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CVE PROGRAM SOURCE RECORD7.5 High

CVE-2021-21005

Race Condition Vulnerability in Phoenix Contact FL SWITCH SMCS series products

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Status
Published
Published
Updated
Assigning organization
CERTVDE

Description

In Phoenix Contact FL SWITCH SMCS series products in multiple versions if an attacker sends a hand-crafted TCP-Packet with the Urgent-Flag set and the Urgent-Pointer set to 0, the network stack will crash. The device needs to be rebooted afterwards.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Phoenix Contact FL SWITCH

  • SMCS 16TX (2700996) to ≤ 4.70affected
  • SMCS 14TX/2FX (2700997) to ≤ 4.70affected
  • SMCS 14TX/2FX-SM (2701466) to ≤ 4.70affected
  • SMCS 8GT (2891123) to ≤ 4.70affected
  • SMCS 6GT/2SFP (2891479) to ≤ 4.70affected
  • SMCS 8TX-PN (2989103) to ≤ 4.70affected
  • SMCS 4TX-PN (2989093) to ≤ 4.70affected
  • SMCS 8TX (2989226) to ≤ 4.70affected
  • SMCS 6TX/2SFP (2989323) to ≤ 4.70affected
  • SMN 6TX/2POF-PN (2700290) to ≤ 4.70affected
  • SMN 8TX-PN (2989501) to ≤ 4.70affected
  • SMN 6TX/2FX (2989543) to ≤ 4.70affected
  • SMN 6TX/2FX SM (2989556) to ≤ 4.70affected

Phoenix Contact FL NAT

  • SMN 8TX (2989365) to ≤ 4.63affected
  • SMN 8TX-M (2702443) to ≤ 4.63affected

References