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2026-06-13 20:01:35 +03:00
parent ff2cc5698b
commit 98992567a0
35 changed files with 3127 additions and 82 deletions
@@ -0,0 +1,39 @@
+From 754137e70cf58a64ad524b704a86b651ba0cde07 Mon Sep 17 00:00:00 2001
+From: Petr Stodulka <[email protected]>
+Date: Wed, 14 Dec 2016 16:30:36 +0100
+Subject: [PATCH] Fix CVE-2016-9844 (rhbz#1404283)
+
+Fixes buffer overflow in zipinfo in similar way like fix for
+CVE-2014-9913 provided by upstream.
+---
+ zipinfo.c | 14 +++++++++++++-
+ 1 file changed, 13 insertions(+), 1 deletion(-)
+
+diff --git a/zipinfo.c b/zipinfo.c
+index c03620e..accca2a 100644
+--- a/zipinfo.c
+++ b/zipinfo.c
+@@ -1984,7 +1984,19 @@ static int zi_short(__G)   /* return PK-type error code */
+         ush  dnum=(ush)((G.crec.general_purpose_bit_flag>>1) & 3);
+         methbuf[3] = dtype[dnum];
+     } else if (methnum >= NUM_METHODS) {   /* unknown */
+-        sprintf(&methbuf[1], "%03u", G.crec.compression_method);
+        /* 2016-12-05 SMS.
+         * https://launchpad.net/bugs/1643750
+         * Unexpectedly large compression methods overflow
+         * &methbuf[].  Use the old, three-digit decimal format
+         * for values which fit.  Otherwise, sacrifice the "u",
+         * and use four-digit hexadecimal.
+         */
+        if (G.crec.compression_method <= 999) {
+              sprintf( &methbuf[ 1], "%03u", G.crec.compression_method);
+        } else {
+              sprintf( &methbuf[ 0], "%04X", G.crec.compression_method);
+        }
+
+     }
+ 
+     for (k = 0;  k < 15;  ++k)
+-- 
+2.5.5
+