Common Weakness Enumeration
CWE-416
AllowedUse After Free
Abstraction: Variant · Status: Stable
The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.
9814 vulnerabilities reference this CWE, most recent first.
CVE-2021-3518 (GCVE-0-2021-3518)
Vulnerability from cvelistv5 – Published: 2021-05-18 11:20 – Updated: 2024-08-03 17:01
VLAI
EPSS
VEX
Summary
There's a flaw in libxml2 in versions before 2.9.11. An attacker who is able to submit a crafted file to be processed by an application linked with libxml2 could trigger a use-after-free. The greatest impact from this flaw is to confidentiality, integrity, and availability.
Severity
No CVSS data available.
CWE
Assigner
References
19 references
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CVE-2021-3516 (GCVE-0-2021-3516)
Vulnerability from cvelistv5 – Published: 2021-06-01 13:38 – Updated: 2024-08-03 16:53
VLAI
EPSS
VEX
Summary
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Severity
No CVSS data available.
CWE
Assigner
References
9 references
| URL | Tags |
|---|---|
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| https://bugzilla.redhat.com/show_bug.cgi?id=1954225 | x_refsource_MISC |
| https://lists.fedoraproject.org/archives/list/pac… | vendor-advisoryx_refsource_FEDORA |
| https://security.gentoo.org/glsa/202107-05 | vendor-advisoryx_refsource_GENTOO |
| https://www.oracle.com/security-alerts/cpujan2022.html | x_refsource_MISC |
| https://gitlab.gnome.org/GNOME/libxml2/-/issues/230 | x_refsource_MISC |
| https://gitlab.gnome.org/GNOME/libxml2/-/commit/1… | x_refsource_MISC |
| https://security.netapp.com/advisory/ntap-2021071… | x_refsource_CONFIRM |
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CVE-2021-3497 (GCVE-0-2021-3497)
Vulnerability from cvelistv5 – Published: 2021-04-19 20:22 – Updated: 2024-08-03 16:53
VLAI
EPSS
VEX
Summary
GStreamer before 1.18.4 might access already-freed memory in error code paths when demuxing certain malformed Matroska files.
Severity
No CVSS data available.
CWE
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://bugzilla.redhat.com/show_bug.cgi?id=1945339 | x_refsource_MISC |
| https://gstreamer.freedesktop.org/security/sa-202… | x_refsource_MISC |
| https://www.debian.org/security/2021/dsa-4900 | vendor-advisoryx_refsource_DEBIAN |
| https://lists.debian.org/debian-lts-announce/2021… | mailing-listx_refsource_MLIST |
| https://security.gentoo.org/glsa/202208-31 | vendor-advisoryx_refsource_GENTOO |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| n/a | gstreamer-plugins-good |
Affected:
gstreamer-plugins-good 1.18.4
|
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CVE-2021-3483 (GCVE-0-2021-3483)
Vulnerability from cvelistv5 – Published: 2021-05-17 11:25 – Updated: 2024-08-03 16:53
VLAI
EPSS
VEX
Summary
A flaw was found in the Nosy driver in the Linux kernel. This issue allows a device to be inserted twice into a doubly-linked list, leading to a use-after-free when one of these devices is removed. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability. Versions before kernel 5.12-rc6 are affected
Severity
No CVSS data available.
CWE
Assigner
References
5 references
| URL | Tags |
|---|---|
| http://www.openwall.com/lists/oss-security/2021/04/07/1 | mailing-listx_refsource_MLIST |
| https://bugzilla.redhat.com/show_bug.cgi?id=1948045 | x_refsource_MISC |
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| https://lists.debian.org/debian-lts-announce/2021… | mailing-listx_refsource_MLIST |
| https://security.netapp.com/advisory/ntap-2021062… | x_refsource_CONFIRM |
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CVE-2021-3455 (GCVE-0-2021-3455)
Vulnerability from cvelistv5 – Published: 2021-10-19 22:25 – Updated: 2024-09-16 18:38
VLAI
EPSS
VEX
Title
Disconnecting L2CAP channel right after invalid ATT request leads freeze
Summary
Disconnecting L2CAP channel right after invalid ATT request leads freeze. Zephyr versions >= 2.4.0, >= 2.5.0 contain Use After Free (CWE-416). For more information, see https://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-7g38-3x9v-v7vp
Severity
4.3 (Medium)
CWE
- CWE-416 - Use After Free (CWE-416)
Assigner
References
1 reference
| URL | Tags |
|---|---|
| http://github.com/zephyrproject-rtos/zephyr/secur… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| zephyrproject-rtos | zephyr |
Affected:
2.4.0 , < unspecified
(custom)
Affected: 2.5.0 , < unspecified (custom) |
Date Public
2021-06-19 00:00
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CVE-2021-3403 (GCVE-0-2021-3403)
Vulnerability from cvelistv5 – Published: 2021-03-04 21:10 – Updated: 2024-08-03 16:53
VLAI
EPSS
VEX
Summary
In ytnef 1.9.3, the TNEFSubjectHandler function in lib/ytnef.c allows remote attackers to cause a denial-of-service (and potentially code execution) due to a double free which can be triggered via a crafted file.
Severity
No CVSS data available.
CWE
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://bugzilla.redhat.com/show_bug.cgi?id=1926967 | x_refsource_MISC |
| https://github.com/Yeraze/ytnef/issues/85 | x_refsource_MISC |
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CVE-2021-3392 (GCVE-0-2021-3392)
Vulnerability from cvelistv5 – Published: 2021-03-23 19:07 – Updated: 2024-08-03 16:53
VLAI
EPSS
VEX
Summary
A use-after-free flaw was found in the MegaRAID emulator of QEMU. This issue occurs while processing SCSI I/O requests in the case of an error mptsas_free_request() that does not dequeue the request object 'req' from a pending requests queue. This flaw allows a privileged guest user to crash the QEMU process on the host, resulting in a denial of service. Versions between 2.10.0 and 5.2.0 are potentially affected.
Severity
No CVSS data available.
CWE
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://bugzilla.redhat.com/show_bug.cgi?id=1924042 | x_refsource_MISC |
| https://bugs.launchpad.net/qemu/+bug/1914236 | x_refsource_MISC |
| https://lists.debian.org/debian-lts-announce/2021… | mailing-listx_refsource_MLIST |
| https://security.netapp.com/advisory/ntap-2021050… | x_refsource_CONFIRM |
| https://lists.debian.org/debian-lts-announce/2022… | mailing-listx_refsource_MLIST |
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CVE-2021-0270 (GCVE-0-2021-0270)
Vulnerability from cvelistv5 – Published: 2021-04-22 19:37 – Updated: 2024-09-16 19:04
VLAI
EPSS
VEX
Title
Junos OS: PTX Series, QFX10K Series: A PTX/QFX FPC may restart unexpectedly with the "inline-Jflow" feature enabled on a large-scale deployment
Summary
On PTX Series and QFX10k Series devices with the "inline-jflow" feature enabled, a use after free weakness in the Packet Forwarding Engine (PFE) microkernel architecture of Juniper Networks Junos OS may allow an attacker to cause a Denial of Service (DoS) condition whereby one or more Flexible PIC Concentrators (FPCs) may restart. As this is a race condition situation this issue become more likely to be hit when network instability occurs, such as but not limited to BGP/IGP reconvergences, and/or further likely to occur when more active "traffic flows" are occurring through the device. When this issue occurs, it will cause one or more FPCs to restart unexpectedly. During FPC restarts core files will be generated. While the core file is generated traffic will be disrupted. Sustained receipt of large traffic flows and reconvergence-like situations may sustain the Denial of Service (DoS) situation. This issue affects: Juniper Networks Junos OS: 18.1 version 18.1R2 and later versions prior to 18.1R3-S10 on PTX Series, QFX10K Series.
Severity
7.5 (High)
CWE
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://kb.juniper.net/JSA11161 | x_refsource_MISC |
| https://www.juniper.net/documentation/en_US/junos… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Juniper Networks | Junos OS |
Affected:
18.1R2 , < 18.1*
(custom)
|
Date Public
2021-04-14 00:00
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CVE-2021-0262 (GCVE-0-2021-0262)
Vulnerability from cvelistv5 – Published: 2021-04-22 19:37 – Updated: 2024-09-17 00:51
VLAI
EPSS
VEX
Title
Junos OS: QFX10002-60C: Use after free vulnerability found during static code analysis
Summary
Through routine static code analysis of the Juniper Networks Junos OS software codebase, the Secure Development Life Cycle team identified a Use After Free vulnerability in PFE packet processing on the QFX10002-60C switching platform. Exploitation of this vulnerability may allow a logically adjacent attacker to trigger a Denial of Service (DoS). Continued exploitation of this vulnerability will sustain the Denial of Service (DoS) condition. This issue only affects QFX10002-60C devices. No other product or platform is vulnerable to this issue. This issue affects Juniper Networks Junos OS on QFX10002-60C: 19.1 version 19.1R3-S1 and later versions; 19.1 versions prior to 19.1R3-S3; 19.2 version 19.2R2 and later versions; 19.2 versions prior to 19.2R3-S1; 20.2 versions prior to 20.2R1-S2. This issue does not affect Juniper Networks Junos OS: versions prior to 19.1R3; 19.2 versions prior to 19.2R2; any version of 19.3; version 20.2R2 and later releases.
Severity
6.5 (Medium)
CWE
- CWE-416 - Use After Free
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://kb.juniper.net/JSA11153 | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Juniper Networks | Junos OS |
Unaffected:
unspecified , < 19.1R3
(custom)
Unaffected: 19.3 Unaffected: 20.2R2 , < unspecified (custom) Affected: 19.1R3-S1 , < 19.1* (custom) Unaffected: 19.2 , < 19.2R2 (custom) Affected: 20.2 , < 20.2R1-S2 (custom) |
Date Public
2021-04-14 00:00
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CVE-2020-36329 (GCVE-0-2020-36329)
Vulnerability from cvelistv5 – Published: 2021-05-21 16:15 – Updated: 2024-08-04 17:23
VLAI
EPSS
VEX
Summary
A flaw was found in libwebp in versions before 1.0.1. A use-after-free was found due to a thread being killed too early. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.
Severity
No CVSS data available.
CWE
Assigner
References
7 references
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| https://support.apple.com/kb/HT212601 | x_refsource_CONFIRM |
| http://seclists.org/fulldisclosure/2021/Jul/54 | mailing-listx_refsource_FULLDISC |
| https://security.netapp.com/advisory/ntap-2021111… | x_refsource_CONFIRM |
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"name": "20210723 APPLE-SA-2021-07-21-1 iOS 14.7 and iPadOS 14.7",
"refsource": "FULLDISC",
"url": "http://seclists.org/fulldisclosure/2021/Jul/54"
},
{
"name": "https://security.netapp.com/advisory/ntap-20211112-0001/",
"refsource": "CONFIRM",
"url": "https://security.netapp.com/advisory/ntap-20211112-0001/"
}
]
}
}
}
},
"cveMetadata": {
"assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
"assignerShortName": "redhat",
"cveId": "CVE-2020-36329",
"datePublished": "2021-05-21T16:15:10.000Z",
"dateReserved": "2021-05-04T00:00:00.000Z",
"dateUpdated": "2024-08-04T17:23:10.443Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.1"
}
Mitigation
Architecture and Design
Strategy: Language Selection
Choose a language that provides automatic memory management.
Mitigation
Implementation
Strategy: Attack Surface Reduction
When freeing pointers, be sure to set them to NULL once they are freed. However, the utilization of multiple or complex data structures may lower the usefulness of this strategy.
No CAPEC attack patterns related to this CWE.