CVE-2019-12802: Use After Free
First published: Thu Jun 13 2019(Updated: )
In radare2 through 3.5.1, the rcc_context function of libr/egg/egg_lang.c mishandles changing context. This allows remote attackers to cause a denial of service (application crash) or possibly have unspecified other impact (invalid memory access in r_egg_lang_parsechar; invalid free in rcc_pusharg).
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| radare2 | <=3.5.1 | |
| Fedora | =29 | |
| Fedora | =30 |
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Reference Links
- https://github.com/radare/radare2/issues/14296
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/IEXZWAMVKGZKHALV4IVWQS2ORJKRH57U/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/SX4TLTE75VYUGSPYEKMYFPUZMRDIR7O2/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SX4TLTE75VYUGSPYEKMYFPUZMRDIR7O2/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IEXZWAMVKGZKHALV4IVWQS2ORJKRH57U/
Frequently Asked Questions
What is the severity of CVE-2019-12802?
CVE-2019-12802 has been classified as a denial of service vulnerability, which can lead to application crashes.
How do I fix CVE-2019-12802?
To fix CVE-2019-12802, update to radare2 version 3.5.2 or later.
What types of systems are affected by CVE-2019-12802?
CVE-2019-12802 affects radare2 versions up to and including 3.5.1 and specific versions of Fedora 29 and 30.
Can CVE-2019-12802 be exploited remotely?
Yes, CVE-2019-12802 can be exploited by remote attackers to cause denial of service.
What symptoms indicate an exploit of CVE-2019-12802?
Symptoms of an exploit may include application crashes or unexpected exits when processing certain contexts.
- agent/type
- collector/mitre-cve
- source/MITRE
- agent/weakness
- agent/severity
- agent/remedy
- agent/references
- agent/last-modified-date
- agent/first-publish-date
- agent/description
- agent/author
- agent/event
- agent/softwarecombine
- agent/source
- agent/tags
- collector/nvd-index
- agent/software-canonical-lookup-request
- vendor/radare
- canonical/radare2
- version/radare2/3.5.1
- vendor/fedoraproject
- canonical/fedora
- version/fedora/29
- version/fedora/30