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Fix for CVE-2025-5914

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Resolves: RHEL-108810
This commit is contained in:
Lukas Javorsky 2025-08-13 07:55:36 +00:00
parent 19411133de
commit 3fe1d8e6ba
2 changed files with 48 additions and 1 deletions
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42
0004-rar-Fix-double-free-with-over-4-billion-nodes-2598.patch Normal file
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@ -0,0 +1,42 @@
From 09685126fcec664e2b8ca595e1fc371bd494d209 Mon Sep 17 00:00:00 2001
From: Tobias Stoeckmann <stoeckmann@users.noreply.github.com>
Date: Sun, 11 May 2025 02:17:19 +0200
Subject: [PATCH] rar: Fix double free with over 4 billion nodes (#2598)
If a system is capable of handling 4 billion nodes in memory, a double
free could occur because of an unsigned integer overflow leading to a
realloc call with size argument of 0. Eventually, the client will
release that memory again, triggering a double free.
Signed-off-by: Tobias Stoeckmann <tobias@stoeckmann.org>
---
libarchive/archive_read_support_format_rar.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/libarchive/archive_read_support_format_rar.c b/libarchive/archive_read_support_format_rar.c
index 542532dd..197469b9 100644
--- a/libarchive/archive_read_support_format_rar.c
+++ b/libarchive/archive_read_support_format_rar.c
@@ -335,8 +335,8 @@ struct rar
int found_first_header;
char has_endarc_header;
struct data_block_offsets *dbo;
- unsigned int cursor;
- unsigned int nodes;
+ size_t cursor;
+ size_t nodes;
char filename_must_match;
/* LZSS members */
@@ -1192,7 +1192,7 @@ archive_read_format_rar_seek_data(struct archive_read *a, int64_t offset,
int whence)
{
int64_t client_offset, ret;
- unsigned int i;
+ size_t i;
struct rar *rar = (struct rar *)(a->format->data);
if (rar->compression_method == COMPRESS_METHOD_STORE)
--
2.50.1

7
libarchive.spec
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@ -2,7 +2,7 @@
Name: libarchive
Version: 3.7.7
Release: 3%{?dist}
Release: 4%{?dist}
Summary: A library for handling streaming archive formats
# Licenses:
@ -48,6 +48,8 @@ Patch0001: 0001-Drop-rmd160-from-OpenSSL.patch
Patch0002: 0002-Handle-truncation-in-the-middle-of-a-GNU-long-linkna.patch
# Source: https://github.com/libarchive/libarchive/commit/c9bc934e7e91d302e0feca6e713ccc38d6d01532
Patch0003: 0003-Fix-CVE-2025-25724.patch
# Source: https://github.com/libarchive/libarchive/commit/09685126fcec664e2b8ca595e1fc371bd494d209
Patch0004: 0004-rar-Fix-double-free-with-over-4-billion-nodes-2598.patch
%description
Libarchive is a programming library that can create and read several different
@ -246,6 +248,9 @@ run_testsuite
%changelog
* Wed Aug 13 2025 Lukas Javorsky <ljavorsk@redhat.com> - 3.7.7-4
- Resolves: CVE-2025-5914
* Fri Jun 06 2025 Lukas Javorsky <ljavorsk@redhat.com> - 3.7.7-3
- Resolves: CVE-2025-25724