Focus
CVE-2023-29551
HIGH
Severity by source
AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
Lifecycle Timeline
1DescriptionNVD
Memory safety bugs present in Firefox 111. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox for Android < 112, Firefox < 112, and Focus for Android < 112.
AnalysisAI
Memory safety bugs present in Firefox 111. Rated high severity (CVSS 8.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Technical ContextAI
This vulnerability is classified as Out-of-bounds Write (CWE-787), which allows attackers to write data beyond allocated buffer boundaries leading to code execution or crashes. Memory safety bugs present in Firefox 111. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox for Android < 112, Firefox < 112, and Focus for Android < 112. Affected products include: Mozilla Firefox, Mozilla Focus.
RemediationAI
No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Validate write boundaries, use memory-safe languages, enable compiler protections (ASLR, stack canaries).
Firefox did not properly handle downloads of files ending in <code>.desktop</code>, which can be interpreted to run atta
When handling the filename directive in the Content-Disposition header, the filename would be truncated if the filename
Memory safety bugs present in Firefox 111 and Firefox ESR 102.9. Rated high severity (CVSS 8.8), this vulnerability is r
An attacker could cause the memory manager to incorrectly free a pointer that addresses attacker-controlled memory, resu
An attacker could have caused memory corruption and a potentially exploitable use-after-free of a pointer in a global ob
Multiple race conditions in the font initialization could have led to memory corruption and execution of attacker-contro
Universal cross-site scripting (UXSS) in Mozilla Focus and Klar for iOS allows remote attackers to inject script into th
Following a Garbage Collector compaction, weak maps may have been accessed before they were correctly traced. Rated medi
A wrong lowering instruction in the ARM64 Ion compiler resulted in a wrong optimization result. Rated medium severity (C
If multiple instances of resource exhaustion occurred at the incorrect time, the garbage collector could have caused mem
Under certain circumstances, a call to the <code>bind</code> function may have resulted in the incorrect realm. Rated me
When a secure cookie existed in the Firefox cookie jar an insecure cookie for the same domain could have been created, w
Same weakness CWE-787 – Out-of-bounds Write
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External POC / Exploit Code
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