Unspecified vulnerability in the Java Runtime Environment (JRE) in Java SE component allows remote attackers to affect confidentiality, integrity, and availability via Unknown vectors.
Heap-based buffer overflow in the stringvformat function in string.c in Exim before 4.70 allows remote attackers to execute arbitrary code via an SMTP session that includes two MAIL commands in conjunction with a large message containing crafted headers, leading to improper rejection logging.
Emmanuel Bouillon reported a memory corruption flaw in CUPS daemon. A specially-crafted IPP request can cause daemon to crash or, possibly, execute arbitrary code.
Acknowledgements:
Red Hat would like to thank Emmanuel Bouillon of NATO C3 Agency for reporting this issue.
Google Chrome before 7.0.517.41 does not properly handle element maps, which allows remote attackers to cause a denial of service or possibly have unspecified other impact via vectors related to "stale elements."
The dechunk filter in PHP 5.3 through 5.3.2, when decoding an HTTP chunked encoding stream, allows context-dependent attackers to cause a denial of service (crash) and possibly trigger memory corruption via a negative chunk size, which bypasses a signed comparison, related to an integer overflow in the chunk size decoder.
Marc Schoenefeld found a flaw in the way OpenOffice.org 3.2.0 and earlier, enforced non-executable permission, when browsing macros, written in Python scripting language. If a local user was tricked into opening a specially-crafted OpenDocument Text (ODT) file, containing macros, and previewed the macro directories structure, it could lead to Python macro execution even when macros execution was disabled.
WebKit in Apple Safari before 5.0 on Mac OS X 10.5 through 10.6 and Windows, Apple Safari before 4.1 on Mac OS X 10.4, and Google Chrome before 5.0.375.70 does not properly handle a transformation of a text node that has the IBM1147 character set, which allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption and application crash) via a crafted HTML document containing a BR element, related to a "type checking issue."
Integer overflow in Mozilla Firefox 3.5.x before 3.5.11 and 3.6.x before 3.6.7, Thunderbird 3.0.x before 3.0.6 and 3.1.x before 3.1.1, and SeaMonkey before 2.0.6 allows remote attackers to execute arbitrary code via a large selection attribute in a XUL tree element, which triggers a use-after-free.
Adobe Acrobat and Reader contains an array boundary issue in Universal 3D (U3D) support that could lead to remote code execution.
Adobe Flash Player before 10.2.154.27 on Windows, Mac OS X, Linux, and Solaris and 10.2.156.12 and earlier on Android; Adobe AIR before 2.6.19140; and Authplay.dll (aka AuthPlayLib.bundle) in Adobe Reader 9.x before 9.4.4 and 10.x through 10.0.1 on Windows, Adobe Reader 9.x before 9.4.4 and 10.x before 10.0.3 on Mac OS X, and Adobe Acrobat 9.x before 9.4.4 and 10.x before 10.0.3 on Windows and Mac OS X allow remote attackers to execute arbitrary code or cause a denial of service (application crash) via crafted Flash content; as demonstrated by a Microsoft Office document with an embedded .swf file that has a size inconsistency in a "group of included constants," object type confusion, ActionScript that adds custom functions to prototypes, and Date objects; and as exploited in the wild in April 2011.
Use-after-free vulnerability in WebKit in Apple Safari before 4.0.5 allows remote attackers to execute arbitrary code or cause a denial of service (application crash) via an HTML document with improperly nested tags.
Description of problem: The handling functions for sending and receiving messages, in rdspagecopyuser(), use the unchecked copyuserinatomic functions without any access checks on user-provided pointers. As a result, by passing a kernel address as an iovec base address in recvmsg-style calls, a local user can overwrite arbitrary kernel memory, which can easily be used to escalate privileges to root.
Introduced via 7875e18e (v2.6.30-rc1).
Acknowledgements:
Red Hat would like to thank Dan Rosenberg of Virtual Security Research for reporting this issue.
Common Vulnerabilities and Exposures assigned an identifier CVE-2009-4324 to the following vulnerability:
Name: CVE-2009-4324 URL: http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-4324 Assigned: 20091214 Reference: MISC: http://blogs.adobe.com/psirt/2009/12/newadobereaderandacrobatv.html
Unspecified vulnerability in Adobe Reader and Acrobat 9.2 and earlier has unknown impact and attack vectors, as exploited in the wild in December 2009.
An unconfirmed third-party posting [1] indicates this vulnerability is in the JavaScript processing, so a proposed work-around is to disable JavaScript (Edit -> Preferences -> JavaScript). This has not been official confirmed by Adobe.
[1] http://www.shadowserver.org/wiki/pmwiki.php/Calendar/20091214
Adobe Flash Player before 9.0.277.0 and 10.x before 10.1.53.64; Adobe AIR before 2.0.2.12610; and Adobe Reader and Acrobat 9.x before 9.3.3, and 8.x before 8.2.3 on Windows and Mac OS X, allow remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via crafted SWF content, related to authplay.dll and the ActionScript Virtual Machine 2 (AVM2) newfunction instruction, as exploited in the wild in June 2010.
Adobe Flash Player contains an unspecified vulnerability that allows remote attackers to execute code or cause denial-of-service (DoS).
Exim 4.72 and earlier allows local users to gain privileges by leveraging the ability of the exim user account to specify an alternate configuration file with a directive that contains arbitrary commands, as demonstrated by the spooldirectory directive.
Description of problem: On parsing malformed X.25 facilities, decrementing the remaining length may cause it to underflow. Since the length is an unsigned integer, this will result in the loop continuing until the kernel crashes.
This patch adds checks to ensure decrementing the remaining length does not cause it to wrap around.
http://marc.info/?l=linux-netdev&m=128951543005554&w=2
Acknowledgements:
Red Hat would like to thank Dan Rosenberg for reporting this issue.
Statement:
This issue did not affect the versions of Linux kernel as shipped with Red Hat Enterprise Linux 4, 5, 6 and Red Hat Enterprise MRG as they did not include support for CCITT X.25 Packet Layer.
Google Chrome before 7.0.517.41 does not properly handle animated GIF images, which allows remote attackers to cause a denial of service (memory corruption) or possibly have unspecified other impact via a crafted image.
The XSL stylesheet implementation in WebKit in Apple Safari before 4.0, iPhone OS 1.0 through 2.2.1, and iPhone OS for iPod touch 1.1 through 2.2.1 does not properly handle XML external entities, which allows remote attackers to read arbitrary files via a crafted DTD, as demonstrated by a file:///etc/passwd URL in an entity declaration, related to an "XXE attack."
Double free vulnerability in libxml2 2.7.8 and other versions, as used in Google Chrome before 8.0.552.215 and other products, allows remote attackers to cause a denial of service or possibly have unspecified other impact via vectors related to XPath handling.
Sauli Pahlman of CERT-FI provided us with fuzzed PDF file which causes xpdf / poppler PDF parser to crash.
The crash is caused by an attempt to dereference uninitialized Gfx::parser pointer in Gfx::getPos(), which assumes parser is either NULL or valid Parser pointer.
http://cgit.freedesktop.org/poppler/poppler/tree/poppler/Gfx.cc?id=71063d51#n879
Description of problem: Both PPPoL2TP (in net/l2tp/l2tpppp.c, pppol2tpsendmsg()) and IPoL2TP (in net/l2tp/l2tpip.c, l2tpipsendmsg()) make calls to sockwmalloc() that perform arithmetic on the size argument without any maximum bound. As a result, by issuing sendto() calls with very large sizes, this allocation size will wrap and result in a small buffer being allocated, leading to ugliness immediately after (probably kernel panics due to bad skbuff tail position, but possibly kernel heap corruption).
Reference: http://www.spinics.net/lists/netdev/msg145673.html
Acknowledgements:
Red Hat would like to thank Dan Rosenberg for reporting this issue.
The kgacceptkrb5 function in krb5/acceptseccontext.c in the GSS-API library in MIT Kerberos 5 (aka krb5) through 1.7.1 and 1.8 before 1.8.2, as used in kadmind and other applications, does not properly check for invalid GSS-API tokens, which allows remote authenticated users to cause a denial of service (NULL pointer dereference and daemon crash) via an AP-REQ message in which the authenticator's checksum field is missing.
Description of problem: The PKTCTRLCMDSTATUS device ioctl retrieves a pointer to a pktcdvddevice from the global pktdevs array. The index into this array is provided directly by the user and is a signed integer, so the comparison to ensure that it falls within the bounds of this array will fail when provided with a negative index.
This can be used to read arbitrary kernel memory or cause a crash due to an invalid pointer dereference. This can be exploited by users with permission to open /dev/pktcdvd/control (on many distributions, this is readable by group "cdrom").
Upstream commit: http://git.kernel.org/linus/252a52aa4fa22a668f019e55b3aac3ff71ec1c29
The init script in kbd, possibly 1.14.1 and earlier, allows local users to overwrite arbitrary files via a symlink attack on /dev/shm/defkeymap.map.
drivers/media/video/v4l2-compat-ioctl32.c in the Video4Linux (V4L) implementation in the Linux kernel before 2.6.36 on 64-bit platforms does not validate the destination of a memory copy operation, which allows local users to write to arbitrary kernel memory locations, and consequently gain privileges, via a VIDIOCSTUNER ioctl call on a /dev/video device, followed by a VIDIOCSMICROCODE ioctl call on this device.
Last updated 24 July 2024
Description of problem: gdthioctlalloc() takes the size variable as an int. copyfromuser() takes the size variable as an unsigned long. gen.datalen and gen.senselen are unsigned longs. On x8664 longs are 64 bit and ints are 32 bit.
We could pass in a very large number and the allocation would truncate the size to 32 bits and allocate a small buffer. Then when we do the copyfromuser(), it would result in a memory corruption.
Reference: http://ns3.spinics.net/lists/linux-scsi/msg47361.html
Upstream: http://git.kernel.org/linus/f63ae56e4e97fb12053590e41a4fa59e7daa74a4
XMLScanner.java in Apache Xerces2 Java, as used in Sun Java Runtime Environment (JRE) in JDK and JRE 6 before Update 15 and JDK and JRE 5.0 before Update 20, and in other products, allows remote attackers to cause a denial of service (infinite loop and application hang) via malformed XML input, as demonstrated by the Codenomicon XML fuzzing framework.
Last updated 24 July 2024