From 7d79339f811aeebacb3f841bac6075fdfbadd03f Mon Sep 17 00:00:00 2001
From: Julian Andres Klode <jak@debian.org>
Date: Wed, 20 Jul 2011 16:38:40 +0200
Subject: * apt-pkg/pkgcache.cc:   - Check that cache is at least CacheFileSize
 bytes large (LP: #16467)

---
 apt-pkg/pkgcache.cc | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'apt-pkg/pkgcache.cc')

diff --git a/apt-pkg/pkgcache.cc b/apt-pkg/pkgcache.cc
index 1fd21a0ad..2b8cb6b86 100644
--- 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)
-- 
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