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hdf5: fix CVE-2025-2309

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According to [1], A vulnerability has been found in HDF5 1.14.6 and
classified as critical. This vulnerability affects the function
H5T__bit_copy of the component Type Conversion Logic. The manipulation
leads to heap-based buffer overflow. Local access is required to approach
this attack. The exploit has been disclosed to the public and may be used.
The real existence of this vulnerability is still doubted at the moment.
The vendor plans to fix this issue in an upcoming release.

Backport patch [2] from upstream to fix CVE-2025-2309

[1] https://nvd.nist.gov/vuln/detail/CVE-2025-2309
[2] 9d90b21ef5

Signed-off-by: Libo Chen <libo.chen.cn@windriver.com>
Signed-off-by: Jinfeng Wang <jinfeng.wang.cn@windriver.com>
Signed-off-by: Anuj Mittal <anuj.mittal@oss.qualcomm.com>
This commit is contained in:
Libo Chen 2026-04-10 15:05:04 +08:00 committed by Anuj Mittal
parent 69fcb4d4b1
commit 6f240eceb0
2 changed files with 42 additions and 0 deletions
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41
meta-oe/recipes-support/hdf5/files/CVE-2025-2309.patch Normal file
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@ -0,0 +1,41 @@
From 6b24925c5fae3e2d7f47e9e7c879816673a48cd5 Mon Sep 17 00:00:00 2001
From: Libo Chen <libo.chen.cn@windriver.com>
Date: Fri, 30 Jan 2026 15:04:26 +0800
Subject: [PATCH] Fix CVE-2025-2309
A malformed file can trigger bit field type conversions that can (due to missing boundary checks in the conversion step) cause a heap buffer overflow. This PR adds a check on the defined conversion to ensure it does not read beyond the size of a single bit field element. Thus, H5T__bit_copy does not result in a buffer overflow. There are several other calls to H5T__bit_copy which might be subject to a similar issue.
This PR fixes CVE-2025-2309.
CVE: CVE-2025-2309
Upstream-Status: Backport [https://github.com/HDFGroup/hdf5/commit/9d90b21ef5c5373978014f1a711795aa653bd9a1]
Signed-off-by: Libo Chen <libo.chen.cn@windriver.com>
---
src/H5Odtype.c | 9 +++++++++
1 file changed, 9 insertions(+)
diff --git a/src/H5Odtype.c b/src/H5Odtype.c
index 24671b0..085ce24 100644
--- a/src/H5Odtype.c
+++ b/src/H5Odtype.c
@@ -307,6 +307,15 @@ H5O__dtype_decode_helper(unsigned *ioflags /*in,out*/, const uint8_t **pp, H5T_t
HGOTO_ERROR(H5E_OHDR, H5E_OVERFLOW, FAIL, "ran off end of input buffer while decoding");
UINT16DECODE(*pp, dt->shared->u.atomic.offset);
UINT16DECODE(*pp, dt->shared->u.atomic.prec);
+
+ /* Sanity checks */
+ if (dt->shared->u.atomic.offset >= (dt->shared->size * 8))
+ HGOTO_ERROR(H5E_DATATYPE, H5E_BADRANGE, FAIL, "bitfield offset out of bounds");
+ if (0 == dt->shared->u.atomic.prec)
+ HGOTO_ERROR(H5E_DATATYPE, H5E_BADVALUE, FAIL, "bitfield precision is zero");
+ if (((dt->shared->u.atomic.offset + dt->shared->u.atomic.prec) - 1) >= (dt->shared->size * 8))
+ HGOTO_ERROR(H5E_DATATYPE, H5E_BADRANGE, FAIL, "bitfield offset+precision out of bounds");
+
break;
case H5T_OPAQUE: {
--
2.34.1

1
meta-oe/recipes-support/hdf5/hdf5_1.14.4-3.bb
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@ -27,6 +27,7 @@ SRC_URI = " \
file://CVE-2025-2153.patch \
file://CVE-2025-2310.patch \
file://CVE-2025-44905.patch \
file://CVE-2025-2309.patch \
"
SRC_URI[sha256sum] = "019ac451d9e1cf89c0482ba2a06f07a46166caf23f60fea5ef3c37724a318e03"