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ubuntucveUbuntu.comUB:CVE-2013-5580
HistoryOct 01, 2013 - 12:00 a.m.

CVE-2013-5580

2013-10-0100:00:00
ubuntu.com
ubuntu.com
7

CVSS2

4.3

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:N/AC:M/Au:N/C:N/I:N/A:P

EPSS

0.027

Percentile

90.7%

The (1) Conn_StartLogin and (2) cb_Read_Resolver_Result functions in conn.c
in ngIRCd 18 through 20.2, when the configuration option NoticeAuth is
enabled, does not properly handle the return code for the Handle_Write
function, which allows remote attackers to cause a denial of service
(assertion failure and server crash) via unspecified vectors, related to a
“notice auth” message not being sent to a new client.

Notes

Author Note
seth-arnold A workaround exists, disable NoticeAuth. Only affects 20, 20.1, and 20.2.

CVSS2

4.3

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:N/AC:M/Au:N/C:N/I:N/A:P

EPSS

0.027

Percentile

90.7%