Vulnerability Name:

CVE-2020-12740 (CCN-181712)

Assigned:2020-05-08
Published:2020-05-08
Updated:2022-04-08
Summary:tcprewrite in Tcpreplay through 4.3.2 has a heap-based buffer over-read during a get_c operation. The issue is being triggered in the function get_ipv6_next() at common/get.c.
CVSS v3 Severity:9.1 Critical (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H)
8.0 High (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H/E:U/RL:U/RC:R)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): High
Integrity (I): None
Availibility (A): High
6.5 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L)
5.7 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L/E:U/RL:U/RC:R)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): Low
Integrity (I): None
Availibility (A): Low
CVSS v2 Severity:6.4 Medium (CVSS v2 Vector: AV:N/AC:L/Au:N/C:P/I:N/A:P)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Authentication (Au): None
Impact Metrics:Confidentiality (C): Partial
Integrity (I): None
Availibility (A): Partial
6.4 Medium (CCN CVSS v2 Vector: AV:N/AC:L/Au:N/C:P/I:N/A:P)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Athentication (Au): None
Impact Metrics:Confidentiality (C): Partial
Integrity (I): None
Availibility (A): Partial
Vulnerability Type:CWE-125
Vulnerability Consequences:Gain Access
References:Source: MITRE
Type: CNA
CVE-2020-12740

Source: XF
Type: UNKNOWN
tcpreplay-cve202012740-bo(181712)

Source: CCN
Type: Tcpreplay GIT Repository
Heap overflow in get_ipv6_next() #576

Source: MISC
Type: Exploit, Issue Tracking, Third Party Advisory
https://github.com/appneta/tcpreplay/issues/576

Source: FEDORA
Type: Mailing List, Release Notes, Third Party Advisory
FEDORA-2020-f47830961a

Source: FEDORA
Type: Mailing List, Release Notes, Third Party Advisory
FEDORA-2020-256ac53cc7

Vulnerable Configuration:Configuration 1:
  • cpe:/a:broadcom:tcpreplay:*:*:*:*:*:*:*:* (Version <= 4.3.2)

    • Configuration 2:
  • cpe:/o:fedoraproject:fedora:31:*:*:*:*:*:*:*
  • OR cpe:/o:fedoraproject:fedora:32:*:*:*:*:*:*:*

    • Configuration CCN 1:
  • cpe:/a:tcpreplay:tcpreplay:4.3.2:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    BACK
    broadcom tcpreplay *
    fedoraproject fedora 31
    fedoraproject fedora 32
    tcpreplay tcpreplay 4.3.2