Ubuntu 4.10 / 5.04 / 5.10 : sudo vulnerability (USN-235-1)

Charles Morris discovered a privilege escalation vulnerability in sudo. On executing Perl scripts with sudo, various environment variables that affect Perl's library search path were not cleaned properly. If sudo is set up to grant limited sudo execution of Perl scripts to normal users, this coul...

Ubuntu 4.10 / 5.04 / 5.10 : w3c-libwww vulnerability (USN-220-1)

Sam Varshavchik discovered several buffer overflows in the HTBoundaryputblock function. By sending specially crafted HTTP multipart/byteranges MIME messages, a malicious HTTP server could trigger an out of bounds memory access in the libwww library, which causes the program that uses the library ...

Ubuntu 4.10 / 5.04 / 5.10 : linux-source-2.6.8.1/-2.6.10/-2.6.12 vulnerabilities (USN-231-1)

Rudolf Polzer reported an abuse of the 'loadkeys' command. By redefining one or more keys and tricking another user like root into logging in on a text console and typing something that involves the redefined keys, a local user could cause execution of arbitrary commands with the privileges of th...

Ubuntu 4.10 / 5.04 / 5.10 : courier vulnerability (USN-226-1)

Patrick Cheong Shu Yang discovered a flaw in the user account handling of courier-authdaemon. After successful authorization, the Courier mail server granted access to deactivated accounts. Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu...

Ubuntu 4.10 / 5.04 / 5.10 : sudo vulnerability (USN-235-2)

USN-235-1 fixed a vulnerability in sudo's handling of environment variables. Tavis Ormandy noticed that sudo did not filter out the PYTHONINSPECT environment variable, so that users with the limited privilege of calling a python script with sudo could still escalate their privileges. For referenc...

Ubuntu 5.10 : nbd vulnerability (USN-237-1)

Kurt Fitzner discovered that the NBD network block device server did not correctly verify the maximum size of request packets. By sending specially crafted large request packets, a remote attacker who is allowed to access the server could exploit this to execute arbitrary code with root privilege...

Ubuntu 4.10 / 5.04 / 5.10 : fetchmail vulnerability (USN-233-1)

Steve Fosdick discovered a remote Denial of Service vulnerability in fetchmail. When using fetchmail in 'multidrop' mode, a malicious email server could cause a crash by sending an email without any headers. Since fetchmail is commonly called automatically with cron, for example, this crash could...

Ubuntu 4.10 : apache2 bug fix (USN-173-3)

USN-173-2 fixed a vulnerability in Apache's regular expression parser. However, the packages from that advisories had a bug that prevented Apache from starting. This update fixes this. We apologize for the inconvenience!. Note that Tenable Network Security has extracted the preceding description...

Ubuntu 4.10 : libxml vulnerabilities (USN-89-1)

Several buffer overflows have been discovered in libxml's FTP connection and DNS resolution functions. Supplying very long FTP URLs or IP addresses might result in execution of arbitrary code with the privileges of the process using libxml. This does not affect the core XML parsing code, which is...

Ubuntu 4.10 : libapache2-mod-python vulnerabilities (USN-80-1)

Graham Dumpleton discovered an information disclosure in the 'publisher' handle of modpython. By requesting a carefully crafted URL for a published module page, anybody can obtain extra information about internal variables, objects, and other information which is not intended to be visible. Note...

Ubuntu 5.04 : awstats vulnerability (USN-167-1)

Peter Vreugdenhil discovered a command injection vulnerability in AWStats. As part of the statistics reporting function, AWStats displays information about the most common referrer values that caused users to visit the website. Referer URLs could be crafted in a way that they contained arbitrary...

Ubuntu 4.10 : vim vulnerabilities (USN-61-1)

Javier Fernandez-Sanguino Pena noticed that the auxillary scripts 'tcltags' and 'vimspell.sh' created temporary files in an insecure manner. This could allow a symbolic link attack to create or overwrite arbitrary files with the privileges of the user invoking the script either by calling it...

Ubuntu 4.10 / 5.04 : binutils regression (USN-136-2)

It was discovered that the packages from USN-136-1 had a flawed patch with regressions that caused the ld linker to fail. The updated packages fix this. We apologize for the inconvenience. Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu...

Ubuntu 4.10 : exim4 vulnerabilities (USN-56-1)

A flaw has been found in the hostaton function, which can overflow a buffer if it is presented with an illegal IPv6 address that has more than 8 components. When supplying certain command line parameters, the input was not checked, so that a local attacker could possibly exploit the buffer overfl...

Ubuntu 4.10 / 5.04 : linux-source-2.6.10, linux-source-2.6.8.1 vulnerabilities (USN-187-1)

A Denial of Service vulnerability was detected in the stack segment fault handler. A local attacker could exploit this by causing stack fault exceptions under special circumstances scheduling, which lead to a kernel crash. CAN-2005-1767 Vasiliy Averin discovered a Denial of Service vulnerability ...

Ubuntu 4.10 / 5.04 : squid vulnerability (USN-129-1)

It was discovered that Squid did not verify the validity of DNS server responses. When Squid is started, it opens a DNS client UDP port whose number is randomly assigned by the operating system. Unless your network firewall is configured to accept DNS responses only from known good nameservers,...

Ubuntu 4.10 / 5.04 / 5.10 : netpbm-free vulnerability (USN-210-1)

A buffer overflow was found in the 'pnmtopng' conversion program. By tricking an user or automated system to process a specially crafted PNM image with pnmtopng, this could be exploited to execute arbitrary code with the privileges of the user running pnmtopng. Note that Tenable Network Security...

Ubuntu 4.10 / 5.04 : linux-source-2.6.10, linux-source-2.6.8.1 vulnerabilities (USN-137-1)

Alexander Nyberg discovered that ptrace insufficiently validated addresses on the amd64 platform so that it was possible to set an invalid segment base. A local attacker could exploit this to crash the kernel. This does not affect the i386 and powerpc platforms in any way. CAN-2005-0756 Chris...

Ubuntu 4.10 : mozilla-firefox vulnerabilities (USN-186-2)

USN-186-1 fixed several vulnerabilities in the Firefox browser for Ubuntu 5.04. This update provides fixed packages for Ubuntu 4.10, which was vulnerable to the same issues. The original advisory is available at http://www.ubuntu.com/usn/usn-186-1 Note that Tenable Network Security has extracted...

Ubuntu 4.10 : squid vulnerabilities (USN-67-1)

infamous41md discovered several Denial of Service vulnerabilities in squid. A malicious Gopher server could crash squid by sending a line bigger than 4096 bytes. CAN-2005-0094 If squid is configured to send WCPP Web Cache Communication Protocol messages to a 'home router', an attacker who was abl...