Common Vulnerabilities and Exposures assigned an identifier CVE-2008-7220 to the following vulnerability:
Unspecified vulnerability in Prototype JavaScript framework (prototypejs) before 1.6.0.2 allows attackers to make "cross-site ajax requests" via unknown vectors.
References: ------------ http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-7220 http://github.com/sstephenson/prototype/blob/master/CHANGELOG http://osvdb.org/46312
Upstream patch: --------------- git clone git://github.com/sstephenson/prototype.git git show 02cc9992e915c024650ddc77a91064f7a4252914
The relevant file in WordPress source rpm package (F10) is: ------------------------------------------------------------ BUILD/wordpress/wp-includes/js/prototype.js
cupsd in CUPS 1.3.9 and earlier allows local users, and possibly remote attackers, to cause a denial of service (daemon crash) by adding a large number of RSS Subscriptions, which triggers a NULL pointer dereference. NOTE: this issue can be triggered remotely by leveraging CVE-2008-5184.
Created attachment 320281 [details] Proposed actualized upstream qemu patch to resolve the Cirrus LGD-54XX "bitblt" heap overflow (CVE-2007-1320)
Jan Niehusmann discovered that the upstream fix for the CVE-2007-1320 is incomplete and still allows local users to cause a heap-based buffer overlow, when connecting via the VNC console.
Steps to reproduce:
No reproducer.
Upstream qemu patch for the initial CVE-2007-1320 issue: https://svn.pardus.org.tr/pardus/2007/applications/emulators/qemu/files/CVE-2007-1320.patch
Proposed upstream correction of this patch - see attachment.
Multiple buffer overflows in yaSSL 1.7.5 and earlier, as used in MySQL and possibly other products, allow remote attackers to execute arbitrary code via (1) the ProcessOldClientHello function in handshake.cpp or (2) "inputbuffer& operator>>" in yasslimp.cpp.
Description of problem: This was disclosed at 26c3.
Fabian also mentioned the fix for CVE-2009-1389 regarding the r8169 driver introduces a similar security problem as this: http://git.kernel.org/linus/fdd7b4c3302c93f6833e338903ea77245eb510b4
- RTLW16(RxMaxSize, 16383); + RTLW16(RxMaxSize, rxbufsz);
is actually a revert of this: http://git.kernel.org/linus/126fa4b9ca5d9d7cb7d46f779ad3bd3631ca387c
- / For gigabit rtl8169, MTU + header + CRC + VLAN / - RTLW16(RxMaxSize, tp->rxbufsz); + / Low hurts. Let's disable the filtering. / + RTLW16(RxMaxSize, 16383);
The accompanying comment for the original commit (126fa):
The size of the incoming frame is not correctly checked.
The RxMaxSize register (0xDA) does not work as expected and incoming frames whose size exceeds the MTU actually end spanning multiple descriptors. The first Rx descriptor contains the size of the whole frame (or some garbage in its place). The driver does not expect something above the space allocated to the current skb and crashes loudly when it issues a skbput.
The fix contains two parts: - disable hardware Rx size filtering: so far it only proved to be able to trigger some new fancy errors; [...]
warned of issues when using hardware Rx size filtering and Fabian claimed to be able to trigger something similar to the e1000 bug when using a specific packet size.
References: http://events.ccc.de/congress/2009/Fahrplan//events/3596.en.html http://blog.c22.cc/2009/12/27/26c3-cat-procsysnetipv4fuckups/ http://twitter.com/dakami/statuses/7104238406 https://bugzilla.redhat.com/CVE-2009-1389 http://www.securityfocus.com/bid/37521
Description of problem: This was disclosed at 26c3.
Fabian mentioned that CVE-2009-1385 has an incorrect fix. The fix he points to is http://git.kernel.org/linus/ea30e11970a96cfe5e32c03a29332554573b4a10
Which fixes a DoS when the frame spans multiple buffers and the last buffer contains less than four bytes. However, if that last fragment is longer than 4 bytes, it will actually be taken into account while the previous fragments will have been ignored. This means we can end up in a situation where a single Ethernet frame has multiple interpretation since at some level it will be considered as a whole and in others the N first bytes will be silently discarded.
References: http://events.ccc.de/congress/2009/Fahrplan//events/3596.en.html http://blog.c22.cc/2009/12/27/26c3-cat-procsysnetipv4fuckups/ http://twitter.com/dakami/statuses/7104238406 https://bugzilla.redhat.com/CVE-2009-1385 http://www.securityfocus.com/bid/37519
Common Vulnerabilities and Exposures assigned an identifier CVE-2009-4484 to the following vulnerability:
Buffer overflow in the server in MySQL 5.0.51a on Linux allows remote attackers to execute arbitrary code via crafted data to TCP port 3306, as demonstrated by the vdmysql5 module in VulnDisco Pack Professional 8.11. NOTE: as of 20100106, this disclosure has no actionable information. However, because the VulnDisco Pack author is a reliable researcher, the issue is being assigned a CVE identifier for tracking purposes.
References: http://intevydis.blogspot.com/2010/01/jan-4-2010-mysql-exploit-demo.html http://intevydis.com/vd-list.shtml http://isc.sans.org/diary.html?storyid=7900 http://www.securityfocus.com/bid/37640
More details about the issue may be disclosed in about 2 weeks: http://intevydis.blogspot.com/2010/01/jan-72010-0day-awareness.html
The pollmodeio file for the megaraidsas driver in the Linux kernel 2.6.31.6 and earlier has world-writable permissions, which allows local users to change the I/O mode of the driver by modifying this file.
Use-after-free vulnerability in the abstract file-descriptor handling interface in the cupsdDoSelect function in scheduler/select.c in the scheduler in cupsd in CUPS 1.3.7 and 1.3.10 allows remote attackers to cause a denial of service (daemon crash or hang) via a client disconnection during listing of a large number of print jobs, related to improperly maintaining a reference count. NOTE: some of these details are obtained from third party information.
Buffer underflow in src/http/ngxhttpparse.c in nginx 0.1.0 through 0.5.37, 0.6.x before 0.6.39, 0.7.x before 0.7.62, and 0.8.x before 0.8.15 allows remote attackers to execute arbitrary code via crafted HTTP requests.
libclamav/untar.c in ClamAV before 0.95 allows remote attackers to cause a denial of service (infinite loop) via a crafted TAR file that causes (1) clamd and (2) clamscan to hang.
Multiple integer overflows in FreeType 2.3.9 and earlier allow remote attackers to execute arbitrary code via vectors related to large values in certain inputs in (1) smooth/ftsmooth.c, (2) sfnt/ttcmap.c, and (3) cff/cffload.c.
Anibal Sacco from Core Security Technologies discovered a NULL pointer dereference flaw in CUPS daemon when handling the IPPTAGUNSUPPORTED, which allows remote attackers with access to CUPS' IPP port to crash cupsd.
Acknowledgements:
Red Hat would like to thank Anibal Sacco from Core Security Technologies for reporting this issue.
Use-after-free vulnerability in kbx/keybox-blob.c in GPGSM in GnuPG 2.x through 2.0.16 allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via a certificate with a large number of Subject Alternate Names, which is not properly handled in a realloc operation when importing the certificate or verifying its signature.
Buffer overflow in the SMB1 packet chaining implementation in the chainreply function in process.c in smbd in Samba 3.0.x before 3.3.13 allows remote attackers to cause a denial of service (memory corruption and daemon crash) or possibly execute arbitrary code via a crafted field in a packet.
drbd8 allows local users to bypass intended restrictions for certain actions via netlink packets, similar to CVE-2009-3725.
Directory traversal vulnerability in libtransmission/metainfo.c in Transmission 1.22, 1.34, 1.75, and 1.76 allows remote attackers to overwrite arbitrary files via a .. (dot dot) in a pathname within a .torrent file.
Heap-based buffer overflow in libxml2, as used in Google Chrome before 16.0.912.75, allows remote attackers to cause a denial of service or possibly have unspecified other impact via unknown vectors.
Double free vulnerability in libxml2, as used in Google Chrome before 13.0.782.215, allows remote attackers to cause a denial of service or possibly have unspecified other impact via a crafted XPath expression.
It was found that the perl Fast CGI module did not properly clean up certain environment variables, related to a particular HTTP request, between subsequent incoming requests. Any environment variable set in the first pass through the code by processing the first request, that wasn't set in some subsequent request, has been added to the hash containing environment variables for that subsequent request. A remote attacker could use this flaw to bypass the authentication process and obtain access to resources, which would be otherwise protected by authentication.
References: [1] http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=607479
The server in ISC DHCP 3.x and 4.x before 4.2.2, 3.1-ESV before 3.1-ESV-R3, and 4.1-ESV before 4.1-ESV-R3 allows remote attackers to cause a denial of service (daemon exit) via a crafted DHCP packet.
SQL injection vulnerability in mysql/mysql-auth.pl in the modauthnzexternal module 3.2.5 and earlier for the Apache HTTP Server allows remote attackers to execute arbitrary SQL commands via the user field.
Buffer overflow in libpng 1.0.x before 1.0.55, 1.2.x before 1.2.45, 1.4.x before 1.4.8, and 1.5.x before 1.5.4, when used by an application that calls the pngrgbtogray function but not the pngsetexpand function, allows remote attackers to overwrite memory with an arbitrary amount of data, and possibly have unspecified other impact, via a crafted PNG image.
It was found that libpng read uninitialized memory when it encountered a sCAL chunk that is empty, and improperly handles a sCAL chunk that lacks the terminating zero between the two strings that it conveys.
This was 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=61a2d8a2a7b03023e63eae9a3e64607aaaa6d339
The server in ISC DHCP 3.x and 4.x before 4.2.2, 3.1-ESV before 3.1-ESV-R3, and 4.1-ESV before 4.1-ESV-R3 allows remote attackers to cause a denial of service (daemon exit) via a crafted BOOTP packet.
It was found that vsftpd, Very Secure FTP daemon, when the network namespace (CONFIGNETNS) support was activated in the kernel, used to create a new network namespace per connection. A remote attacker could use this flaw to cause memory pressure (kernel OOM killer protection mechanism to be activated and potentially terminate vsftpd or arbitrary [vsftpd independent] process, which satisfied the OOM killer process selection algorithm).
References: [1] http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=629373 [2] https://bugs.launchpad.net/ubuntu/+source/linux/+bug/720095
Public PoC (from [2]): ======================
The test is started in this way:
$ for i in 1 2 3 4 5 6 7 8 ; do ./feedftp $i >/dev/null & done
What is observed during the test is that /proc/vmallocinfo grows continually with lines like the following being added:
0xffffe8ffff800000-0xffffe8ffffa00000 2097152 pcpugetvmareas+0x0/0x790 vmalloc 0xffffe8ffffa00000-0xffffe8ffffc00000 2097152 pcpugetvmareas+0x0/0x790 vmalloc 0xffffe8ffffc00000-0xffffe8ffffe00000 2097152 pcpugetvmareas+0x0/0x790 vmalloc
vsftpd bug: https://bugzilla.redhat.com/showbug.cgi?id=711134
Proposed patches (but has connection rates problem): http://patchwork.ozlabs.org/patch/88217/
dhclient in ISC DHCP 3.0.x through 4.2.x before 4.2.1-P1, 3.1-ESV before 3.1-ESV-R1, and 4.1-ESV before 4.1-ESV-R2 allows remote attackers to execute arbitrary commands via shell metacharacters in a hostname obtained from a DHCP message, as demonstrated by a hostname that is provided to dhclient-script.