Wireshark: Denial of service — GLSA 200805-05

Multiple Denial of Service vulnerabilities have been discovered in Wireshark.

Affected packages

Package	net-analyzer/wireshark on all architectures
Affected versions	< 1.0.0
Unaffected versions	>= 1.0.0

Background

Wireshark is a network protocol analyzer with a graphical front-end.

Description

Errors exist in:

the X.509sat dissector because of an uninitialized variable and the Roofnet dissector because a NULL pointer may be passed to the g_vsnprintf() function (CVE-2008-1561).
the LDAP dissector because a NULL pointer may be passed to the ep_strdup_printf() function (CVE-2008-1562).
the SCCP dissector because it does not reset a pointer once the packet has been processed (CVE-2008-1563).

Impact

A remote attacker could exploit these vulnerabilities by sending a malformed packet or enticing a user to read a malformed packet trace file, causing a Denial of Service.

Workaround

Disable the X.509sat, Roofnet, LDAP, and SCCP dissectors.

Resolution

All Wireshark users should upgrade to the latest version:

 # emerge --sync
 # emerge --ask --oneshot --verbose ">=net-analyzer/wireshark-1.0.0"

References

Release date
May 07, 2008

Latest revision
May 07, 2008: 01

Severity
normal

Exploitable
remote

Bugzilla entries

215276