Use-after-free vulnerability in the nsOverflowContinuationTracker::Finish function in Mozilla Firefox before 19.0, Firefox ESR 17.x before 17.0.3, Thunderbird before 17.0.3, Thunderbird ESR 17.x before 17.0.3, and SeaMonkey before 2.16 allows remote attackers to execute arbitrary code or cause a denial of service (heap memory corruption) via a crafted document that uses Cascading Style Sheets (CSS) -moz-column- properties.
Use-after-free vulnerability in the nsImageLoadingContent::OnStopContainer function in Mozilla Firefox before 19.0, Firefox ESR 17.x before 17.0.3, Thunderbird before 17.0.3, Thunderbird ESR 17.x before 17.0.3, and SeaMonkey before 2.16 allows remote attackers to execute arbitrary code via crafted web script.
Heap-based buffer overflow in the nsSaveAsCharset::DoCharsetConversion function in Mozilla Firefox before 19.0, Firefox ESR 17.x before 17.0.3, Thunderbird before 17.0.3, Thunderbird ESR 17.x before 17.0.3, and SeaMonkey before 2.16 allows remote attackers to execute arbitrary code via unspecified vectors.
Multiple unspecified vulnerabilities in the browser engine in Mozilla Firefox before 19.0, Firefox ESR 17.x before 17.0.3, Thunderbird before 17.0.3, Thunderbird ESR 17.x before 17.0.3, and SeaMonkey before 2.16 allow remote attackers to cause a denial of service (memory corruption and application crash) or possibly execute arbitrary code via unknown vectors.
Mozilla Firefox before 19.0, Firefox ESR 17.x before 17.0.3, Thunderbird before 17.0.3, Thunderbird ESR 17.x before 17.0.3, and SeaMonkey before 2.16 allow man-in-the-middle attackers to spoof the address bar by operating a proxy server that provides a 407 HTTP status code accompanied by web script, as demonstrated by a phishing attack on an HTTPS site.
A security flaw was found in the way rhn-migrate-classic-to-rhsm tool of subscription-manager, a suite of tools and libraries for subscription and repository management, performed migration of system profiles, registered with Red Hat Network Classic to Customer Portal Subscription Management (certificate of Red Hat Network Classic server was not verified for validity). A rogue server could use this flaw to conduct man-in-the-middle (MiTM) attacks, possibly leading to their ability to obtain user credentials, that would be used for authentication of that particular user at Red Hat Network Classic server before the system profile(s) migration.
This issue was found by Florian Weimer of Red Hat Product Security Team.
The RasterImage::DrawFrameTo function in Mozilla Firefox before 19.0, Thunderbird before 17.0.3, and SeaMonkey before 2.16 allows remote attackers to obtain sensitive information from process memory or cause a denial of service (out-of-bounds read and application crash) via a crafted GIF image.