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Gentoo FoundationGLSA-200410-13

HistoryOct 15, 2004 - 12:00 a.m.

BNC: Input validation flaw

2004-10-1500:00:00

Gentoo Foundation

security.gentoo.org

7.5 High

CVSS2

Access Vector

NETWORK

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

0.006 Low

EPSS

Percentile

79.0%

JSON

Background

BNC is an IRC proxying server

Description

A flaw exists in the input parsing of BNC where part of the sbuf_getmsg() function handles the backspace character incorrectly.

Impact

A remote user could issue commands using fake authentication credentials and possibly gain access to scripts running on the client side.

Workaround

There is no known workaround at this time.

Resolution

All BNC users should upgrade to the latest version:

 # emerge sync
 
 # emerge -pv "&gt;=net-irc/bnc-2.8.9"
 # emerge "&gt;=net-irc/bnc-2.8.9"

OSVersionArchitecturePackageVersionFilename
Gentooanyallnet-irc/bnc< 2.8.9UNKNOWN

OS	Version	Architecture	Package	Version	Filename
Gentoo	any	all	net-irc/bnc	< 2.8.9	UNKNOWN

7.5 High

CVSS2

Access Vector

NETWORK

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

0.006 Low

EPSS

Percentile

79.0%

JSON

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