CVE-2022-20691

Published Dec 7, 2022 CVSS 3.1 · 5.3 Medium EPSS < 1% KEV · Not listed

Description

A vulnerability in the Cisco Discovery Protocol functionality of Cisco ATA 190 Series Adaptive Telephone Adapter firmware could allow an unauthenticated, adjacent attacker to cause a DoS condition of an affected device.
This vulnerability is due to missing length validation of certain Cisco Discovery Protocol packet header fields. An attacker could exploit this vulnerability by sending crafted Cisco Discovery Protocol packets to an affected device. A successful exploit could allow the attacker to cause the device to exhaust available memory and cause the service to restart.
Cisco has released firmware updates that address this vulnerability.

Affected Products

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

Cisco

Cisco Analog Telephone Adaptor (ATA) Software

affected

Version	Status	Constraints
`1.2.1`	affected	—
`1.2.2 SR1`	affected	—
`1.2.2`	affected	—
`1.2.2 SR2`	affected	—
`11.1.0 MSR4`	affected	—
`11.1.0`	affected	—
`11.1.0 MSR1`	affected	—
`11.1.0 MSR2`	affected	—
`11.1.0 MSR3`	affected	—
`1.1.0`	affected	—
`1.1.1`	affected	—
`1.1(4)`	affected	—
`1.1.2`	affected	—
`2.1(6)`	affected	—
`2.1(5)`	affected	—
`2.16(2)`	affected	—
`2.16(1)`	affected	—
`3.2(0)`	affected	—
`3.2(4)`	affected	—
`3.2(3)`	affected	—
`3.2(1)`	affected	—
`2.15`	affected	—
`2.14`	affected	—
`1.34`	affected	—
`1.0(0)`	affected	—
`3.1(1)`	affected	—
`3.1(0)`	affected	—
`3.1(2)`	affected	—
`3.0(0)`	affected	—
`9.2(3)`	affected	—
`9.2(1)`	affected	—
`9.0(3)`	affected	—
`12.0.1 SR2`	affected	—
`12.0.1`	affected	—
`12.0.1 SR1`	affected	—
`12.0.1 SR3`	affected	—
`12.0.1 SR4`	affected	—
`11.2.1`	affected	—

Configuration 1 [-]

AND

cpe:2.3:o:cisco:ata_190_firmware:-:*:*:*:on-premises:*:*:*

cpe:2.3:h:cisco:ata_190:-:*:*:*:on-premises:*:*:*

Configuration 2 [-]

AND

cpe:2.3:o:cisco:ata_191_firmware:*:*:*:*:multiplatform:*:*:*

cpe:2.3:h:cisco:ata_191:-:*:*:*:multiplatform:*:*:*

Configuration 3 [-]

AND

OR	cpe:2.3:o:cisco:ata_191_firmware:::::on-premises:::*
	cpe:2.3:o:cisco:ata_191_firmware:12.0.1:-:::on-premises:::*
	cpe:2.3:o:cisco:ata_191_firmware:12.0.1:sr1:::on-premises:::*
	cpe:2.3:o:cisco:ata_191_firmware:12.0.1:sr2:::on-premises:::*
	cpe:2.3:o:cisco:ata_191_firmware:12.0.1:sr3:::on-premises:::*
	cpe:2.3:o:cisco:ata_191_firmware:12.0.1:sr4:::on-premises:::*

cpe:2.3:h:cisco:ata_191:-:*:*:*:on-premises:*:*:*

Configuration 4 [-]

AND

cpe:2.3:o:cisco:ata_192_firmware:*:*:*:*:multiplatform:*:*:*

cpe:2.3:h:cisco:ata_192:-:*:*:*:multiplatform:*:*:*

No data.

No data available yet.

Remediation

No solution or workaround provided in the CVE record

Tracking

Advisories

Source	ID	Title
EUVD	EUVD-2022-25941	A vulnerability in the Cisco Discovery Protocol functionality of Cisco ATA 190 Series Adaptive Telephone Adapter firmware could allow an unauthenticated, adjacent attacker to cause a DoS condition of an affected device. This vulnerability is due to missing length validation of certain Cisco Discovery Protocol packet header fields. An attacker could exploit this vulnerability by sending crafted Cisco Discovery Protocol packets to an affected device. A successful exploit could allow the attacker to cause the device to exhaust available memory and cause the service to restart. Cisco has released firmware updates that address this vulnerability.