Weakness (CWE)
CWE-415: Double Free
The product calls free() twice on the same memory address.
How to prevent it (3 mitigations)
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Architecture and Design
Choose a language that provides automatic memory management.
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Implementation
Ensure that each allocation is freed only once. After freeing a chunk, set the pointer to NULL to ensure the pointer cannot be freed again. In complicated error conditions, be sure that clean-up routines respect the state of allocation properly. If the language is object oriented, ensure that object destructors delete each chunk of memory only once.
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Implementation
Use a static analysis tool to find double free instances.
Source: MITRE CWE-415
14 results · Clear filters · Feed
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Low 2.1
A Double Free vulnerability [CWE-415] vulnerability in Fortinet FortiOS 7.6.0 through 7.6.8, FortiOS 7.4 all versions, …
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Low 3.7
ImageMagick 7.1.2-30 before 7.1.2-32 Use After Free in WBINFO Decoder
ImageMagick 7.1.2-30 before 7.1.2-32 contains a use after free vulnerability in the WBINFO decoder that occurs when a memory allocation fails during image decoding. Attackers can supply a crafted image that, when decoded under memory allocation failure condit…
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Low 2.3
OpenPrinting CUPS before 2.4.20 contains a double-free in printer-class management. When CUPS-Add-Modify-Class replaces…
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Low 2.4
valkey-io valkey Module Timer module.c moduleTimerHandler double free
A vulnerability was determined in valkey-io valkey 9.1.0. Impacted is the function moduleTimerHandler of the file src/module.c of the component Module Timer Subsystem. This manipulation causes double free. The attack can be initiated remotely. The exploit has…
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Low 3.3
GPAC MP4Box avc_ext.c gf_isom_nalu_sample_rewrite double free
A vulnerability was determined in GPAC up to 2.5-DEV. This vulnerability affects the function gf_isom_nalu_sample_rewrite of the file src/isomedia/avc_ext.c of the component MP4Box. This manipulation of the argument nalu_out_bs causes double free. It is possi…
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Low 3.3
Rizin: Double free in cmd_search.c
Rizin is a UNIX-like reverse engineering framework and command-line toolset. There is a double free in librz/core/cmd/cmd_search.c:byte_pattern_search() due wrong pointer ownership declared. This vulnerability is fixed by commit 045fff363b42b8a6dda8ad5229c29e…
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Low 3.7
PuTTY 0.72 before 0.84 has a double free in RSA KEX.
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Low 2.5
PoDoFo: Double-free vulnerability in compute_hash_to_sign()
PoDoFo is a C++17 PDF manipulation library. From 1.0.0 to before 1.0.4, a double-free vulnerability exists in compute_hash_to_sign() in src/podofo/private/OpenSSLInternal_Ripped.cpp. If EVP_DigestFinal fails after buf has already been freed, the Error label f…
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Low 3.3
Ffmpeg: double-free vulnerability in ffmpeg tensorflow dnn backend
A flaw was found in FFmpeg’s TensorFlow backend within the libavfilter/dnn_backend_tf.c source file. The issue occurs in the dnn_execute_model_tf() function, where a task object is freed multiple times in certain error-handling paths. This redundant memory de…
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Low 3.3
jarun nnn nnn.c run_cmd_as_plugin double free
A security vulnerability has been detected in jarun nnn up to 5.1. The impacted element is the function show_content_in_floating_window/run_cmd_as_plugin of the file nnn/src/nnn.c. The manipulation leads to double free. An attack has to be approached locally.…
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Low 3.3
HDF5 H5MM.c H5MM_realloc double free
A vulnerability has been found in HDF5 up to 1.14.6 and classified as problematic. This vulnerability affects the function H5MM_realloc of the file src/H5MM.c. The manipulation of the argument mem leads to double free. The attack needs to be approached locall…
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Low 2.1
QTS, QuTS hero
A double free vulnerability has been reported to affect several QNAP operating system versions. If exploited, the vulnerability could allow remote attackers who have gained administrator access to modify memory. We have already fixed the vulnerability in the …
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Low 2.5
The nameserver caching daemon (nscd) in the GNU C Library (aka glibc or libc6) 2.29 through 2.33, when processing a req…
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Low 2.2
Double Free in FreeRDP
In FreeRDP greater than 1.2 and before 2.0.0, a double free in update_read_cache_bitmap_v3_order crashes the client application if corrupted data from a manipulated server is parsed. This has been patched in 2.0.0.