CVE-2020-12819 (GCVE-0-2020-12819)

Vulnerability from cvelistv5 – Published: 2024-12-19 07:40 – Updated: 2024-12-20 17:41
VLAI?
Summary
A heap-based buffer overflow vulnerability in the processing of Link Control Protocol messages in FortiGate versions 5.6.12, 6.0.10, 6.2.4 and 6.4.1 and earlier may allow a remote attacker with valid SSL VPN credentials to crash the SSL VPN daemon by sending a large LCP packet, when tunnel mode is enabled. Arbitrary code execution may be theoretically possible, albeit practically very difficult to achieve in this context
Severity ?
5.4 (Medium)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L/E:U/RL:X/RC:X
CWE
  • CWE-122 - Execute unauthorized code or commands
Assigner
References
Impacted products
Vendor Product Version
Fortinet FortiOS Affected: 6.4.0 , ≤ 6.4.1 (semver)
Affected: 6.2.0 , ≤ 6.2.4 (semver)
Affected: 6.0.0 , ≤ 6.0.10 (semver)
Affected: 5.6.0 , ≤ 5.6.12 (semver)
    cpe:2.3:o:fortinet:fortios:6.4.1:*:*:*:*:*:*:*
    cpe:2.3:o:fortinet:fortios:6.4.0:*:*:*:*:*:*:*
    cpe:2.3:o:fortinet:fortios:6.2.4:*:*:*:*:*:*:*
    cpe:2.3:o:fortinet:fortios:6.2.3:*:*:*:*:*:*:*
    cpe:2.3:o:fortinet:fortios:6.2.2:*:*:*:*:*:*:*
    cpe:2.3:o:fortinet:fortios:6.2.1:*:*:*:*:*:*:*
    cpe:2.3:o:fortinet:fortios:6.2.0:*:*:*:*:*:*:*
    cpe:2.3:o:fortinet:fortios:6.0.10:*:*:*:*:*:*:*
    cpe:2.3:o:fortinet:fortios:6.0.9:*:*:*:*:*:*:*
    cpe:2.3:o:fortinet:fortios:6.0.8:*:*:*:*:*:*:*
    cpe:2.3:o:fortinet:fortios:6.0.7:*:*:*:*:*:*:*
    cpe:2.3:o:fortinet:fortios:6.0.6:*:*:*:*:*:*:*
    cpe:2.3:o:fortinet:fortios:6.0.5:*:*:*:*:*:*:*
    cpe:2.3:o:fortinet:fortios:6.0.4:*:*:*:*:*:*:*
    cpe:2.3:o:fortinet:fortios:6.0.3:*:*:*:*:*:*:*
    cpe:2.3:o:fortinet:fortios:6.0.2:*:*:*:*:*:*:*
    cpe:2.3:o:fortinet:fortios:6.0.1:*:*:*:*:*:*:*
    cpe:2.3:o:fortinet:fortios:6.0.0:*:*:*:*:*:*:*
    cpe:2.3:o:fortinet:fortios:5.6.12:*:*:*:*:*:*:*
    cpe:2.3:o:fortinet:fortios:5.6.11:*:*:*:*:*:*:*
    cpe:2.3:o:fortinet:fortios:5.6.10:*:*:*:*:*:*:*
    cpe:2.3:o:fortinet:fortios:5.6.9:*:*:*:*:*:*:*
    cpe:2.3:o:fortinet:fortios:5.6.8:*:*:*:*:*:*:*
    cpe:2.3:o:fortinet:fortios:5.6.7:*:*:*:*:*:*:*
    cpe:2.3:o:fortinet:fortios:5.6.6:*:*:*:*:*:*:*
    cpe:2.3:o:fortinet:fortios:5.6.5:*:*:*:*:*:*:*
    cpe:2.3:o:fortinet:fortios:5.6.4:*:*:*:*:*:*:*
    cpe:2.3:o:fortinet:fortios:5.6.3:*:*:*:*:*:*:*
    cpe:2.3:o:fortinet:fortios:5.6.2:*:*:*:*:*:*:*
    cpe:2.3:o:fortinet:fortios:5.6.1:*:*:*:*:*:*:*
    cpe:2.3:o:fortinet:fortios:5.6.0:*:*:*:*:*:*:*
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Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.