Vulnerability Name:

CVE-2019-12802 (CCN-162643)

Assigned:2019-06-13
Published:2019-06-13
Updated:2022-04-18
Summary: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).
CVSS v3 Severity:7.8 High (CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H)
6.8 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): Required
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): High
Integrity (I): High
Availibility (A): High
3.3 Low (CCN CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L)
2.9 Low (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): Required
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Low
CVSS v2 Severity:6.8 Medium (CVSS v2 Vector: AV:N/AC:M/Au:N/C:P/I:P/A:P)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Medium
Authentication (Au): None
Impact Metrics:Confidentiality (C): Partial
Integrity (I): Partial
Availibility (A): Partial
1.7 Low (CCN CVSS v2 Vector: AV:L/AC:L/Au:S/C:N/I:N/A:P)
Exploitability Metrics:Access Vector (AV): Local
Access Complexity (AC): Low
Athentication (Au): Single_Instance
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Partial
Vulnerability Type:CWE-416
Vulnerability Consequences:Denial of Service
References:Source: MITRE
Type: CNA
CVE-2019-12802

Source: XF
Type: UNKNOWN
radare2-cve201912802-dos(162643)

Source: CCN
Type: radare2 GIT Repository
Ragg2 Lacks Boundary Check when Changing Context #14296

Source: MISC
Type: Exploit, Patch, Third Party Advisory
https://github.com/radare/radare2/issues/14296

Source: FEDORA
Type: Mailing List, Third Party Advisory
FEDORA-2019-2a16e1ab93

Source: FEDORA
Type: Mailing List, Third Party Advisory
FEDORA-2019-e612286002

Vulnerable Configuration:Configuration 1:
  • cpe:/a:radare:radare2:*:*:*:*:*:*:*:* (Version <= 3.5.1)

    • Configuration 2:
  • cpe:/o:fedoraproject:fedora:29:*:*:*:*:*:*:*
  • OR cpe:/o:fedoraproject:fedora:30:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    Oval Definitions
    Definition IDClassTitleLast Modified
    oval:com.ubuntu.bionic:def:2019128020000000
    V
    		CVE-2019-12802 on Ubuntu 18.04 LTS (bionic) - medium.
    2019-06-13
    oval:com.ubuntu.cosmic:def:2019128020000000
    V
    		CVE-2019-12802 on Ubuntu 18.10 (cosmic) - medium.
    2019-06-13
    oval:com.ubuntu.xenial:def:2019128020000000
    V
    		CVE-2019-12802 on Ubuntu 16.04 LTS (xenial) - medium.
    2019-06-13
    oval:com.ubuntu.disco:def:2019128020000000
    V
    		CVE-2019-12802 on Ubuntu 19.04 (disco) - medium.
    2019-06-13
    BACK
    radare radare2 *
    fedoraproject fedora 29
    fedoraproject fedora 30