CVE-2021-3673
A vulnerability was found in Radare2 in version 5.3.1. Improper input validation when reading a crafted LE binary can lead to resource exhaustion and DoS.
02 Description
A vulnerability was found in Radare2 in version 5.3.1. Improper input validation when reading a crafted LE binary can lead to resource exhaustion and DoS.
03 Exploitation and scoring
- Exploitation
- Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
- SSVC decision
- Not assessed by CISA
- EPSS probability
- 1.81% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 78.4% of scored records. A rank, not a probability.
- NVD base score
- 7.5 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- NVD analysis status
- Modified. NVD last modified this record on 2026-06-17.
- Red Hat severity
- No Red Hat rating. Red Hat rates the CVEs that affect its products.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2021-08-02 18:09Z5 YR AGO
- Last updated
- 2024-08-03 17:01Z2 YR AGO
- Reserved
- 2021-08-02
- Assigning CNA
- fedora
- Record state
- PUBLISHED
- Severity
- Not rated by the issuing CNA
- CNA CVSS vector
- Not published by the issuing CNA
- Weaknesses
- Data version
- 5.1
- Document digest
- 80e182a0fdb8981f6797f96f214f7f94ac53e8393d8590270b9554a126439501
05 Affected products
06 References
- bugzilla.redhat.comhttps://bugzilla.redhat.com/show_bug.cgi?id=1989130
- lists.fedoraproject.orgFEDORA-2021-c1a0dc39b4https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JIARALLVVY2362AYFSFULTZKIW6QO5R5/
- lists.fedoraproject.orgFEDORA-2021-55198e6804https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NFQPEPMLAOQNGZG5OHSPZBNONGG4DDJO/
- lists.fedoraproject.orgFEDORA-2021-d206891379https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XGOU2EFE7YK2YDRNFV6QFUWW2SL2GGQA/
- lists.fedoraproject.orgFEDORA-2022-ba3248e596https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SKGIB52R4XPCPNEW6GF56EHW7ST24IJU/
- lists.fedoraproject.orgFEDORA-2022-3fc85cd09chttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IQIRJ72UALGMSWH6MYPVJQQLXFGZ23RS/
07 Fixed in
Arch Linux
- radare2 Fixed in 5.4.0-1
Source: Arch Linux Security Tracker, the Arch Linux security team. Reformatted by exploit.cc.
Ubuntu 16.04 LTS
- radare2 No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 25.10
- radare2 No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 26.04 LTS
- radare2 No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 26.10
- radare2 No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu Pro 18.04 LTS
- radare2 No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu Pro 20.04 LTS
- radare2 No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu Pro 24.04 LTS
- radare2 No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.