This is a summary of the AI-generated 10-question deep analysis. The full version (longer answers, follow-up Q&A, related CVEs) requires login. Read the full analysis β
Q1What is this vulnerability? (Essence + Consequences)
π¨ **Essence**: Integer overflow in `nsHtml5TreeBuilder` class within Firefox's HTML5 string parser. π **Consequences**: Arbitrary code execution or Denial of Service (Use-After-Free).β¦
π‘οΈ **Root Cause**: Integer Overflow vulnerability. π **Flaw**: The HTML5 string parser fails to correctly handle end tags, leading to memory corruption. (CWE ID not provided in source data).
Q3Who is affected? (Versions/Components)
π **Affected Products**: Mozilla Firefox & Firefox ESR. π **Versions**: Firefox < 45.0 AND Firefox ESR < 38.7 (38.x series). β οΈ **Vendor**: Mozilla Foundation.
Q4What can hackers do? (Privileges/Data)
π» **Privileges**: Remote Code Execution (RCE). π **Data**: System compromise via arbitrary code execution. π« **Impact**: Denial of Service (DoS) via Use-After-Free memory corruption.
Q5Is exploitation threshold high? (Auth/Config)
π **Threshold**: LOW. π **Auth**: None required (Remote). βοΈ **Config**: Exploits improper handling of end tags in HTML5 parsing. No specific authentication or complex configuration needed.
Q6Is there a public Exp? (PoC/Wild Exploitation)
π **Public Exp?**: No specific PoC code provided in the vulnerability data. π’ **Status**: Vendor advisories exist (SUSE, Gentoo, Oracle), but no public exploit link is listed in the references.
Q7How to self-check? (Features/Scanning)
π **Self-Check**: Scan for Firefox versions < 45.0 or ESR < 38.7. π§ͺ **Feature**: Check for the `nsHtml5TreeBuilder` component in the HTML5 parser.β¦
π₯ **Urgency**: HIGH. π¨ **Priority**: Critical. RCE and DoS risks are severe. Immediate update to latest stable versions is strongly recommended to prevent remote exploitation.