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osvGoogleOSV:ALSA-2023:2633
HistoryMay 09, 2023 - 12:00 a.m.

Moderate: libreswan security update

2023-05-0900:00:00
Google
osv.dev
5
libreswan
ipsec
ike
linux
vpn
cve-2023-23009
security update

6.5 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

7.5 High

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

48.7%

Libreswan is an implementation of IPsec and IKE for Linux. IPsec is the Internet Protocol Security and uses strong cryptography to provide both authentication and encryption services. These services allow you to build secure tunnels through untrusted networks such as virtual private network (VPN).

Security Fix(es):

  • libreswan: remote DoS via crafted TS payload with an incorrect selector length (CVE-2023-23009)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

6.5 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

7.5 High

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

48.7%