diff options
Diffstat (limited to 'meta/recipes-core/zlib/zlib/CVE-2023-45853.patch')
-rw-r--r-- | meta/recipes-core/zlib/zlib/CVE-2023-45853.patch | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/meta/recipes-core/zlib/zlib/CVE-2023-45853.patch b/meta/recipes-core/zlib/zlib/CVE-2023-45853.patch new file mode 100644 index 0000000000..654579eb81 --- /dev/null +++ b/meta/recipes-core/zlib/zlib/CVE-2023-45853.patch | |||
@@ -0,0 +1,40 @@ | |||
1 | From 73331a6a0481067628f065ffe87bb1d8f787d10c Mon Sep 17 00:00:00 2001 | ||
2 | From: Hans Wennborg <hans@chromium.org> | ||
3 | Date: Fri, 18 Aug 2023 11:05:33 +0200 | ||
4 | Subject: [PATCH] Reject overflows of zip header fields in minizip. | ||
5 | |||
6 | This checks the lengths of the file name, extra field, and comment | ||
7 | that would be put in the zip headers, and rejects them if they are | ||
8 | too long. They are each limited to 65535 bytes in length by the zip | ||
9 | format. This also avoids possible buffer overflows if the provided | ||
10 | fields are too long. | ||
11 | |||
12 | Upstream-Status: Backport from [https://github.com/madler/zlib/commit/73331a6a0481067628f065ffe87bb1d8f787d10c] | ||
13 | CVE: CVE-2023-45853 | ||
14 | Signed-off-by: Ashish Sharma <asharma@mvista.com> | ||
15 | --- | ||
16 | contrib/minizip/zip.c | 11 +++++++++++ | ||
17 | 1 file changed, 11 insertions(+) | ||
18 | |||
19 | diff --git a/contrib/minizip/zip.c b/contrib/minizip/zip.c | ||
20 | index 3d3d4cadd..0446109b2 100644 | ||
21 | --- a/contrib/minizip/zip.c | ||
22 | +++ b/contrib/minizip/zip.c | ||
23 | @@ -1043,6 +1043,17 @@ extern int ZEXPORT zipOpenNewFileInZip4_64(zipFile file, const char* filename, c | ||
24 | return ZIP_PARAMERROR; | ||
25 | #endif | ||
26 | |||
27 | + // The filename and comment length must fit in 16 bits. | ||
28 | + if ((filename!=NULL) && (strlen(filename)>0xffff)) | ||
29 | + return ZIP_PARAMERROR; | ||
30 | + if ((comment!=NULL) && (strlen(comment)>0xffff)) | ||
31 | + return ZIP_PARAMERROR; | ||
32 | + // The extra field length must fit in 16 bits. If the member also requires | ||
33 | + // a Zip64 extra block, that will also need to fit within that 16-bit | ||
34 | + // length, but that will be checked for later. | ||
35 | + if ((size_extrafield_local>0xffff) || (size_extrafield_global>0xffff)) | ||
36 | + return ZIP_PARAMERROR; | ||
37 | + | ||
38 | zi = (zip64_internal*)file; | ||
39 | |||
40 | if (zi->in_opened_file_inzip == 1) | ||