Mandriva Linux Security Advisory 2009-234 - Multiple format string vulnerabilities in lib/silcclient/client_entry.c in Secure Internet Live Conferencing (SILC) Toolkit before 1.1.10, and SILC Client before 1.1.8, allow remote attackers to execute arbitrary code via format string specifiers in a nickname field, related to the (1) silc_client_add_client, (2) silc_client_update_client, and (3) silc_client_nickname_format functions. The silc_asn1_encoder function in lib/silcasn1/silcasn1_encode.c in Secure Internet Live Conferencing (SILC) Toolkit before 1.1.8 allows remote attackers to overwrite a stack location and possibly execute arbitrary code via a crafted OID value, related to incorrect use of a %lu format string. The silc_http_server_parse function in lib/silchttp/silchttpserver.c in the internal HTTP server in silcd in Secure Internet Live Conferencing (SILC) Toolkit before 1.1.9 allows remote attackers to overwrite a stack location and possibly execute arbitrary code via a crafted Content-Length header, related to incorrect use of a %lu format string. Multiple format string vulnerabilities in lib/silcclient/command.c in Secure Internet Live Conferencing (SILC) Toolkit before 1.1.10, and SILC Client 1.1.8 and earlier, allow remote attackers to execute arbitrary code via format string specifiers in a channel name, related to (1) silc_client_command_topic, (2) silc_client_command_kick, (3) silc_client_command_leave, and (4) silc_client_command_users. This update provides a solution to these vulnerabilities. Packages for MES5 was not provided previously, this update addresses this problem. Packages for 2008.0 are being provided due to extended support for Corporate products.
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Mandriva Linux Security Advisory MDVSA-2009:234-2
http://www.mandriva.com/security/
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Package : silc-toolkit
Date : December 5, 2009
Affected: 2008.0
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Problem Description:
Multiple vulnerabilities was discovered and corrected in silc-toolkit:
Multiple format string vulnerabilities in lib/silcclient/client_entry.c
in Secure Internet Live Conferencing (SILC) Toolkit before 1.1.10, and
SILC Client before 1.1.8, allow remote attackers to execute arbitrary
code via format string specifiers in a nickname field, related to the
(1) silc_client_add_client, (2) silc_client_update_client, and (3)
silc_client_nickname_format functions (CVE-2009-3051).
The silc_asn1_encoder function in lib/silcasn1/silcasn1_encode.c in
Secure Internet Live Conferencing (SILC) Toolkit before 1.1.8 allows
remote attackers to overwrite a stack location and possibly execute
arbitrary code via a crafted OID value, related to incorrect use of
a %lu format string (CVE-2008-7159).
The silc_http_server_parse function in lib/silchttp/silchttpserver.c in
the internal HTTP server in silcd in Secure Internet Live Conferencing
(SILC) Toolkit before 1.1.9 allows remote attackers to overwrite
a stack location and possibly execute arbitrary code via a crafted
Content-Length header, related to incorrect use of a %lu format string
(CVE-2008-7160).
Multiple format string vulnerabilities in lib/silcclient/command.c
in Secure Internet Live Conferencing (SILC) Toolkit before 1.1.10,
and SILC Client 1.1.8 and earlier, allow remote attackers to execute
arbitrary code via format string specifiers in a channel name, related
to (1) silc_client_command_topic, (2) silc_client_command_kick,
(3) silc_client_command_leave, and (4) silc_client_command_users
(CVE-2009-3163).
This update provides a solution to these vulnerabilities.
Update:
Packages for MES5 was not provided previousely, this update addresses
this problem.
Packages for 2008.0 are being provided due to extended support for
Corporate products.
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References:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-3051
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-7159
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-7160
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-3163
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Updated Packages:
Mandriva Linux 2008.0:
4deec485d40326e0739b7da3998787ed 2008.0/i586/libsilc-1.1_2-1.1.2-2.2mdv2008.0.i586.rpm
c3e7b417ad4cbb458e099794cab7405a 2008.0/i586/libsilcclient-1.1_2-1.1.2-2.2mdv2008.0.i586.rpm
826d5dca133332e52f0f85dad21c940a 2008.0/i586/silc-toolkit-1.1.2-2.2mdv2008.0.i586.rpm
e5b0fda04c3caa276f3b1756ac838c89 2008.0/i586/silc-toolkit-devel-1.1.2-2.2mdv2008.0.i586.rpm
4901eb44eaf1632da20c1e460b23edbc 2008.0/SRPMS/silc-toolkit-1.1.2-2.2mdv2008.0.src.rpm
Mandriva Linux 2008.0/X86_64:
9ee2ebe46efbfc9ae9254dd37312dd69 2008.0/x86_64/lib64silc-1.1_2-1.1.2-2.2mdv2008.0.x86_64.rpm
351348a77adbcc686df498b9164ffe0c 2008.0/x86_64/lib64silcclient-1.1_2-1.1.2-2.2mdv2008.0.x86_64.rpm
995aabe91251d812e5b4aa86e5d3e775 2008.0/x86_64/silc-toolkit-1.1.2-2.2mdv2008.0.x86_64.rpm
a93052fa1de76316511e1867b7295f47 2008.0/x86_64/silc-toolkit-devel-1.1.2-2.2mdv2008.0.x86_64.rpm
4901eb44eaf1632da20c1e460b23edbc 2008.0/SRPMS/silc-toolkit-1.1.2-2.2mdv2008.0.src.rpm
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To upgrade automatically use MandrivaUpdate or urpmi. The verification
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All packages are signed by Mandriva for security. You can obtain the
GPG public key of the Mandriva Security Team by executing:
gpg --recv-keys --keyserver pgp.mit.edu 0x22458A98
You can view other update advisories for Mandriva Linux at:
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If you want to report vulnerabilities, please contact
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Type Bits/KeyID Date User ID
pub 1024D/22458A98 2000-07-10 Mandriva Security Team
<security*mandriva.com>
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