Public-Mirror/GARbro-mirror
1
0
Fork 0
mirror of https://github.com/crskycode/GARbro.git synced 2024-11-27 07:34:00 +08:00
Code Issues Projects Releases Wiki Activity

(ArcOpener.TryOpen): additional count sanity check.

Browse Source
This commit is contained in:
morkt 2015-09-20 05:40:37 +04:00
parent ae900e22ea
commit 9371221b19
1 changed files with 4 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
ArcFormats/RPM/ArcARC.cs
View File

@ -81,10 +81,13 @@ namespace GameRes.Formats.Rpm
set { KnownSchemes = ((ArcScheme)value).KnownSchemes; } set { KnownSchemes = ((ArcScheme)value).KnownSchemes; }
} }
/// <summary>Minimum entry length across all possible archive schemes.</summary>
const int MinEntryLength = 0x24;
public override ArcFile TryOpen (ArcView file) public override ArcFile TryOpen (ArcView file)
{ {
int count = file.View.ReadInt32 (0); int count = file.View.ReadInt32 (0);
if (!IsSaneCount (count)) if (!IsSaneCount (count) || 8 + count * MinEntryLength >= file.MaxOffset)
return null; return null;
uint is_compressed = file.View.ReadUInt32 (4); uint is_compressed = file.View.ReadUInt32 (4);
if (is_compressed > 1) // should be either 0 or 1 if (is_compressed > 1) // should be either 0 or 1