Advisory: Ubuntu Essential and Critical Security Patch Updates - Page 363

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Ubuntu: PostgreSQL 8.1 regression

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USN-417-1 fixed several vulnerabilities in the PostgreSQL server. Unfortunately this update had a regression that caused some valid queries to be aborted with a type error. This update corrects that problem. We apologize for the inconvenience.

Ubuntu: Bind vulnerabilities

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A flaw was discovered in Bind's DNSSEC validation code. Remote attackers could send a specially crafted DNS query which would cause the Bind server to crash, resulting in a denial of service. Only servers configured to use DNSSEC extensions were vulnerable.

Ubuntu: PostgreSQL vulnerabilities USN-417-1

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Jeff Trout discovered that the PostgreSQL server did not sufficiently check data types of SQL function arguments in some cases. An authenticated attacker could exploit this to crash the database server or read out arbitrary locations in the server's memory, which could allow retrieving database content the attacker should not be able to see. (CVE-2007-0555)

Ubuntu: teTeX vulnerability

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USN-410-1 fixed vulnerabilities in the poppler PDF loader library. This update provides the corresponding updates for a copy of this code in tetex-bin in Ubuntu 5.10. Versions of tetex-bin after Ubuntu 5.10 use poppler directly and do not need a separate update.

Ubuntu: Squid vulnerabilities

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David Duncan Ross Palmer and Henrik Nordstrom discovered that squid incorrectly handled special characters in FTP URLs. Remote users with access to squid could crash the server leading to a denial of service.

Ubuntu: BlueZ vulnerability

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A flaw was discovered in the HID daemon of bluez-utils. A remote attacker could gain control of the mouse and keyboard if hidd was enabled. This does not affect a default Ubuntu installation, since hidd is normally disabled.

Ubuntu: GeoIP vulnerability

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Dean Gaudet discovered that the GeoIP update tool did not validate the filename responses from the update server. A malicious server, or man-in-the-middle system posing as a server, could write to arbitrary files with user privileges.

Ubuntu: libsoup vulnerability

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Roland Lezuo and Josselin Mouette discovered that the HTTP server code in libsoup did not correctly verify request headers. Remote attackers could crash applications using libsoup by sending a crafted HTTP request, resulting in a denial of service.

Ubuntu: poppler vulnerability USN-631-1

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The poppler PDF loader library did not limit the recursion depth of the page model tree. By tricking a user into opening a specially crafter PDF file, this could be exploited to trigger an infinite loop and eventually crash an application that uses this library. kpdf in Ubuntu 5.10, and KOffice in all Ubuntu releases contains a copy of this code and thus is affected as well.

Ubuntu: krb5 vulnerability

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The server-side portion of Kerberos' RPC library had a memory management flaw which allowed users of that library to call a function pointer located in unallocated memory. By doing specially crafted calls to the kadmind server, a remote attacker could exploit this to execute arbitrary code with root privileges on the target computer.

Ubuntu: libgtop2 vulnerability

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Liu Qishuai discovered a buffer overflow in the /proc parsing routines in libgtop. By creating and running a process in a specially crafted long path and tricking an user into running gnome-system-monitor, an attacker could exploit this to execute arbitrary code with the user's privileges.

Ubuntu: fetchmail vulnerability

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It was discovered that fetchmail did not correctly require TLS negotiation in certain situations. This would result in a user's unencrypted password being sent across the network.If fetchmail has been configured to use the "sslproto tls1", "sslcertck", or "sslfingerprint" options with a server that does not correctly support TLS negotiation, this update may cause fetchmail to (correctly) abort authentication.

Ubuntu: MadWifi vulnerability

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Laurent Butti, Jerome Razniewski, and Julien Tinnes discovered that the MadWifi wireless driver did not correctly check packet contents when receiving scan replies. A remote attacker could send a specially crafted packet and execute arbitrary code with root privileges.

Ubuntu: Avahi vulnerability

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A flaw was discovered in Avahi's handling of compressed DNS packets. If a specially crafted reply were received over the network, the Avahi daemon would go into an infinite loop, causing a denial of service.

Ubuntu: Thunderbird vulnerabilities

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Georgi Guninski and David Bienvenu discovered that long Content-Type and RFC2047-encoded headers we vulnerable to heap overflows. By tricking the user into opening a specially crafted email, an attacker could execute arbitrary code with user privileges. (CVE-2006-6506) Various flaws have been reported that allow an attacker to execute arbitrary code with user privileges or bypass internal XSS protections by tricking the user into opening a malicious email containing JavaScript. Please note that JavaScript is disabled by default for emails, and it is not recommended to enable it. (CVE-2006-6497, CVE-2006-6498, CVE-2006-6499, CVE-2006-6501, CVE-2006-6502, CVE-2006-6503)