Description
NanaZip is the 7-Zip derivative intended for the modern Windows experience. Prior to 6.5.1749.0, NanaZip's WebAssembly archive handler in NanaZip.Codecs.Archive.WebAssembly.cpp allocates buffers from attacker-controlled 32-bit section and custom-name length fields without validating them against the data present in the file. A tiny crafted module can force multi-gigabyte allocations during listing or extraction through NameSize, Information.Size, and std::string or vector allocation paths, causing memory exhaustion or process termination. This issue is fixed in version 6.5.1749.0.
CVSS breakdown
CVSS 4.0
Attack Vector
Local
Attack Complexity
Low
Attack Requirements
None
Privileges Required
Low
User Interaction
Passive
Confidentiality (Vulnerable System)
None
Integrity (Vulnerable System)
None
Availability (Vulnerable System)
Low
Confidentiality (Subsequent System)
None
Integrity (Subsequent System)
None
Availability (Subsequent System)
None
Affected products
- M2Team / NanaZip< 6.5.1749.0 – < 6.5.1749.0
References
- VENDOR_ADVISORYhttps://github.com/M2Team/NanaZip/security/advisories/GHSA-qxhc-2v6p-wm8m
- PATCHhttps://github.com/M2Team/NanaZip/commit/1ce90f2d14a984476d0407a835273705607facf2
- PATCHhttps://github.com/M2Team/NanaZip/commit/56aee89037947410dd5e66f3a087e0f290484bae
- PATCHhttps://github.com/M2Team/NanaZip/commit/92b12a6e1eb0cf8e88fcc277aa7508ca1ff27db6
- PATCHhttps://github.com/M2Team/NanaZip/releases/tag/6.5.1749.0
Updated 19m ago · 8 sources