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debianDebianDEBIAN:DSA-5368-1:80C4F
HistoryMar 03, 2023 - 7:58 p.m.

[SECURITY] [DSA 5368-1] libreswan security update

2023-03-0319:58:43
lists.debian.org
9
libreswan
cve-2023-23009
debian bullseye
ipsec
denial of service

CVSS3

6.5

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

AI Score

6.5

Confidence

High

EPSS

0.002

Percentile

53.6%


Debian Security Advisory DSA-5368-1 [email protected]
https://www.debian.org/security/ Salvatore Bonaccorso
March 03, 2023 https://www.debian.org/security/faq


Package : libreswan
CVE ID : CVE-2023-23009
Debian Bug : 1031821

It was discovered that the libreswan IPsec implementation could be
forced into a crash/restart via malformed IKEv2 packets after peer
authentication, resulting in denial of service.

For the stable distribution (bullseye), this problem has been fixed in
version 4.3-1+deb11u3.

We recommend that you upgrade your libreswan packages.

For the detailed security status of libreswan please refer to its
security tracker page at:
https://security-tracker.debian.org/tracker/libreswan

Further information about Debian Security Advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://www.debian.org/security/

Mailing list: [email protected]

CVSS3

6.5

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

AI Score

6.5

Confidence

High

EPSS

0.002

Percentile

53.6%