Weakness (CWE)
CWE-415: Double Free
The product calls free() twice on the same memory address.
How to prevent it (3 mitigations)
-
Architecture and Design
Choose a language that provides automatic memory management.
-
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.
-
Implementation
Use a static analysis tool to find double free instances.
Source: MITRE CWE-415
114 results · Clear filters · Feed
-
Medium 4.5
Vim double free in src/alloc.c:616
Vim is an open source command line text editor. Vim < v9.1.0647 has double free in src/alloc.c:616. When closing a window, the corresponding tagstack data will be cleared and freed. However a bit later, the quickfix list belonging to that window will also be …
-
Medium 6.5
A double free vulnerability [CWE-415] vulnerability in Fortinet FortiOS 6.4 all versions may allow a privileged attacke…
-
Medium 4.7
Double-free vulnerability in the RSMC module Impact: Successful exploitation of this vulnerability will affect availabi…
-
Medium 4.7
Double-free vulnerability in the RSMC module Impact: Successful exploitation of this vulnerability will affect availabi…
-
Medium 4.4
nvme-fc: do not wait in vain when unloading module
In the Linux kernel, the following vulnerability has been resolved: nvme-fc: do not wait in vain when unloading module The module exit path has race between deleting all controllers and freeing 'left over IDs'. To prevent double free a synchronization between…
-
Medium 4.7
The Linux kernel io_uring IORING_OP_SOCKET operation contained a double free in function __sys_socket_file() in file ne…
-
Medium 6.7
Double Free in Data Network Stack & Connectivity
Memory corruption when IPv6 prefix timer object`s lifetime expires which are created while Netmgr daemon gets an IPv6 address.
-
Medium 5.5
Tcpreplay: tcprewrite: double free in tcpedit_dlt_cleanup() in plugins/dlt_plugins.c
Within tcpreplay's tcprewrite, a double free vulnerability has been identified in the tcpedit_dlt_cleanup() function within plugins/dlt_plugins.c. This vulnerability can be exploited by supplying a specifically crafted file to the tcprewrite binary. This flaw…
-
Medium 6.7
In rpmb , there is a possible double free due to improper locking. This could lead to local escalation of privilege wit…
-
Medium 6.7
Kernel: vmwgfx: double free within the handling of vmw_buffer_object objects
A double-free vulnerability was found in handling vmw_buffer_object objects in the vmwgfx driver in the Linux kernel. This issue occurs due to the lack of validating the existence of an object prior to performing further free operations on the object, which m…
-
Medium 6.8
Double Free in Modem
Memory Corruption in Modem due to double free while parsing the PKCS15 sim files.
-
Medium 6.5
hnswlib Double Free vulnerability
Hnswlib 0.7.0 has a double free in init_index when the M argument is a large integer.
-
Medium 6.7
Double free in Linux-Android
Memory corruption in Linux android due to double free while calling unregister provider after register call.
-
Medium 6.3
Double free in some Intel(R) Server Board BMC firmware before version 2.90 may allow a privileged user to enable inform…
-
Medium 6.0
Double free validation vulnerability in setPinPadImages in mPOS TUI trustlet prior to SMR May-2023 Release 1 allows loc…
-
Medium 6.5
An issue was discovered in libxml2 before 2.10.4. When hashing empty dict strings in a crafted XML document, xmlDictCom…
-
Medium 5.3
GPAC av_parsers.c gf_av1_reset_state double free
A vulnerability has been found in GPAC 2.3-DEV-rev35-gbbca86917-master and classified as problematic. This vulnerability affects the function gf_av1_reset_state of the file media_tools/av_parsers.c. The manipulation leads to double free. It is possible to lau…
-
Medium 4.7
In the Linux kernel before 6.1.13, there is a double free in net/mpls/af_mpls.c upon an allocation failure (for registe…
-
Medium 6.7
Use-After-Free Issue in Display
Memory corruption in display due to double free while allocating frame buffer memory
-
Medium 6.7
In audio, there is a possible memory corruption due to a logic error. This could lead to local escalation of privilege …
-
Medium 6.5
-
Medium 6.8
HiCOS’ client-side citizen digital certificate - Double Free
HiCOS’ client-side citizen certificate component has a double free vulnerability. An unauthenticated physical attacker can exploit this vulnerability to corrupt memory and execute arbitrary code, manipulate system data or terminate service.
-
Medium 5.9
Double free of buffer during string decoding in ujson
UltraJSON is a fast JSON encoder and decoder written in pure C with bindings for Python 3.7+. In versions prior to 5.4.0 an error occurring while reallocating a buffer for string decoding can cause the buffer to get freed twice. Due to how UltraJSON uses the …
-
Medium 5.5
usb_8dev_start_xmit in drivers/net/can/usb/usb_8dev.c in the Linux kernel through 5.17.1 has a double free.
-
Medium 6.6
Double Free in net/packet/af_packet.c leading to priviledge escalation
A double free bug in packet_set_ring() in net/packet/af_packet.c can be exploited by a local user through crafted syscalls to escalate privileges or deny service. We recommend upgrading kernel past the effected versions or rebuilding past ec6af094ea28f0f2dda1…
KEV Apr 11, 2022 -
Medium 4.4
An improper error handling in Mediatek RRC Protocol stack prior to SMR Oct-2021 Release 1 allows modem crash and remote…
-
Medium 6.5
Cisco Video Surveillance 7000 Series IP Cameras Link Layer Discovery Protocol Double-Free Denial of Service Vulnerability
A vulnerability in the Link Layer Discovery Protocol (LLDP) implementation for the Cisco Video Surveillance 7000 Series IP Cameras firmware could allow an unauthenticated, adjacent attacker to cause a denial of service (DoS) condition. This vulnerability is d…
-
Medium 6.5
Junos OS: EX2200-C Series, EX3200 Series, EX3300 Series, EX4200 Series, EX4500 Series, EX4550 Series, EX6210 Series, EX8208 Series, EX8216 Series: Receipt of a crafted ARP packet by an adjacent attacker will cause the sfid process to core.
A Double Free vulnerability in the software forwarding interface daemon (sfid) process of Juniper Networks Junos OS allows an adjacently-connected attacker to cause a Denial of Service (DoS) by sending a crafted ARP packet to the device. Continued receipt and…
-
Medium 5.3
insert_slice_clone can double drop if Clone panics.
An issue was discovered in the qwutils crate before 0.3.1 for Rust. When a Clone panic occurs, insert_slice_clone can perform a double drop.
-
Medium 5.5
Memory handling issues in xcb
An issue was discovered in the xcb crate through 2020-12-10 for Rust. base::Error does not have soundness. Because of the public ptr field, a use-after-free or double-free can occur.
-
Medium 5.3
Potential double-free in pulseaudio
Potential double free in Bluez 5 module of PulseAudio could allow a local attacker to leak memory or crash the program. The modargs variable may be freed twice in the fail condition in src/modules/bluetooth/module-bluez5-device.c and src/modules/bluetooth/mod…
-
Medium 6.5
Double free in cliprdr_server_receive_capabilities in FreeRDP
In FreeRDP less than or equal to 2.0.0, by providing manipulated input a malicious client can create a double free condition and crash the server. This is fixed in version 2.1.0.
-
Medium 6.5
mail() may release string with refcount==1 twice
In PHP versions 7.3.x below 7.3.13 and 7.4.0 on Windows, when supplying custom headers to mail() function, due to mistake introduced in commit 78f4b4a2dcf92ddbccea1bb95f8390a18ac3342e, if the header is supplied in lowercase, this can result in double-freeing …
-
Medium 5.5
ccsv Double Free vulnerability
The foreach function in ext/ccsv.c in Ccsv 1.1.0 allows remote attackers to cause a denial of service (double free and application crash) or possibly have unspecified other impact via a crafted file. NOTE: This has been disputed and it is argued that this is …