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f9e7e2db94
This commit adds a valid git patch header for each patch, so that additional information can be stored. This is in this case and 'CVE:' tag. This can be used by CVE scanner to find out if the patch fixes a CVE. Signed-off-by: Florian Eckert <fe@dev.tdt.de>
67 lines
2.4 KiB
Diff
67 lines
2.4 KiB
Diff
From 170eddb01887e61a581ed1ac78aff05a476bbe59 Mon Sep 17 00:00:00 2001
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From: OpenWrt community <openwrt-devel@lists.openwrt.org>
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Date: Mon, 30 Oct 2023 14:37:54 +0100
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Subject: [PATCH] fix: heap-based buffer overflow in the CRC32
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verification
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https://nvd.nist.gov/vuln/detail/CVE-2014-8139
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CVE: CVE-2014-8139
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---
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extract.c | 17 ++++++++++++++---
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1 file changed, 14 insertions(+), 3 deletions(-)
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diff --git a/extract.c b/extract.c
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index 1acd769..df0fa1c 100644
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--- a/extract.c
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+++ b/extract.c
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@@ -1,5 +1,5 @@
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/*
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- Copyright (c) 1990-2009 Info-ZIP. All rights reserved.
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+ Copyright (c) 1990-2014 Info-ZIP. All rights reserved.
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See the accompanying file LICENSE, version 2009-Jan-02 or later
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(the contents of which are also included in unzip.h) for terms of use.
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@@ -298,6 +298,8 @@ char ZCONST Far TruncNTSD[] =
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#ifndef SFX
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static ZCONST char Far InconsistEFlength[] = "bad extra-field entry:\n \
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EF block length (%u bytes) exceeds remaining EF data (%u bytes)\n";
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+ static ZCONST char Far TooSmallEBlength[] = "bad extra-field entry:\n \
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+ EF block length (%u bytes) invalid (< %d)\n";
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static ZCONST char Far InvalidComprDataEAs[] =
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" invalid compressed data for EAs\n";
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# if (defined(WIN32) && defined(NTSD_EAS))
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@@ -2023,7 +2025,8 @@ static int TestExtraField(__G__ ef, ef_len)
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ebID = makeword(ef);
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ebLen = (unsigned)makeword(ef+EB_LEN);
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- if (ebLen > (ef_len - EB_HEADSIZE)) {
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+ if (ebLen > (ef_len - EB_HEADSIZE))
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+ {
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/* Discovered some extra field inconsistency! */
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if (uO.qflag)
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Info(slide, 1, ((char *)slide, "%-22s ",
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@@ -2158,11 +2161,19 @@ static int TestExtraField(__G__ ef, ef_len)
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}
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break;
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case EF_PKVMS:
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- if (makelong(ef+EB_HEADSIZE) !=
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+ if (ebLen < 4)
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+ {
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+ Info(slide, 1,
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+ ((char *)slide, LoadFarString(TooSmallEBlength),
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+ ebLen, 4));
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+ }
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+ else if (makelong(ef+EB_HEADSIZE) !=
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crc32(CRCVAL_INITIAL, ef+(EB_HEADSIZE+4),
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(extent)(ebLen-4)))
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+ {
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Info(slide, 1, ((char *)slide,
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LoadFarString(BadCRC_EAs)));
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+ }
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break;
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case EF_PKW32:
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case EF_PKUNIX:
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--
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