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slackwareSlackware Linux ProjectSSA-2022-278-01
HistoryOct 05, 2022 - 7:04 p.m.

[slackware-security] dhcp

2022-10-0519:04:05
Slackware Linux Project
www.slackware.com
11
slackware
dhcp
security fix
package upgrade
memory leak
reference count leak
cve-2022-2928
cve-2022-2929

6.5 Medium

CVSS3

Attack Vector

ADJACENT

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

0.001 Low

EPSS

Percentile

43.7%

New dhcp packages are available for Slackware 14.0, 14.1, 14.2, 15.0,
and -current to fix security issues.

Here are the details from the Slackware 15.0 ChangeLog:

patches/packages/dhcp-4.4.3_P1-i586-1_slack15.0.txz: Upgraded.
This update fixes two security issues:
Corrected a reference count leak that occurs when the server builds
responses to leasequery packets.
Corrected a memory leak that occurs when unpacking a packet that has an
FQDN option (81) that contains a label with length greater than 63 bytes.
Thanks to VictorV of Cyber Kunlun Lab for reporting these issues.
For more information, see:
https://vulners.com/cve/CVE-2022-2928
https://vulners.com/cve/CVE-2022-2929
(* 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 14.0:
ftp://ftp.slackware.com/pub/slackware/slackware-14.0/patches/packages/dhcp-4.4.3_P1-i486-1_slack14.0.txz

Updated package for Slackware x86_64 14.0:
ftp://ftp.slackware.com/pub/slackware/slackware64-14.0/patches/packages/dhcp-4.4.3_P1-x86_64-1_slack14.0.txz

Updated package for Slackware 14.1:
ftp://ftp.slackware.com/pub/slackware/slackware-14.1/patches/packages/dhcp-4.4.3_P1-i486-1_slack14.1.txz

Updated package for Slackware x86_64 14.1:
ftp://ftp.slackware.com/pub/slackware/slackware64-14.1/patches/packages/dhcp-4.4.3_P1-x86_64-1_slack14.1.txz

Updated package for Slackware 14.2:
ftp://ftp.slackware.com/pub/slackware/slackware-14.2/patches/packages/dhcp-4.4.3_P1-i586-1_slack14.2.txz

Updated package for Slackware x86_64 14.2:
ftp://ftp.slackware.com/pub/slackware/slackware64-14.2/patches/packages/dhcp-4.4.3_P1-x86_64-1_slack14.2.txz

Updated package for Slackware 15.0:
ftp://ftp.slackware.com/pub/slackware/slackware-15.0/patches/packages/dhcp-4.4.3_P1-i586-1_slack15.0.txz

Updated package for Slackware x86_64 15.0:
ftp://ftp.slackware.com/pub/slackware/slackware64-15.0/patches/packages/dhcp-4.4.3_P1-x86_64-1_slack15.0.txz

Updated package for Slackware -current:
ftp://ftp.slackware.com/pub/slackware/slackware-current/slackware/n/dhcp-4.4.3_P1-i586-1.txz

Updated package for Slackware x86_64 -current:
ftp://ftp.slackware.com/pub/slackware/slackware64-current/slackware64/n/dhcp-4.4.3_P1-x86_64-1.txz

MD5 signatures:

Slackware 14.0 package:
e429e8478fe65c0c181ccd02a053c108 dhcp-4.4.3_P1-i486-1_slack14.0.txz

Slackware x86_64 14.0 package:
048b1b6cf2e438616c13c8bb9a97f74a dhcp-4.4.3_P1-x86_64-1_slack14.0.txz

Slackware 14.1 package:
dd65809816162013a3fb513a178a7b35 dhcp-4.4.3_P1-i486-1_slack14.1.txz

Slackware x86_64 14.1 package:
db85a1949e4f6c8c6a856ab867e45394 dhcp-4.4.3_P1-x86_64-1_slack14.1.txz

Slackware 14.2 package:
9e0732a1ec9a45c091fc23111a164138 dhcp-4.4.3_P1-i586-1_slack14.2.txz

Slackware x86_64 14.2 package:
10c5b50ea804e6e139ad108943599ccd dhcp-4.4.3_P1-x86_64-1_slack14.2.txz

Slackware 15.0 package:
3c78b341d3af7b9770948ba98f6afac7 dhcp-4.4.3_P1-i586-1_slack15.0.txz

Slackware x86_64 15.0 package:
8c4e56a909641a3818d844bb504bd414 dhcp-4.4.3_P1-x86_64-1_slack15.0.txz

Slackware -current package:
df65be9af772690d503e2ad51848c7bf n/dhcp-4.4.3_P1-i586-1.txz

Slackware x86_64 -current package:
a86b84620a04c0171c6bf1de2a10c9c0 n/dhcp-4.4.3_P1-x86_64-1.txz

Installation instructions:

Upgrade the package as root:
> upgradepkg dhcp-4.4.3_P1-i586-1_slack15.0.txz

Then, restart the dhcp daemon.

6.5 Medium

CVSS3

Attack Vector

ADJACENT

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

0.001 Low

EPSS

Percentile

43.7%