Mozilla Firefox before 2.0.0.12 and Thunderbird before 2.0.0.12 does not properly manage a delay timer used in confirmation dialogs, which might allow remote attackers to trick users into confirming an unsafe action, such as remote file execution, by using a timer to change the window focus, aka the "dialog refocus bug" or "ffclick2".

The browser engine in Mozilla Firefox before 2.0.0.12, Thunderbird before 2.0.0.12, and SeaMonkey before 1.1.8 allows remote attackers to cause a denial of service (crash) and possibly trigger memory corruption via vectors related to the (1) nsTableFrame::GetFrameAtOrBefore, (2) nsAccessibilityService::GetAccessible, (3) nsBindingManager::GetNestedInsertionPoint, (4) nsXBLPrototypeBinding::AttributeChanged, (5) nsColumnSetFrame::GetContentInsertionFrame, and (6) nsLineLayout::TrimTrailingWhiteSpaceIn methods, and other vectors.

The JavaScript engine in Mozilla Firefox before 2.0.0.12, Thunderbird before 2.0.0.12, and SeaMonkey before 1.1.8 allows remote attackers to cause a denial of service (crash) and possibly trigger memory corruption via (1) a large switch statement, (2) certain uses of watch and eval, (3) certain uses of the mousedown event listener, and other vectors.

Mozilla Firefox before 2.0.0.12, Thunderbird before 2.0.0.12, and SeaMonkey before 1.1.8 allows remote attackers to execute script outside of the sandbox and conduct cross-site scripting (XSS) attacks via multiple vectors including the XMLDocument.load function, aka "JavaScript privilege escalation bugs."

Directory traversal vulnerability in Mozilla Firefox before 2.0.0.12, Thunderbird before 2.0.0.12, and SeaMonkey before 1.1.8, when using "flat" addons, allows remote attackers to read arbitrary Javascript, image, and stylesheet files via the chrome: URI scheme, as demonstrated by stealing session information from sessionstore.js.

Multiple vulnerabilities in Mozilla Firefox before 2.0.0.8, Thunderbird before 2.0.0.8, and SeaMonkey before 1.1.5 allow remote attackers to cause a denial of service (crash) via crafted HTML that triggers memory corruption or assert errors.

Multiple vulnerabilities in the Javascript engine in Mozilla Firefox before 2.0.0.8, Thunderbird before 2.0.0.8, and SeaMonkey before 1.1.5 allow remote attackers to cause a denial of service (crash) via crafted HTML that triggers memory corruption.

Mozilla Firefox before 2.0.0.8, Thunderbird before 2.0.0.8, and SeaMonkey before 1.1.5 allows remote attackers to execute arbitrary commands via a (1) mailto, (2) nntp, (3) news, or (4) snews URI with invalid "%" encoding, related to improper file type handling on Windows XP with Internet Explorer 7 installed, a variant of CVE-2007-3845.

Integer underflow in the SSLv2 support in Mozilla Network Security Services (NSS) before 3.11.5, as used by Firefox before 1.5.0.10 and 2.x before 2.0.0.2, SeaMonkey before 1.0.8, Thunderbird before 1.5.0.10, and certain Sun Java System server products before 20070611, allows remote attackers to execute arbitrary code via a crafted SSLv2 server message containing a public key that is too short to encrypt the "Master Secret", which results in a heap-based overflow.

Stack-based buffer overflow in the SSLv2 support in Mozilla Network Security Services (NSS) before 3.11.5, as used by Firefox before 1.5.0.10 and 2.x before 2.0.0.2, Thunderbird before 1.5.0.10, SeaMonkey before 1.0.8, and certain Sun Java System server products before 20070611, allows remote attackers to execute arbitrary code via invalid "Client Master Key" length values.

Heap-based buffer overflow in the _cairo_pen_init function in Mozilla Firefox 2.x before 2.0.0.2, Thunderbird before 1.5.0.10, and SeaMonkey before 1.0.8 allows remote attackers to execute arbitrary code via a large stroke-width attribute in the clipPath element in an SVG file.

The JavaScript engine in Mozilla Firefox before 1.5.0.10 and 2.x before 2.0.0.2, Thunderbird before 1.5.0.10, and SeaMonkey before 1.0.8 allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via certain vectors that trigger memory corruption.

Multiple unspecified vulnerabilities in the layout engine for Mozilla Firefox 2.x before 2.0.0.1, 1.5.x before 1.5.0.9, Thunderbird before 1.5.0.9, and SeaMonkey before 1.0.7 allow remote attackers to cause a denial of service (memory corruption and crash) and possibly execute arbitrary code via unknown attack vectors.

The js_dtoa function in Mozilla Firefox 2.x before 2.0.0.1, 1.5.x before 1.5.0.9, Thunderbird before 1.5.0.9, and SeaMonkey before 1.0.7 overwrites memory instead of exiting when the floating point precision is reduced, which allows remote attackers to cause a denial of service via any plugins that reduce the precision.

Heap-based buffer overflow in Mozilla Firefox 2.x before 2.0.0.1, 1.5.x before 1.5.0.9, Thunderbird before 1.5.0.9, and SeaMonkey before 1.0.7 allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code by setting the CSS cursor to certain images that cause an incorrect size calculation when converting to a Windows bitmap.

Unspecified vulnerability in Mozilla Firefox 2.x before 2.0.0.1, 1.5.x before 1.5.0.9, Thunderbird before 1.5.0.9, and SeaMonkey before 1.0.7 allows remote attackers to gain privileges and install malicious code via the watch Javascript function.

Mozilla Firefox 2.x before 2.0.0.1, 1.5.x before 1.5.0.9, Thunderbird before 1.5.0.9, and SeaMonkey before 1.0.7 allows remote attackers to bypass cross-site scripting (XSS) protection by changing the src attribute of an IMG element to a javascript: URI.

Multiple heap-based buffer overflows in Mozilla Thunderbird before 1.5.0.9 and SeaMonkey before 1.0.7 allow remote attackers to execute arbitrary code via (1) external message modies with long Content-Type headers or (2) long RFC2047-encoded (MIME non-ASCII) headers.

Mozilla Thunderbird before 1.5.0.7 and SeaMonkey before 1.0.5, with "Load Images" enabled, allows remote user-assisted attackers to bypass settings that disable JavaScript via a remote XBL file in a message that is loaded when the user views, forwards, or replies to the original message.

Multiple unspecified vulnerabilities in Firefox before 1.5.0.7, Thunderbird before 1.5.0.7, and SeaMonkey before 1.0.5 allow remote attackers to cause a denial of service (crash), corrupt memory, and possibly execute arbitrary code via unspecified vectors, some of which involve JavaScript, and possibly large images or plugin data.