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slackwareSlackware Linux ProjectSSA-2018-339-02
HistoryDec 06, 2018 - 5:25 a.m.

[slackware-security] nettle

2018-12-0605:25:22
Slackware Linux Project
www.slackware.com
42

5.7 Medium

CVSS3

Attack Vector

PHYSICAL

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

HIGH

Integrity Impact

LOW

Availability Impact

NONE

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

3.3 Low

CVSS2

Access Vector

LOCAL

Access Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

NONE

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

0.001 Low

EPSS

Percentile

35.6%

New nettle packages are available for Slackware 14.2 and -current to
fix security issues.

Here are the details from the Slackware 14.2 ChangeLog:

This update fixes a security issue:
A Bleichenbacher type side-channel based padding oracle attack was found
in the way nettle handles endian conversion of RSA decrypted PKCS#1 v1.5
data. An attacker who is able to run a process on the same physical core
as the victim process, could use this flaw to extract plaintext or in some
cases downgrade any TLS connections to a vulnerable server.
For more information, see:
https://vulners.com/cve/CVE-2018-16869
(* Security fix *)

Where to find the new packages:

Thanks to the friendly folks at the OSU Open Source Lab
(http://osuosl.org) for donating FTP and rsync hosting
to the Slackware project! :-)

Also see the “Get Slack” section on http://slackware.com for
additional mirror sites near you.

Updated package for Slackware 14.2:
ftp://ftp.slackware.com/pub/slackware/slackware-14.2/patches/packages/nettle-3.4.1-i586-1_slack14.2.txz

Updated package for Slackware x86_64 14.2:
ftp://ftp.slackware.com/pub/slackware/slackware64-14.2/patches/packages/nettle-3.4.1-x86_64-1_slack14.2.txz

Updated package for Slackware -current:
ftp://ftp.slackware.com/pub/slackware/slackware-current/slackware/n/nettle-3.4.1-i586-1.txz

Updated package for Slackware x86_64 -current:
ftp://ftp.slackware.com/pub/slackware/slackware64-current/slackware64/n/nettle-3.4.1-x86_64-1.txz

MD5 signatures:

Slackware 14.2 package:
c6de13f9cee0858201167f4ea80f9e7e nettle-3.4.1-i586-1_slack14.2.txz

Slackware x86_64 14.2 package:
b5ec0a91adbae67e47b171edc8d56c07 nettle-3.4.1-x86_64-1_slack14.2.txz

Slackware -current package:
7cfd26bc36e36d31a28b9eff05db19dc n/nettle-3.4.1-i586-1.txz

Slackware x86_64 -current package:
360104d8c25975e85496f6801aedbafa n/nettle-3.4.1-x86_64-1.txz

Installation instructions:

Upgrade the package as root:
> upgradepkg nettle-3.4.1-i586-1_slack14.2.txz

5.7 Medium

CVSS3

Attack Vector

PHYSICAL

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

HIGH

Integrity Impact

LOW

Availability Impact

NONE

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

3.3 Low

CVSS2

Access Vector

LOCAL

Access Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

NONE

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

0.001 Low

EPSS

Percentile

35.6%