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cve[email protected]CVE-2021-22897
HistoryJun 11, 2021 - 4:15 p.m.

CVE-2021-22897

2021-06-1116:15:00
CWE-668
[email protected]
web.nvd.nist.gov
119
10
cve-2021-22897
data exposure
tls library
libcurl
transport security

5.3 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

LOW

Integrity Impact

NONE

Availability Impact

NONE

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

5.4 Medium

AI Score

Confidence

High

4.3 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

NONE

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

0.003 Low

EPSS

Percentile

68.8%

JSON

curl 7.61.0 through 7.76.1 suffers from exposure of data element to wrong session due to a mistake in the code for CURLOPT_SSL_CIPHER_LIST when libcurl is built to use the Schannel TLS library. The selected cipher set was stored in a single “static” variable in the library, which has the surprising side-effect that if an application sets up multiple concurrent transfers, the last one that sets the ciphers will accidentally control the set used by all transfers. In a worst-case scenario, this weakens transport security significantly.

CPENameOperatorVersion
haxx:curlhaxx curlle7.76.1
oracle:mysql_serveroracle mysql serverle8.0.25
oracle:essbaseoracle essbaselt21.3
oracle:essbaseoracle essbaselt11.1.2.4.047
oracle:mysql_serveroracle mysql serverle5.7.34
oracle:communications_cloud_native_core_network_slice_selection_functionoracle communications cloud native core network slice selection functioneq1.8.0
oracle:communications_cloud_native_core_network_repository_functionoracle communications cloud native core network repository functioneq1.15.0
oracle:communications_cloud_native_core_network_function_cloud_native_environmentoracle communications cloud native core network function cloud native environmenteq1.10.0
oracle:communications_cloud_native_core_service_communication_proxyoracle communications cloud native core service communication proxyeq1.15.0
oracle:communications_cloud_native_core_network_repository_functionoracle communications cloud native core network repository functioneq1.15.1
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5.3 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

LOW

Integrity Impact

NONE

Availability Impact

NONE

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

5.4 Medium

AI Score

Confidence

High

4.3 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

NONE

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

0.003 Low

EPSS

Percentile

68.8%

JSON
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