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cveMitreCVE-2020-24339
HistoryDec 11, 2020 - 11:15 p.m.

CVE-2020-24339

2020-12-1123:15:14
CWE-125
mitre
web.nvd.nist.gov
45
picotcp
picotcp-ng
dns
domain name
decompression
out-of-bounds
denial of service
cve-2020-24339
nvd

CVSS2

5

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

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

CVSS3

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

AI Score

7.5

Confidence

High

EPSS

0.001

Percentile

40.3%

An issue was discovered in picoTCP and picoTCP-NG through 1.7.0. The DNS domain name record decompression functionality in pico_dns_decompress_name() in pico_dns_common.c does not validate the compression pointer offset values with respect to the actual data present in a DNS response packet, causing out-of-bounds reads that lead to Denial-of-Service.

Affected configurations

Nvd
Node
altranpicotcpRange1.7.0
OR
altranpicotcp-ngRange1.7.0
VendorProductVersionCPE
altranpicotcp*cpe:2.3:a:altran:picotcp:*:*:*:*:*:*:*:*
altranpicotcp-ng*cpe:2.3:a:altran:picotcp-ng:*:*:*:*:*:*:*:*

CVSS2

5

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

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

CVSS3

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

AI Score

7.5

Confidence

High

EPSS

0.001

Percentile

40.3%

Related for CVE-2020-24339