SILC Client and Toolkit NICK_CHANGE buffer overflow
| silc-clienttoolkit-nickchange-bo (35281) |  High Risk |
Description:
SILC Client and Toolkit are vulnerable to a buffer overflow, caused by improper bounds checking by the client_notify.c file when handling NICK_CHANGE notifications. By changing a specially-crafted nickname, a remote attacker could overflow a buffer and execute arbitrary code on the system or cause the application to crash.
Platforms Affected:
- Pekka Riikonen, SILC Client prior to 1.1.2
- Pekka Riikonen, SILC Toolkit prior to 1.1.2
Remedy:
Upgrade to the latest version of SILC Client and Toolkit (1.1.2 or later), available from the SILC Web site. See References.
Consequences:
Gain Access
References:
- SILC Web site, SILC Toolkit 1.1.2 ChangeLog at http://silcnet.org/docs/changelog/SILC%20Toolkit%201.1.2.
- BID-24795: SILC Toolkit and SILC Client NICK_CHANGE Remote Buffer Overflow Vulnerability
- CVE-2007-3728: Buffer overflow in lib/silcclient/client_notify.c of SILC Client and SILC Toolkit before 1.1.2 allows remote attackers to cause a denial of service via NICK_CHANGE notifications.
- SA25939: SILC Client and SILC Toolkit "NICK_CHANGE" Buffer Overflow
- VUPEN/ADV-2007-2454: SILC Client and Toolkit SILC_FSM_STATE() Remote Buffer Overflow Vulnerability
Reported:
Jul 04, 2007
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