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[ GLSA 200805-05 ] Wireshark: Denial of Service
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PostPosted: Wed May 07, 2008 11:26 pm    Post subject: [ GLSA 200805-05 ] Wireshark: Denial of Service Reply with quote

Gentoo Linux Security Advisory

Title: Wireshark: Denial of Service (GLSA 200805-05)
Severity: normal
Exploitable: remote
Date: May 07, 2008
Bug(s): #215276
ID: 200805-05

Synopsis

Multiple Denial of Service vulnerabilities have been discovered in Wireshark.

Background

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

Affected Packages

Package: net-analyzer/wireshark
Vulnerable: < 1.0.0
Unaffected: >= 1.0.0
Architectures: All supported architectures


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


References

CVE-2008-1561
CVE-2008-1562
CVE-2008-1563
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