Realtek eCos RSDK/eCos MSDK SIP ALG stack-based overflow

CVSS Meta Temp Score
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CTI Interest Score
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8.5$0-$5k0.00

Summaryinfo

A vulnerability was found in Realtek eCos RSDK and eCos MSDK. It has been classified as critical. The impacted element is an unknown function of the component SIP ALG Handler. This manipulation causes stack-based overflow. The identification of this vulnerability is CVE-2022-27255. It is possible to initiate the attack remotely. There is no exploit available.

Detailsinfo

A vulnerability classified as critical was found in Realtek eCos RSDK and eCos MSDK (unknown version). Affected by this vulnerability is an unknown code block of the component SIP ALG Handler. The manipulation with an unknown input leads to a stack-based overflow vulnerability. The CWE definition for the vulnerability is CWE-121. A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function). As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

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.

The weakness was shared 08/01/2022. It is possible to read the advisory at source.android.com. This vulnerability is known as CVE-2022-27255 since 03/20/2022. The technical details are unknown and an exploit is not publicly available. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 08/29/2022).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Vendor

Name

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.5
VulDB Meta Temp Score: 8.5

VulDB Base Score: 7.3
VulDB Temp Score: 7.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 9.8
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Stack-based overflow
CWE: CWE-121 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

03/20/2022 🔍
08/01/2022 +133 days 🔍
08/01/2022 +0 days 🔍
08/29/2022 +28 days 🔍

Sourcesinfo

Advisory: source.android.com
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2022-27255 (🔍)
GCVE (CVE): GCVE-0-2022-27255
GCVE (VulDB): GCVE-100-205399

Entryinfo

Created: 08/01/2022 19:32
Updated: 08/29/2022 10:45
Changes: 08/01/2022 19:32 (38), 08/29/2022 10:45 (18)
Complete: 🔍
Cache ID: 216::103

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