Unknown vulnerability several dissectors in Ethereal 0.9.0 through 0.10.11 allows remote attackers to cause a denial of service (application crash) by reassembling certain packets.

Updated Ethereal packages that fix various security vulnerabilities are now available.

This update has been rated as having moderate security impact by the Red Hat Security Response Team.

The ethereal package is a program for monitoring network traffic.

A number of security flaws have been discovered in Ethereal. On a system where Ethereal is running, a remote attacker could send malicious packets to trigger these flaws and cause Ethereal to crash or potentially execute arbitrary code. The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the names CVE-2005-2360, CVE-2005-2361, CVE-2005-2362, CVE-2005-2363, CVE-2005-2364, CVE-2005-2365, CVE-2005-2366, and CVE-2005-2367 to these issues.

Users of ethereal should upgrade to these updated packages, which contain version 0.10.12 which is not vulnerable to these issues.

Note: To reduce the risk of future vulnerabilities in Ethereal, the ethereal and tethereal programs in this update have been compiled as Position Independent Executables (PIE) for Red Hat Enterprise Linux 3 and 4. In addition FORTIFY_SOURCE has been enabled for Red Hat Enterprise Linux 4 packages to provide compile time and runtime buffer checks.

A number of vulnerabilities were discovered in versions of Ethereal prior to version 0.10.12, including :

The SMB dissector could overflow a buffer or exhaust memory (CVE-2005-2365).

iDefense discovered that several dissectors are vulnerable to format string overflows (CVE-2005-2367).

A number of other portential crash issues in various dissectors have also been corrected.

This update provides Ethereal 0.10.12 which is not vulnerable to these issues.

The remote host is affected by the vulnerability described in GLSA-200507-27 (Ethereal: Multiple vulnerabilities)

    There are numerous vulnerabilities in versions of Ethereal prior     to 0.10.12, including:
    The SMB dissector could overflow a     buffer or exhaust memory (CAN-2005-2365).
    iDEFENSE discovered     that several dissectors are vulnerable to format string overflows     (CAN-2005-2367).
    Additionally multiple potential crashes in     many dissectors have been fixed, see References for further     details.
  Impact :

    An attacker might be able to use these vulnerabilities to crash     Ethereal or execute arbitrary code with the permissions of the user     running Ethereal, which could be the root user.
  Workaround :

    There is no known workaround at this time.

ID	Name	Product	Family	Severity
21850	CentOS 3 / 4 : ethereal (CESA-2005:687)	Nessus	CentOS Local Security Checks	high
19891	Mandrake Linux Security Advisory : ethereal (MDKSA-2005:131)	Nessus	Mandriva Local Security Checks	high
19424	RHEL 2.1 / 3 / 4 : ethereal (RHSA-2005:687)	Nessus	Red Hat Local Security Checks	high
19329	GLSA-200507-27 : Ethereal: Multiple vulnerabilities	Nessus	Gentoo Local Security Checks	high

Detections

Analytics

CVE-2005-2362

high

Tenable Plugins

high

high

high

high