The eglibc package before 2.14 incorrectly handled the getaddrinfo() function. An attacker could use this issue to cause a denial of service.
Moodle has a database activity export permission issue where the export function of the database activity module exports all entries even those from groups the user does not belong to
The TLS stack in Mono before 3.12.1 allows man-in-the-middle attackers to conduct message skipping attacks and consequently impersonate clients by leveraging missing handshake state validation, aka a "SMACK SKIP-TLS" issue.
lighttpd before 1.4.33 does not check the return value of the (1) setuid, (2) setgid, or (3) setgroups functions, which might cause lighttpd to run as root if it is restarted and allows remote attackers to gain privileges, as demonstrated by multiple calls to the clone function that cause setuid to fail when the user process limit is reached.
lighttpd before 1.4.34, when SNI is enabled, configures weak SSL ciphers, which makes it easier for remote attackers to hijack sessions by inserting packets into the client-server data stream or obtain sensitive information by sniffing the network.
Heap-based buffer overflow in the fcgidheaderbucketread function in fcgidbucket.c in the modfcgid module before 2.3.9 for the Apache HTTP Server allows remote attackers to have an unspecified impact via unknown vectors.
It was reported that the XML files parser of ModSecurity, a security module for the Apache HTTP Server, was vulnerable to XML External Entity attacks. A remote attacker could provide a specially-crafted XML file that, when processed might lead to local files disclosure or, potentially, excessive resources (memory, CPU) consumption.
References: [1] https://bugs.gentoo.org/showbug.cgi?id=464188 [2] https://secunia.com/advisories/52847/ [3] https://github.com/SpiderLabs/ModSecurity/blob/master/CHANGES
Relevant upstream patch: [4] https://github.com/SpiderLabs/ModSecurity/commit/d4d80b38aa85eccb26e3c61b04d16e8ca5de76fe
activesupport/coreext/hash/conversions.rb in Ruby on Rails before 2.3.15, 3.0.x before 3.0.19, 3.1.x before 3.1.10, and 3.2.x before 3.2.11 does not properly restrict casts of string values, which allows remote attackers to conduct object-injection attacks and execute arbitrary code, or cause a denial of service (memory and CPU consumption) involving nested XML entity references, by leveraging Action Pack support for (1) YAML type conversion or (2) Symbol type conversion.
Unspecified vulnerability in the MySQL Server component in Oracle MySQL 5.1.64 and earlier, and 5.5.26 and earlier, allows remote attackers to affect confidentiality, integrity, and availability via unknown vectors related to Protocol.
ISC DHCP 4.1.x before 4.1-ESV-R7 and 4.2.x before 4.2.4-P2 allows remote attackers to cause a denial of service (daemon crash) in opportunistic circumstances by establishing an IPv6 lease in an environment where the lease expiration time is later reduced.
Multiple integer overflows in (1) magick/profile.c or (2) magick/property.c in ImageMagick 6.7.5 and earlier allow remote attackers to cause a denial of service (memory corruption) and possibly execute arbitrary code via crafted offset value in the ResolutionUnit tag in the EXIF IFD0 of an image. NOTE: this vulnerability exists because of an incomplete fix for CVE-2012-0247.
Use-after-free vulnerability in Dropbear SSH Server 0.52 through 2012.54, when command restriction and public key authentication are enabled, allows remote authenticated users to execute arbitrary code and bypass command restrictions via multiple crafted command requests, related to "channels concurrency."
ImageMagick 6.7.5-7 and earlier allows remote attackers to cause a denial of service (memory corruption) and possibly execute arbitrary code via crafted offset and count values in the ResolutionUnit tag in the EXIF IFD0 of an image.
A type conversion flaw leading to an out-of-bounds heap buffer read was found in the way libpng, a library of functions for manipulation PNG image format files, performed expansion of certain iCCP, iTXt, and zTXt PNG image file chunks.
A remote attacker could provide a specially-crafted Portable Network Graphics (PNG) image file, which once opened in an application, linked against libpng, could lead to denial of service or in some cases, execution of arbitrary code with permission of the user running such an application.
Upstream patch: http://libpng.git.sourceforge.net/git/gitweb.cgi?p=libpng/libpng;a=commitdiff;h=a8c319a2b281af68f7ca0e2f9a28ca57b44ceb2b#patch3
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.
Heap-based buffer overflow in the Vorbis decoder in Google Chrome before 15.0.874.120 allows remote attackers to cause a denial of service or possibly have unspecified other impact via a crafted stream.
Double free vulnerability in the Theora decoder in Google Chrome before 15.0.874.120 allows remote attackers to cause a denial of service or possibly have unspecified other impact via a crafted stream.
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
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.
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.
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.
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
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 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/
Use-after-free vulnerability in the HTMLCollection implementation in Google Chrome before 10.0.648.204 allows remote attackers to cause a denial of service or possibly have unspecified other impact via unknown vectors.
Use-after-free vulnerability in the frame-loader implementation in Google Chrome before 10.0.648.204 allows remote attackers to cause a denial of service or possibly have unspecified other impact via unknown vectors.
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.
Google Chrome before 9.0.597.94 does not properly perform event handling for animations, which allows remote attackers to cause a denial of service or possibly have unspecified other impact via unknown vectors that lead to a "stale pointer."
Google Chrome before 9.0.597.94 does not properly perform process termination upon memory exhaustion, which has unspecified impact and remote attack vectors.