diff options
Diffstat (limited to 'apt-pkg')
| -rw-r--r-- | apt-pkg/deb/deblistparser.cc | 17 |
1 files changed, 12 insertions, 5 deletions
diff --git a/apt-pkg/deb/deblistparser.cc b/apt-pkg/deb/deblistparser.cc index 00e2bd900..7bef6772c 100644 --- a/apt-pkg/deb/deblistparser.cc +++ b/apt-pkg/deb/deblistparser.cc @@ -215,15 +215,22 @@ string debListParser::DescriptionLanguage() */ MD5SumValue debListParser::Description_md5() { - string value = Section.FindS("Description-md5"); - - if (value.empty()) + string const value = Section.FindS("Description-md5"); + if (value.empty() == true) { MD5Summation md5; md5.Add((Description() + "\n").c_str()); return md5.Result(); - } else - return MD5SumValue(value); + } + else if (likely(value.size() == 32)) + { + if (likely(value.find_first_not_of("0123456789abcdefABCDEF") == string::npos)) + return MD5SumValue(value); + _error->Error("Malformed Description-md5 line; includes invalid character '%s'", value.c_str()); + return MD5SumValue(); + } + _error->Error("Malformed Description-md5 line; doesn't have the required length (32 != %d) '%s'", (int)value.size(), value.c_str()); + return MD5SumValue(); } /*}}}*/ // ListParser::UsePackage - Update a package structure /*{{{*/ |