[SECURITY] [DLA 1700-1] uw-imap security update

2019-03-0113:26:16

lists.debian.org

150

CVSS2

8.5

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

SINGLE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

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

CVSS3

7.5

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

AI Score

8.1

Confidence

High

EPSS

0.969

Percentile

99.7%

JSON

Package : uw-imap
Version : 8:2007f~dfsg-4+deb8u1
CVE ID : CVE-2018-19518
Debian Bug : 914632

A vulnerability was discovered in uw-imap, the University of Washington
IMAP Toolkit, that might allow remote attackers to execute arbitrary OS
commands if the IMAP server name is untrusted input (e.g., entered by a
user of a web application) and if rsh has been replaced by a program
with different argument semantics.

This update disables access to IMAP mailboxes through running imapd over
rsh, and therefore ssh for users of the client application. Code which
uses the library can still enable it with tcp_parameters() after making
sure that the IMAP server name is sanitized.

For Debian 8 "Jessie", this problem has been fixed in version
8:2007f~dfsg-4+deb8u1.

We recommend that you upgrade your uw-imap packages.

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
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