* apt-pkg/pkgcache.cc:

[apt.git] / apt-pkg / pkgcache.cc

diff --git a/apt-pkg/pkgcache.cc b/apt-pkg/pkgcache.cc
index 1fd21a0ad85c7bb322187100541612e2c484e711..2b8cb6b86814f7ec3328ac31a28c3fbd586edab3 100644 (file)
--- a/apt-pkg/pkgcache.cc
+++ b/apt-pkg/pkgcache.cc
@@ -157,6 +157,9 @@ bool pkgCache::ReMap(bool const &Errorchecks)
        HeaderP->CheckSizes(DefHeader) == false)
       return _error->Error(_("The package cache file is an incompatible version"));
 
+   if (Map.Size() < HeaderP->CacheFileSize)
+      return _error->Error(_("The package cache file is corrupted, it is too small"));
+
    // Locate our VS..
    if (HeaderP->VerSysName == 0 ||
        (VS = pkgVersioningSystem::GetVS(StrP + HeaderP->VerSysName)) == 0)