CVE-2019-19647: Null Pointer Dereference
First published: Mon Dec 09 2019(Updated: )
radare2 through 4.0.0 lacks validation of the content variable in the function r_asm_pseudo_incbin at libr/asm/asm.c, ultimately leading to an arbitrary write. This allows remote attackers to cause a denial of service (application crash) or possibly have unspecified other impact via crafted input.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Radare2 | <=4.0.0 | |
| Fedora | =30 | |
| Fedora | =31 |
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Reference Links
- https://github.com/radareorg/radare2/issues/15545
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/WRQXCOVFWZIIMAZIAAFAVQGZOS7LGHXP/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/YQTOWEDFXDTGTD6D4NHRB4FUURQSTTEN/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YQTOWEDFXDTGTD6D4NHRB4FUURQSTTEN/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WRQXCOVFWZIIMAZIAAFAVQGZOS7LGHXP/
Frequently Asked Questions
What is the severity of CVE-2019-19647?
The severity of CVE-2019-19647 is classified as high due to the potential for arbitrary write operations and denial of service.
How do I fix CVE-2019-19647?
To fix CVE-2019-19647, upgrade radare2 to version 4.0.1 or later, or apply available patches provided by the software maintainers.
Which versions of radare2 are affected by CVE-2019-19647?
CVE-2019-19647 affects radare2 versions up to and including 4.0.0.
Can CVE-2019-19647 lead to remote attacks?
Yes, CVE-2019-19647 allows remote attackers to exploit the vulnerability via crafted input, potentially causing application crashes.
What type of vulnerability is CVE-2019-19647?
CVE-2019-19647 is classified as an arbitrary write vulnerability due to insufficient validation in the affected software.
- agent/type
- collector/mitre-cve
- source/MITRE
- agent/references
- agent/author
- agent/severity
- agent/last-modified-date
- agent/weakness
- agent/description
- agent/event
- agent/first-publish-date
- agent/source
- agent/tags
- agent/softwarecombine
- collector/nvd-index
- agent/software-canonical-lookup-request
- vendor/radare
- canonical/radare2
- version/radare2/4.0.0
- vendor/fedoraproject
- canonical/fedora
- version/fedora/30
- version/fedora/31