Vulnerability Name:

CVE-2020-25577 (CCN-198975)

Assigned:2020-12-01
Published:2020-12-01
Updated:2021-06-03
Summary:In FreeBSD 12.2-STABLE before r368250, 11.4-STABLE before r368253, 12.2-RELEASE before p1, 12.1-RELEASE before p11 and 11.4-RELEASE before p5 rtsold(8) does not verify that the RDNSS option does not extend past the end of the received packet before processing its contents. While the kernel currently ignores such malformed packets, it passes them to userspace programs. Any programs expecting the kernel to do validation may be vulnerable to an overflow.
CVSS v3 Severity:9.8 Critical (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)
8.5 High (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C)
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): High
Availibility (A): High
9.8 Critical (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)
8.5 High (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C)
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): High
Availibility (A): High
CVSS v2 Severity:10.0 High (CVSS v2 Vector: AV:N/AC:L/Au:N/C:C/I:C/A:C)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Authentication (Au): None
Impact Metrics:Confidentiality (C): Complete
Integrity (I): Complete
Availibility (A): Complete
10.0 High (CCN CVSS v2 Vector: AV:N/AC:L/Au:N/C:C/I:C/A:C)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Athentication (Au): None
Impact Metrics:Confidentiality (C): Complete
Integrity (I): Complete
Availibility (A): Complete
Vulnerability Type:CWE-120
Vulnerability Consequences:Gain Access
References:Source: MITRE
Type: CNA
CVE-2020-25577

Source: XF
Type: UNKNOWN
freebsd-cve202025577-bo(198975)

Source: MISC
Type: Vendor Advisory
https://security.FreeBSD.org/advisories/FreeBSD-SA-20:32.rtsold.asc

Source: CONFIRM
Type: Third Party Advisory
https://security.netapp.com/advisory/ntap-20210423-0001/

Source: CCN
Type: FreeBSD Security Advisory FreeBSD-SA-20:32.rtsold
Multiple vulnerabilities in rtsold

Source: CCN
Type: WhiteSource Vulnerability Database
CVE-2020-25577

Vulnerable Configuration:Configuration 1:
  • cpe:/o:freebsd:freebsd:11.4:-:*:*:*:*:*:*
  • OR cpe:/o:freebsd:freebsd:11.4:p1:*:*:*:*:*:*
  • OR cpe:/o:freebsd:freebsd:11.4:p2:*:*:*:*:*:*
  • OR cpe:/o:freebsd:freebsd:11.4:p3:*:*:*:*:*:*
  • OR cpe:/o:freebsd:freebsd:12.1:-:*:*:*:*:*:*
  • OR cpe:/o:freebsd:freebsd:12.1:p1:*:*:*:*:*:*
  • OR cpe:/o:freebsd:freebsd:12.1:p2:*:*:*:*:*:*
  • OR cpe:/o:freebsd:freebsd:12.1:p3:*:*:*:*:*:*
  • OR cpe:/o:freebsd:freebsd:12.1:p4:*:*:*:*:*:*
  • OR cpe:/o:freebsd:freebsd:12.1:p5:*:*:*:*:*:*
  • OR cpe:/o:freebsd:freebsd:12.1:p6:*:*:*:*:*:*
  • OR cpe:/o:freebsd:freebsd:12.1:p7:*:*:*:*:*:*
  • OR cpe:/o:freebsd:freebsd:12.1:p9:*:*:*:*:*:*
  • OR cpe:/o:freebsd:freebsd:12.1:p8:*:*:*:*:*:*
  • OR cpe:/o:freebsd:freebsd:12.2:-:*:*:*:*:*:*

    • Configuration CCN 1:
  • cpe:/o:freebsd:freebsd:12.1:release:*:*:*:*:*:*
  • OR cpe:/o:freebsd:freebsd:11.4:stable:*:*:*:*:*:*
  • OR cpe:/o:freebsd:freebsd:11.4:release:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    BACK
    freebsd freebsd 11.4 -
    freebsd freebsd 11.4 p1
    freebsd freebsd 11.4 p2
    freebsd freebsd 11.4 p3
    freebsd freebsd 12.1 -
    freebsd freebsd 12.1 p1
    freebsd freebsd 12.1 p2
    freebsd freebsd 12.1 p3
    freebsd freebsd 12.1 p4
    freebsd freebsd 12.1 p5
    freebsd freebsd 12.1 p6
    freebsd freebsd 12.1 p7
    freebsd freebsd 12.1 p9
    freebsd freebsd 12.1 p8
    freebsd freebsd 12.2 -
    freebsd freebsd 12.1 release
    freebsd freebsd 11.4 stable
    freebsd freebsd 11.4 release