Drupal versions 5.x and 6.x has open redirection

TYPO3 before 4.5.4 allows Information Disclosure in the backend.

MediaWiki before 1.17.1 does not check for read permission before handling action=ajax requests, which allows remote attackers to obtain sensitive information by (1) leveraging the SpecialUpload::ajaxGetExistsWarning function, or by (2) leveraging an extension, as demonstrated by the CategoryTree, ExtTab, and InlineEditor extensions.

libxml2, as used in Google Chrome before 16.0.912.63, allows remote attackers to cause a denial of service (out-of-bounds read) via unspecified vectors.

An signedness error, leading to out of stack-based buffer read flaw was found in the way lighttpd, a lightning fast webserver with light system requirements, processed certain invalid base64 HTTP authentication tokens. A remote attacker could provide a specially crafted HTTP authentication request, leading to denial of service (lighttpd daemon crash due to an signedness error while processing the token).

Upstream bug report: [1] http://redmine.lighttpd.net/issues/2370

Upstream patch (with testcase and NEWS update): [2] http://redmine.lighttpd.net/projects/lighttpd/repository/revisions/2806/diff

References: [3] http://download.lighttpd.net/lighttpd/security/lighttpdsa201101.txt (upstream advisory) [4] http://www.openwall.com/lists/oss-security/2011/11/29/8 (CVE request) [5] http://www.openwall.com/lists/oss-security/2011/11/29/13 (CVE assignment)

An information disclosure flaw was found in the way MediaWiki, the wiki engine, processed 'curid' and 'oldid' request paramaters. A remote attacker could use this flaw to enumerate page titles on private MediaWiki installations.

Upstream bug report: [1] https://bugzilla.wikimedia.org/showbug.cgi?id=32276

An information disclosure flaw was found in the way MediaWiki, the wiki engine, performed action=ajax requests dispatching to relevant internal functions. These requests were dispatched without any read permissions checks being done. A remote attacker could use this flaw to obtain data on private MediaWiki installations.

Upstream bug report: [2] https://bugzilla.wikimedia.org/showbug.cgi?id=32616

References: [3] http://lists.wikimedia.org/pipermail/mediawiki-announce/2011-November/000104.html [4] http://www.openwall.com/lists/oss-security/2011/11/29/6 [5] https://bugs.gentoo.org/showbug.cgi?id=392383

Upstream patch (covering both of the issues): [6] http://www.mediawiki.org/wiki/Special:Code/MediaWiki/104506

Integer overflow in the exifprocessIFDTAG function in exif.c in the exif extension in PHP 5.4.0beta2 on 32-bit platforms allows remote attackers to read the contents of arbitrary memory locations or cause a denial of service via a crafted offsetval value in an EXIF header in a JPEG file, a different vulnerability than CVE-2011-0708.

A local file inclusion flaw was found in the way XML import plug-in of phpMyAdmin, a tool written in PHP intended to handle the administration of MySQL over the World Wide Web, performed import of malformed XML files. A remote attacker could provide a specially-crafted XML file, which once imported into the phpMyAdmin service instance would lead to arbitrary local file (accessible with the privileges of the phpMyAdmin user) read / retrieval.

References: [1] http://seclists.org/fulldisclosure/2011/Nov/21 [2] http://www.wooyun.org/bugs/wooyun-2010-03185

Double free vulnerability in libxml2, as used in Google Chrome before 14.0.835.163, allows remote attackers to cause a denial of service or possibly have unspecified other impact via vectors related to XPath handling.

It was found that the different user screens (HTML forms) of the Samba Web Administration Tool suite were missing protection against cross-site request forgery (CSRF) attacks. A remote attacker could provide a specially-crafted URL, which once visited by an authenticated Samba SWAT user could lead to unauthorized commands execution with the privileges of that user (for example shut down or start the samba daemons, add or remove shares, printers, user accounts if the victim authenticated as privileged user to Samba SWAT).

Upstream bug report: [1] https://bugzilla.samba.org/showbug.cgi?id=8290 (not public yet)

Acknowledgements:

Red Hat would like to thank the Samba project for reporting this issue. Upstream acknowledges Yoshihiro Ishikawa of LAC Co., Ltd. as the original reporter.

It was found that in libpng, prior to 1.2.45, the error function received a NULL pointer, expressed erroneously as '\0', instead of the empty string "". This error was introduced in libpng-1.2.20, and pngdefaulterror() will crash in this case.

This was be fixed in libpng-1.5.4, libpng-1.4.8, libpng-1.2.45, and libpng-1.0.55.

Patch: http://libpng.git.sourceforge.net/git/gitweb.cgi?p=libpng/libpng;a=commitdiff;h=9dad5e37aef295b4ef8dea39392b652deebc9261

It was reported [1] that the fix for CVE-2004-0421 in libpng was inadvertently reverted during the 1.2.23 development cycle. The original flaw could be used to cause a denial of service via a carefully-crafted PNG image.

This would affect all versions of libpng >=1.2.23, including 1.4.x and 1.5.x.

[1] http://sourceforge.net/mailarchive/forum.php?threadname=BANLkTikrnU6FJNQYFvwmt78hwpgKPVRd1Q%40mail.gmail.com&forumname=png-mng-implement

It was found that cURL performed client credentials delegation during the client-to-server GSS security mechanisms negotiation. A remote, rogue server could use this flaw to impersonate the cURL client (victim) against the correct (originally intended) server, potentially leading to denial of cURL tool services for victim client.

ftpd.c in the GSS-API FTP daemon in MIT Kerberos Version 5 Applications (aka krb5-appl) 1.0.1 and earlier does not check the krb5setegid return value, which allows remote authenticated users to bypass intended group access restrictions, and create, overwrite, delete, or read files, via standard FTP commands, related to missing autoconf tests in a configure script.

An infinite loop was found in the way moddavsvn module of the subversion concurrent version control system processed certain data sets, when SVNPathAuthz configuration directive with value of 'shortcircuit' was used. A remote attacker could use this flaw to cause the httpd child process to consume excessive amount of system memory.

Acknowledgements:

Red Hat would like to thank the Apache Subversion project for reporting this issue. Upstream acknowledges Ivan Zhakov of VisualSVN as the original reporter.

A NULL pointer dereference flaw was found in the way moddavsvn module of the subversion concurrent version control system processed requests submitted against the URL of a baselined resource. A remote attacker could use this flaw to cause the httpd child process to crash.

Acknowledgements:

Red Hat would like to thank the Apache Subversion project for reporting this issue. Upstream acknowledges Joe Schaefer of Apache Software Foundation as the original reporter.

Apache Portable Runtime (APR) is vulnerable to a denial of service, caused by an error in the aprfnmatch() function when processing specific patterns with the "" wildcard. A remote attacker could exploit this vulnerability to consume all available CPU and memory resources resulting in a denial of service.

The configuration merger in itk.c in the Steinar H. Gunderson mpm-itk Multi-Processing Module 2.2.11-01 and 2.2.11-02 for the Apache HTTP Server does not properly handle certain configuration sections that specify NiceValue but not AssignUserID, which might allow remote attackers to gain privileges by leveraging the root uid and root gid of an mpm-itk process.

The vsffilenamepassesfilter function in ls.c in vsftpd before 2.3.3 allows remote authenticated users to cause a denial of service (CPU consumption and process slot exhaustion) via crafted glob expressions in STAT commands in multiple FTP sessions, a different vulnerability than CVE-2010-2632.

avahi-core/socket.c in avahi-daemon in Avahi before 0.6.29 allows remote attackers to cause a denial of service (infinite loop) via an empty mDNS (1) IPv4 or (2) IPv6 UDP packet to port 5353. NOTE: this vulnerability exists because of an incorrect fix for CVE-2010-2244.

Last updated 24 July 2024

libxml2 before 2.7.8, as used in Google Chrome before 7.0.517.44, Apple Safari 5.0.2 and earlier, and other products, reads from invalid memory locations during processing of malformed XPath expressions, which allows context-dependent attackers to cause a denial of service (application crash) via a crafted XML document.

Description of problem: INET-DIAG is inconsistent about how it looks up the bytecode contained in a netlink message, making it possible for a user to cause the kernel to execute unaudited INET-DIAG bytecode. This can be abused to make the kernel enter an infinite loop, and possibly other consequences.

Reference: http://www.spinics.net/lists/netdev/msg145899.html

Acknowledgements:

Red Hat would like to thank Nelson Elhage for reporting this issue.

Description of problem: In bcmconnect() (in net/can/bcm.c), there is the following code:

sprintf(bo->procname, "%p", sock);

"procname" is a 9-byte char array. On 64-bit platforms, up to 17 bytes may be copied into the buffer. Fortunately, structure padding will most likely prevent this from being a problem, except for the trailing NULL byte, which may overwrite the first byte of the next heap object.

Reference: http://www.spinics.net/lists/netdev/msg145791.html

Acknowledgements:

Red Hat would like to thank Dan Rosenberg for reporting this issue.

Description of problem: Due to bad parsing of malformed X.25 facilities, a remote attacker can cause a kernel panic due to heap corruption (assuming both parties are communicating using X.25).

Reference: http://www.spinics.net/lists/netdev/msg145786.html http://www.spinics.net/lists/netdev/msg145873.html

Acknowledgements:

Red Hat would like to thank Dan Rosenberg for reporting this issue.

Last updated 24 July 2024

Description of problem: The CONFIGSTACKGROWSDOWN variant of setupargpages() does not check the size of the argument/environment area on the stack. When it is unworkably large, shiftargpages() hits its BUGON. This is exploitable with a very large RLIMITSTACK limit, to create a crash pretty easily. Check that the initial stack is not too large to make it possible to map in any executable. We're not checking that the actual executable (or intepreter, for binfmtelf) will fit. So those mappings might clobber part of the initial stack mapping. But that is just userland lossage that userland made happen, not a kernel problem.

Upstream commit: http://git.kernel.org/linus/1b528181b2ffa14721fb28ad1bd539fe1732c583

Reference: http://grsecurity.net/~spender/64bitdos.c

Acknowledgements:

Red Hat would like to thank Brad Spengler for reporting this issue.

Description of problem: Reported by Nelson Elhage.

CVE-2010-3848 AFECONET kernel stack overflow CVE-2010-3849 AFECONET saddr->cookie NULL dereferences CVE-2010-3850 AFECONET SIOCSIFADDR ioctl does not check privileges

The two main vulnerabilities lie in the econetsendmsg() function. If CONFIGECONETAUNUDP, the function declares a variable-length array of iovec's on the stack:

static int econetsendmsg(struct kiocb iocb, struct socket sock, struct msghdr msg, sizet len) { ... #ifdef CONFIGECONETAUNUDP ... struct iovec iov[msg->msgiovlen+1]; ... #endif

"msg->msgiovlen" is a user-controlled value <= 1024; 1024 'struct iovec's is enough to overflow the kernel stack and clobber the 'threadinfo' struct on either 32- or 64-bit systems with or without CONFIG4KSTACKS.

The code populates 'iov' with user-controlled values, so this is almost certainly exploitable for privesc.

The second bug is conveniently labeled as such for anyone who cares to look:

/ BUG: saddr may be NULL / eb->cookie = saddr->cookie;

In fact, 'saddr' comes from userspace and may be NULL (if non-NULL, it will have been copied to kernelspace), leading to a NULL-pointer dereference. This saddr->cookie dereference appears twice, once in the "hardware" case and once in the "UDP emulation" case. This is easily exploitable for an oops, but probably not anything more.

The final issue is in the ecdevioctl function. The SIOCSIFADDR ioctl does not check privileges, allowing an unprivileged user to assign econet addresses to arbitrary interfaces. It is possible this is intentional, but AFAIK it would be unusual for SIOCSIFADDR to be unprivileged, so this may be an accident.

Note that it is necessary to use this property in order to make the first two bugs exploitable, since econetsendmsg will return almost immediately if no econet addresses are configured.

Reference: http://seclists.org/oss-sec/2010/q4/236

Multiple buffer overflows in demo programs in FreeType before 2.4.0 allow remote attackers to cause a denial of service (application crash) or possibly execute arbitrary code via a crafted font file.

Heap-based buffer overflow in the InsIUP function in truetype/ttinterp.c in FreeType before 2.4.0, when TrueType bytecode support is enabled, allows remote attackers to cause a denial of service (application crash) or possibly execute arbitrary code via a crafted font file.