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HistoryJun 19, 2022 - 10:39 p.m.

[SECURITY] [DLA 3052-1] cyrus-imapd security update

2022-06-1922:39:52
lists.debian.org
17
cyrus-imapd security update vulnerability

CVSS2

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

CVSS3

9.8

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

AI Score

8.4

Confidence

High

EPSS

0.005

Percentile

77.4%


Debian LTS Advisory DLA-3052-1 [email protected]
https://www.debian.org/lts/security/ Markus Koschany
June 20, 2022 https://wiki.debian.org/LTS

Package : cyrus-imapd
Version : 2.5.10-3+deb9u3
CVE ID : CVE-2019-18928 CVE-2021-33582
Debian Bug : 993433

It was discovered that the Cyrus IMAP server was prone to a denial of service
attack via input that is mishandled during hash-table interaction. Furthermore
it allowed privilege escalation because an HTTP request may be interpreted in
the authentication context of an unrelated previous request that arrived over
the same connection.

For Debian 9 stretch, these problems have been fixed in version
2.5.10-3+deb9u3.

We recommend that you upgrade your cyrus-imapd packages.

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

Further information about Debian LTS security advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://wiki.debian.org/LTS
Attachment:
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Description: This is a digitally signed message part

CVSS2

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

CVSS3

9.8

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

AI Score

8.4

Confidence

High

EPSS

0.005

Percentile

77.4%