Weakness (CWE)
CWE-772: Missing Release of Resource after Effective Lifetime
The product does not release a resource after its effective lifetime has ended, i.e., after the resource is no longer needed.
How to prevent it (3 mitigations)
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Requirements
Use a language that does not allow this weakness to occur or provides constructs that make this weakness easier to avoid.
For example, languages such as Java, Ruby, and Lisp perform automatic garbage collection that releases memory for objects that have been deallocated.
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Implementation
It is good practice to be responsible for freeing all resources you allocate and to be consistent with how and where you free resources in a function. If you allocate resources that you intend to free upon completion of the function, you must be sure to free the resources at all exit points for that function including error conditions.
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Operation, Architecture and Design
Use resource-limiting settings provided by the operating system or environment. For example, when managing system resources in POSIX, setrlimit() can be used to set limits for certain types of resources, and getrlimit() can determine how many resources are available. However, these functions are not available on all operating systems.
When the current levels get close to the maximum that is defined for the application (see CWE-770), then limit the allocation of further resources to privileged users; alternately, begin releasing resources for less-privileged users. While this mitigation may protect the system from attack, it will not necessarily stop attackers from adversely impacting other users.
Ensure that the application performs the appropriate error checks and error handling in case resources become unavailable (CWE-703).
Source: MITRE CWE-772
157 results · Feed
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Medium 5.9
Denial of service whith ACME HTTPChallenge in Traefik
Traefik is an open source HTTP reverse proxy and load balancer. When Traefik is configured to use the `HTTPChallenge` to generate and renew the Let's Encrypt TLS certificates, the delay authorized to solve the challenge (50 seconds) can be exploited by attack…
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High 8.6
A vulnerability in the remote access VPN feature of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepowe…
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Medium 5.3
Tokens cached in the AuthenticationService are susceptible to reuse in Bunkum
Bunkum is an open-source protocol-agnostic request server for custom game servers. First, a little bit of background. So, in the beginning, Bunkum's `AuthenticationService` only supported injecting `IUser`s. However, as Refresh and SoundShapesServer implement…
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High 7.1
Uncontrolled resource consumption in Zoom SDKs before 5.14.7 may allow an unauthenticated user to enable a denial of se…
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High 7.5
WAGO: Series 750-3x/-8x prone to MODBUS server DoS
Uncontrolled resource consumption in Series WAGO 750-3x/-8x products may allow an unauthenticated remote attacker to DoS the MODBUS server with specially crafted packets.
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Medium 5.5
In the Linux kernel before 5.17.2, drivers/soc/qcom/qcom_aoss.c does not release an of_find_device_by_node reference af…
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Medium 5.9
BIG-IP HTTP profile vulnerability
In BIG-IP versions 17.0.x before 17.0.0.2, and 16.1.x beginning in 16.1.2.2 to before 16.1.3.3, when an HTTP profile is configured on a virtual server and conditions beyond the attacker’s control exist on the target pool member, undisclosed requests sent to t…
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Medium 4.7
An issue was discovered in the Linux kernel through 6.0.9. drivers/media/usb/ttusb-dec/ttusb_dec.c has a memory leak be…
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Medium 6.5
Uncontrolled Resource Consumption in Matrix Synapse
Synapse before 1.52.0 with URL preview functionality enabled will attempt to generate URL previews for media stream URLs without properly limiting connection time. Connections will only be terminated after `max_spider_size` (default: 10M) bytes have been down…
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High 7.5
Denial of service via crafted Accept-Language header in golang.org/x/text/language
An attacker may cause a denial of service by crafting an Accept-Language header which ParseAcceptLanguage will take significant time to parse.
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Unscored —
A vulnerability has been identified in CP-8000 MASTER MODULE WITH I/O -25/+70°C (All versions < CPC80 V16.30), CP-8000 …
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Medium 5.5
NVIDIA GPU Display Driver for Windows contains a vulnerability in the kernel mode layer (nvlddmkm.sys), where the memor…
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Unscored —
A flaw was found in the vhost-vsock device of QEMU. In case of error, an invalid element was not detached from the virt…
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Unscored —
A flaw was found in the virtio-net device of QEMU. This flaw was inadvertently introduced with the fix for CVE-2021-374…
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High 7.5
Uncontrolled Resource Consumption in promhttp
client_golang is the instrumentation library for Go applications in Prometheus, and the promhttp package in client_golang provides tooling around HTTP servers and clients. In client_golang prior to version 1.11.1, HTTP server is susceptible to a Denial of Ser…
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High 7.5
Junos OS: Specific packets over VXLAN cause FPC memory leak and ultimately reset
A Missing Release of Resource after Effective Lifetime vulnerability in the Packet Forwarding Engine (PFE) of Juniper Networks Junos OS allows an unauthenticated networked attacker to cause a Denial of Service (DoS) by sending specific packets over VXLAN whic…
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Medium 6.5
Junos OS: ACX5448: FPC memory leak due to IPv6 neighbor flaps
An Uncontrolled Resource Consumption vulnerability in the handling of IPv6 neighbor state change events in Juniper Networks Junos OS allows an adjacent attacker to cause a memory leak in the Flexible PIC Concentrator (FPC) of an ACX5448 router. The continuous…
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Medium 6.8
Junos OS: An attacker sending spoofed RADIUS messages to a Junos OS device configured for broadband services may cause broadband subscribers to remain stuck in a "Terminating" state.
In broadband environments, including but not limited to Enhanced Subscriber Management, (CHAP, PPP, DHCP, etc.), on Juniper Networks Junos OS devices where RADIUS servers are configured for managing subscriber access and a subscriber is logged in and then req…
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High 7.5CVE-2021-42340 EPSS 12%
DoS via memory leak with WebSocket connections
The fix for bug 63362 present in Apache Tomcat 10.1.0-M1 to 10.1.0-M5, 10.0.0-M1 to 10.0.11, 9.0.40 to 9.0.53 and 8.5.60 to 8.5.71 introduced a memory leak. The object introduced to collect metrics for HTTP upgrade connections was not released for WebSocket c…
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High 7.5
S3 storage write is not aborted on errors leading to unbounded memory usage
### Impact Anyone using storage.blob.s3 introduced in 0.5.0 with storage.imapsql. ``` storage.imapsql local_mailboxes { ... msg_store s3 { ... } } ``` ### Patches The relevant commit is pushed to master and will be included in the 0.5.1 release. No special ha…
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Medium 6.5
OpenStack Neutron Denial of Service vulnerability
An issue was discovered in the routes middleware in OpenStack Neutron before 16.4.1, 17.x before 17.2.1, and 18.x before 18.1.1. By making API requests involving nonexistent controllers, an authenticated user may cause the API worker to consume increasing amo…
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High 7.5
WAGO: Denial of Service vulnerability inside the OpenSSL implementation
Missing Release of Resource after Effective Lifetime vulnerability in OpenSSL implementation of WAGO 750-831/xxx-xxx, 750-880/xxx-xxx, 750-881, 750-889 in versions FW4 up to FW15 allows an unauthenticated attacker to cause DoS on the device.
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High 8.6
Cisco Nexus 9000 Series Fabric Switches ACI Mode Queue Wedge Denial of Service Vulnerability
A vulnerability in Cisco Nexus 9000 Series Fabric Switches in Application Centric Infrastructure (ACI) Mode could allow an unauthenticated, remote attacker to cause a queue wedge on a leaf switch, which could result in critical control plane traffic to the de…
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Medium 6.5
Dell EMC NetWorker, 19.4 or older, contain an uncontrolled resource consumption flaw in its API service. An authorized …
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High 7.5
DoS/OOM leak vulnerability in Apache Mina SSHD Server
A vulnerability in sshd-core of Apache Mina SSHD allows an attacker to overflow the server causing an OutOfMemory error. This issue affects the SFTP and port forwarding features of Apache Mina SSHD version 2.0.0 and later versions. It was addressed in Apache …
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High 7.5
Denial of Service in Phoenix Contact FL COMSERVER UNI products
In Phoenix Contact FL COMSERVER UNI in versions < 2.40 a invalid Modbus exception response can lead to a temporary denial of service.
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High 7.5
Use of uninitialized buffer in rkyv
An issue was discovered in the rkyv crate before 0.6.0 for Rust. When an archive is created via serialization, the archive content may contain uninitialized values of certain parts of a struct.
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Critical 9.8
Use after free in rio
An issue was discovered in the rio crate through 2020-05-11 for Rust. A struct can be leaked, allowing attackers to obtain sensitive information, cause a use-after-free, or cause a data race.
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Low 2.0
Various memory and file descriptor leaks in apt-python
Various memory and file descriptor leaks were found in apt-python files python/arfile.cc, python/tag.cc, python/tarfile.cc, aka GHSL-2020-170. This issue affects: python-apt 1.1.0~beta1 versions prior to 1.1.0~beta1ubuntu0.16.04.10; 1.6.5ubuntu0 versions prio…
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Unscored —
A flaw was found in libvirt, where it leaked a file descriptor for `/dev/mapper/control` into the QEMU process. This fi…
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High 7.7
Denial of Service in etcd
In etcd before versions 3.3.23 and 3.4.10, the etcd gateway is a simple TCP proxy to allow for basic service discovery and access. However, it is possible to include the gateway address as an endpoint. This results in a denial of service, since the endpoint c…
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High 7.5
xmlParseBalancedChunkMemoryRecover in parser.c in libxml2 before 2.9.10 has a memory leak related to newDoc->oldNs.
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Medium 5.3
In 389-ds-base up to version 1.4.1.2, requests are handled by workers threads. Each sockets will be waited by the worke…
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High 7.5
A flaw was found in the way civetweb frontend was handling requests for ceph RGW server with SSL enabled. An unauthenti…
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Medium 6.5
JasPer 2.0.14 has a memory leak in base/jas_malloc.c in libjasper.a when "--output-format jp2" is used.
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Medium 6.5
libpg_query memory leak
An issue was discovered in libpg_query 10-1.0.2. There is a memory leak in pg_query_raw_parse in pg_query_parse.c, which might lead to a denial of service.
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High 7.5
Missing Release of Resource after Effective Lifetime in Jenkins
A denial of service vulnerability exists in Jenkins 2.137 and earlier, 2.121.2 and earlier in BasicAuthenticationFilter.java, BasicHeaderApiTokenAuthenticator.java that allows attackers to create ephemeral in-memory user records by attempting to log in using …