 1.1.2 has a use after free when hidden lines are expired from the scroll...

CVE-2018-7050

An issue was discovered in Irssi before 1.0.7 and 1.1.x before 1.1.1. A NULL pointer dereference occurs for an "empty"...

CVE-2018-7052

An issue was discovered in Irssi before 1.0.7 and 1.1.x before 1.1.1. When the number of windows exceeds the available space, a crash due to a NULL pointer dereference would...

CVE-2018-7051

An issue was discovered in Irssi before 1.0.7 and 1.1.x before 1.1.1. Certain nick names could result in out-of-bounds access when printing theme...

CVE-2018-7053

An issue was discovered in Irssi before 1.0.7 and 1.1.x before 1.1.1. There is a use-after-free when SASL messages are received in an unexpected...

CVE-2018-7054

An issue was discovered in Irssi before 1.0.7 and 1.1.x before 1.1.1. There is a use-after-free when a server is disconnected during netsplits. NOTE: this issue exists because of an incomplete fix for...

CVE-2018-5207

When using an incomplete variable argument, Irssi before 1.0.6 may access data beyond the end of the...

CVE-2018-5208

In Irssi before 1.0.6, a calculation error in the completion code could cause a heap buffer overflow when completing certain...

CVE-2018-5206

When the channel topic is set without specifying a sender, Irssi before 1.0.6 may dereference a NULL...

CVE-2018-5205

When using incomplete escape codes, Irssi before 1.0.6 may access data beyond the end of the...

CVE-2017-15721

In Irssi before 1.0.5, certain incorrectly formatted DCC CTCP messages could cause a NULL pointer dereference. This is a separate, but similar, issue relative to...

CVE-2017-15722

In certain cases, Irssi before 1.0.5 may fail to verify that a Safe channel ID is long enough, causing reads beyond the end of the...

CVE-2017-15227

Irssi before 1.0.5, while waiting for the channel synchronisation, may incorrectly fail to remove destroyed channels from the query list, resulting in use-after-free conditions when updating the state later...

CVE-2017-15228

Irssi before 1.0.5, when installing themes with unterminated colour formatting sequences, may access data beyond the end of the...

CVE-2017-15723

In Irssi before 1.0.5, overlong nicks or targets may result in a NULL pointer dereference while splitting the...

CVE-2017-10966

An issue was discovered in Irssi before 1.0.4. While updating the internal nick list, Irssi could incorrectly use the GHashTable interface and free the nick while updating it. This would then result in use-after-free conditions on each access of the hash...

CVE-2017-10965

An issue was discovered in Irssi before 1.0.4. When receiving messages with invalid time stamps, Irssi would try to dereference a NULL...

CVE-2017-9469

In Irssi before 1.0.3, when receiving certain incorrectly quoted DCC files, it tries to find the terminating quote one byte before the allocated memory. Thus, remote attackers might be able to cause a...

CVE-2017-9468

In Irssi before 1.0.3, when receiving a DCC message without source nick/host, it attempts to dereference a NULL pointer. Thus, remote IRC servers can cause a...

CVE-2017-7191

The netjoin processing in Irssi 1.x before 1.0.2 allows attackers to cause a denial of service (use-after-free) and possibly execute arbitrary code via unspecified...

CVE-2017-5356

Irssi before 0.8.21 allows remote attackers to cause a denial of service (out-of-bounds read and crash) via a string containing a formatting sequence (%[) without a closing bracket...

CVE-2017-5196

Irssi 0.8.18 before 0.8.21 allows remote attackers to cause a denial of service (out-of-bounds read and crash) via vectors involving strings that are not...

CVE-2017-5195

Irssi 0.8.17 before 0.8.21 allows remote attackers to cause a denial of service (out-of-bounds read and crash) via a crafted ANSI x8 color...

CVE-2017-5193

The nickcmp function in Irssi before 0.8.21 allows remote attackers to cause a denial of service (NULL pointer dereference and crash) via a message without a...

CVE-2017-5194

Use-after-free vulnerability in Irssi before 0.8.21 allows remote attackers to cause a denial of service (crash) via an invalid nick...

CVE-2016-7045

The format_send_to_gui function in the format parsing code in Irssi before 0.8.20 allows remote attackers to cause a denial of service (heap corruption and crash) via vectors involving the length of a...

CVE-2016-7044

The unformat_24bit_color function in the format parsing code in Irssi before 0.8.20, when compiled with true-color enabled, allows remote attackers to cause a denial of service (heap corruption and crash) via an incomplete 24bit color...

CVE-2010-1155

Irssi before 0.8.15, when SSL is used, does not verify that the server hostname matches a domain name in the subject's Common Name (CN) field or a Subject Alternative Name field of the X.509 certificate, which allows man-in-the-middle attackers to spoof IRC servers via an arbitrary...

CVE-2010-1156

core/nicklist.c in Irssi before 0.8.15 allows remote attackers to cause a denial of service (NULL pointer dereference and application crash) via vectors related to an attempted fuzzy nick match at the instant that a victim leaves a...

CVE-2009-1959

Off-by-one error in the event_wallops function in fe-common/irc/fe-events.c in irssi 0.8.13 allows remote IRC servers to cause a denial of service (crash) via an empty command, which triggers a one-byte buffer under-read and a one-byte buffer...

CVE-2007-4397

Multiple CRLF injection vulnerabilities in (1) xmms-thing 1.0, (2) XMMS Remote Control Script 1.07, (3) Disrok 1.0, (4) a2x 0.0.1, (5) Another xmms-info script 1.0, (6) XChat-XMMS 0.8.1, and other unspecified scripts for XChat allow user-assisted remote attackers to execute arbitrary IRC commands.....

CVE-2007-4398

Multiple CRLF injection vulnerabilities in the (1) now-playing.rb and (2) xmms.pl 1.1 scripts for WeeChat allow user-assisted remote attackers to execute arbitrary IRC commands via CRLF sequences in the name of the song in a .mp3...

CVE-2007-4396

Multiple CRLF injection vulnerabilities in (1) ixmmsa.pl 0.3, (2) l33tmusic.pl 2.00, (3) mpg123.pl 0.01, (4) ogg123.pl 0.01, (5) xmms.pl 2.0, (6) xmms2.pl 1.1.3, and (7) xmmsinfo.pl 1.1.1.1 scripts for irssi before 0.8.11 allow user-assisted remote attackers to execute arbitrary IRC commands via...

CVE-2007-4399

CRLF injection vulnerability in the xmms.bx 1.0 script for BitchX allows user-assisted remote attackers to execute arbitrary IRC commands via CRLF sequences in the name of the song in a .mp3...

CVE-2006-0458

The DCC ACCEPT command handler in irssi before 0.8.9+0.8.10rc5-0ubuntu4.1 in Ubuntu Linux, and possibly other distributions, allows remote attackers to cause a denial of service (application crash) via certain crafted arguments in a DCC...

CVE-2003-1020

The format_send_to_gui function in formats.c for irssi before 0.8.9 allows remote IRC users to cause a denial of service...

CVE-2002-1840

irssi IRC client 0.8.4, when downloaded after 14-March-2002, could contain a backdoor in the configuration file, which allows remote attackers to access the...

CVE-2002-0983

IRC client irssi in irssi-text before 0.8.4 allows remote attackers to cause a denial of service (crash) via an IRC channel that has a long topic followed by a certain string, possibly triggering a buffer...