Advisories

Aug 2011
Jul 2011

Out-of-bounds Read

The png_format_buffer function in pngerror.c in libpng allows remote attackers to cause a denial of service (application crash) via a crafted PNG image that triggers an out-of-bounds read during the copying of error-message data. NOTE: this vulnerability exists because of a CVE-2004-0421 regression. NOTE: this is called an off-by-one error by some sources.

NULL Pointer Dereference

The png_err function in pngerror.c in libpng makes a function call using a NULL pointer argument instead of an empty-string argument, which allows remote attackers to cause a denial of service (application crash) via a crafted PNG image.

Jun 2011
May 2011
Feb 2011

Improper Input Validation

The deliver function in the sendmail delivery agent (lib/mail/network/delivery_methods/sendmail.rb) in Ruby Mail gem allows remote attackers to execute arbitrary commands via shell metacharacters in an e-mail address.

Jan 2011

Improper Restriction of Operations within the Bounds of a Memory Buffer

pngrtran.c in libpng allows remote attackers to cause a denial of service (application crash) or possibly execute arbitrary code via a crafted palette-based PNG image that triggers a buffer overflow, related to the png_do_expand_palette function, the png_do_rgb_to_gray function, and an integer underflow. NOTE: some of these details are obtained from third party information.

Dec 2010

Double Free

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

Nov 2010

Exposure of Sensitive Information to an Unauthorized Actor

Spree exchanges data using JavaScript Object Notation (JSON) without a mechanism for validating requests, which allows remote attackers to obtain sensitive information via vectors involving (1) admin/products.json, (2) admin/users.json, or (3) admin/overview/get_report_data, related to a "JSON hijacking" issue.

Cross-site Scripting

Multiple cross-site scripting (XSS) vulnerabilities in HTML Purifier allow remote attackers to inject arbitrary web script or HTML via a crafted (1) background-image, (2) background, or (3) font-family Cascading Style Sheets (CSS) property, a different vulnerability than CVE-2010-2479.

Oct 2010
Aug 2010

XWork ParameterInterceptors bypass allows remote command execution

The OGNL extensive expression evaluation capability in this package as used in Atlassian Fisheye, Crucible, and possibly other products, uses a permissive allowlist, which allows remote attackers to modify server-side context objects and bypass the "#" protection mechanism in ParameterInterceptors via the #context, #_memberAccess, #root, #this, #_typeResolver, #_classResolver, #_traceEvaluations, #_lastEvaluation, #_keepLastEvaluation, and possibly other OGNL context variables, a different vulnerability than CVE-2008-6504.

Weak password hash generation

The password hash generation algorithm in this package performs a transformation that reduces the size of the set of inputs to SHA-1, which produces a small search space that makes it easier for local and possibly remote attackers to crack passwords by generating hash collisions, related to password substitution.

Jul 2010
Jun 2010
Apr 2010
Mar 2010

Uncontrolled Resource Consumption

The png_decompress_chunk function in pngrutil.c in libpng does not properly handle compressed ancillary-chunk data that has a disproportionately large uncompressed representation, which allows remote attackers to cause a denial of service (memory and CPU consumption, and application hang) via a crafted PNG file, as demonstrated by use of the deflate compression method on data composed of many occurrences of the same character, related to a "decompression bomb" attack.

Feb 2010

Bug reduced the entropy of hashed passwords containing non US-ASCII characters

This package suffered from a bug related to character encoding that substantially reduced the entropy of hashed passwords containing non US-ASCII characters. An incorrect encoding step transparently replaced such characters by '?' prior to hashing. In the worst case of a password consisting solely of non-US-ASCII characters, this would cause its hash to be equivalent to all other such passwords of the same length. This issue only affects the JRuby …

Jan 2010
Dec 2009

Fails to do proper certificate validation

A security problem involving peer certificate verification was found where failed verification silently did nothing, making affected applications vulnerable to attackers. Attackers could lead a client application to believe that a secure connection to a rogue SSL server is legitimate. Attackers could also penetrate client-validated SSL server applications with a dummy certificate.

Aug 2009
Jul 2009
Apr 2009
Mar 2009
Feb 2009
Jan 2009
Oct 2008
Aug 2008

Remote code execution and potential Denial of Service Vulnerability

Activeresource contains a format string flaw in the request function of lib/active_resource/connection.rb. The issue is triggered as format string specifiers (e.g. %s and %x) are not properly sanitized in user-supplied input when passed via the result.code and result.message variables. This may allow a remote attacker to cause a denial of service or potentially execute arbitrary code.

Nov 2007

Use of Externally-Controlled Format String

Format string vulnerability in the mdiag_initialize function in gtk/src/rbgtkmessagedialog.c in Ruby-GNOME 2 (aka Ruby/Gnome2), and SVN, allows context-dependent attackers to execute arbitrary code via format string specifiers in the message parameter.

Jun 2007

Private Method Exposure

This package contains a flaw in the handling of tag names. The issue is triggered when the program reads tag names from XML data and then calls a method with that name. With a specially crafted file, a context-dependent attacker can call private methods and manipulate data.

May 2007

Data Handling Stack Buffer Overflow

This package contains an overflow condition that is triggered as user-supplied input is not properly validated when handling specially crafted data. This may allow a remote attacker to cause a stack-based buffer overflow, resulting in a denial of service or potentially allowing the execution of arbitrary code.

Jan 2007

Uncontrolled Resource Consumption

The extract_files function in installer.rb in RubyGems does not check whether files exist before overwriting them, which allows user-assisted remote attackers to overwrite arbitrary files, cause a denial of service, or execute arbitrary code via crafted GEM packages.

Jan 1970

liquidjs may leak properties of a prototype

The package liquidjs before 10.0.0 is vulnerable to Information Exposure when ownPropertyOnly parameter is set to False, which results in leaking properties of a prototype. Workaround For versions 9.34.0 and higher, an option to disable this functionality is provided.