What’s New in AV Engine 5.355
New features
- Support for opening ACE, ISO, and CRX compression formats. l New Content Disarm and Reconstruction (CDR) feature. l Script checksum support for HTML files.
- Support for hidden zlib files in Object Linking and Embedding (OLE) content. l New scan timeout control framework.
Enhancements
- Content Pattern Recognition Language (CPRL) signature runtime performance improvements. l Win32 emulator optimization. l APK and ZIP decompression optimization. l Accelerated checksum calculation.
- File typing supports more file types including Dotnet, CHM, Mach-O, DMG and XAR, and RTF. l Script file typing improvements.
AV Engine for FortiOS and FortiAP-S Release Notes 5
Fortinet Technologies Inc.
Fortinet Product Support Product Integration and Support
Product Integration and Support
Fortinet Product Support
The following table lists AV engine product integration and support information:
| FortiOS | 5.4.0 and later
5.6.0 and later |
| FortiAP-S | 5.4.0 and later
5.6.0 and later |
6 AV Engine for FortiOS and FortiAP-S Release Notes
Fortinet Technologies Inc.
Resolved Issues AV engine
Resolved Issues
The resolved issues listed below do not list every bug that has been corrected with this release. For inquires about a particular bug, please contact Customer Service & Support.
AV engine
| Bug ID | Description |
| 453487 | Add support for gzip files with flag’s reserved bits set |
| 453982 | Apply more signatures on RTF files. |
| 413069 | Fixed a crash in the JS emulator. |
| 421545 | Fixed a signature loading failure bug on FortiOS SOC3 platforms. |
| Fixed potential memory issues found by fuzzing in GZIP, CAB and HTML parsing. | |
| 413625 | Fixed Win32Emulator performance down bug. |
| Fixed memory leaks and overflows in pyarch, sis, and rar decompression. | |
| Fixed potential memory bugs in autoit, arj and aspack decompression. | |
| 440519 | Flag UPX as archive bomb if the decompressed size is 100 times greater than original file size. |
| Fixed AV engine X86_64 crash on Windows 10 build 1703. |
FortiOS
| Bug ID | Description |
| 467820 | Fixed missing file names for RAR v5.0. |
| 458192 | MSI and KGB file types are now on the list to be sent to FortiSandbox as potentially suspicious files. |