Репозиторий Sisyphus
Последнее обновление: 1 октября 2023 | Пакетов: 18631 | Посещений: 37745178
en ru br
Репозитории ALT
S:6.0-alt5
5.1: 6.0-alt2
4.1: 5.52-alt5
4.0: 5.52-alt4.M40
+updates:5.52-alt4.M40
3.0: 5.52-alt1
www.altlinux.org/Changes

Группа :: Архивирование/Сжатие
Пакет: unzip

 Главная   Изменения   Спек   Патчи   Sources   Загрузить   Gear   Bugs and FR  Repocop 

Патч: unzip-6.0-cve-2014-8140.patch
Скачать


diff --git a/extract.c b/extract.c
index c741b5f..e4a4c7b 100644
--- a/extract.c
+++ b/extract.c
@@ -2240,10 +2240,17 @@ static int test_compr_eb(__G__ eb, eb_size, compr_offset, test_uc_ebdata)
     if (compr_offset < 4)                /* field is not compressed: */
         return PK_OK;                    /* do nothing and signal OK */
 
+    /* Return no/bad-data error status if any problem is found:
+     *    1. eb_size is too small to hold the uncompressed size
+     *       (eb_ucsize).  (Else extract eb_ucsize.)
+     *    2. eb_ucsize is zero (invalid).  2014-12-04 SMS.
+     *    3. eb_ucsize is positive, but eb_size is too small to hold
+     *       the compressed data header.
+     */
     if ((eb_size < (EB_UCSIZE_P + 4)) ||
-        ((eb_ucsize = makelong(eb+(EB_HEADSIZE+EB_UCSIZE_P))) > 0L &&
-         eb_size <= (compr_offset + EB_CMPRHEADLEN)))
-        return IZ_EF_TRUNC;               /* no compressed data! */
+     ((eb_ucsize = makelong( eb+ (EB_HEADSIZE+ EB_UCSIZE_P))) == 0L) ||
+     ((eb_ucsize > 0L) && (eb_size <= (compr_offset + EB_CMPRHEADLEN))))
+        return IZ_EF_TRUNC;             /* no/bad compressed data! */
 
     method = makeword(eb + (EB_HEADSIZE + compr_offset));
     if ((method == STORED) && (eb_size != compr_offset + EB_CMPRHEADLEN + eb_ucsize))
 
дизайн и разработка: Vladimir Lettiev aka crux © 2004-2005, Andrew Avramenko aka liks © 2007-2008
текущий майнтейнер: Michael Shigorin