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cve[email protected]CVE-2022-27255
HistoryAug 01, 2022 - 12:15 p.m.

CVE-2022-27255

2022-08-0112:15:08
CWE-20
web.nvd.nist.gov
110
In Wild
5
cve-2022-27255
realtek
ecos
rsdk
msdk
sip
alg
buffer overflow
remote code execution
authentication
sdp

7.5 High

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:N/AC:L/Au:N/C:P/I:P/A:P

9.8 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

9.5 High

AI Score

Confidence

High

0.077 Low

EPSS

Percentile

94.2%

In Realtek eCos RSDK 1.5.7p1 and MSDK 4.9.4p1, the SIP ALG function that rewrites SDP data has a stack-based buffer overflow. This allows an attacker to remotely execute code without authentication via a crafted SIP packet that contains malicious SDP data.

Affected configurations

NVD
Node
realtekecos_rsdkMatch-
AND
realtekecos_rsdk_firmwareMatch1.5.7p1
Node
realtekecos_msdkMatch-
AND
realtekecos_msdk_firmwareMatch4.9.4p1

Social References

More

7.5 High

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:N/AC:L/Au:N/C:P/I:P/A:P

9.8 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

9.5 High

AI Score

Confidence

High

0.077 Low

EPSS

Percentile

94.2%