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slackwareSlackware Linux ProjectSSA-2016-054-02
HistoryFeb 23, 2016 - 7:50 p.m.

[slackware-security] glibc

2016-02-2319:50:50
Slackware Linux Project
www.slackware.com
18

8.1 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

6.8 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

0.974 High

EPSS

Percentile

99.9%

New glibc packages are available for Slackware 14.1 and -current to
fix security issues.

Here are the details from the Slackware 14.1 ChangeLog:

patches/packages/glibc-2.17-i486-11_slack14.1.txz: Rebuilt.
This update provides a patch to fix the stack-based buffer overflow in
libresolv that could allow specially crafted DNS responses to seize
control of execution flow in the DNS client (CVE-2015-7547). However,
due to a patch applied to Slackware’s glibc back in 2009 (don’t use the
gethostbyname4() lookup method as it was causing some cheap routers to
misbehave), we were not vulnerable to that issue. Nevertheless it seems
prudent to patch the overflows anyway even if we’re not currently using
the code in question. Thanks to mancha for the backported patch.
For more information, see:
https://vulners.com/cve/CVE-2015-7547
(* Security fix *)
patches/packages/glibc-i18n-2.17-i486-11_slack14.1.txz: Rebuilt.
patches/packages/glibc-profile-2.17-i486-11_slack14.1.txz: Rebuilt.
patches/packages/glibc-solibs-2.17-i486-11_slack14.1.txz: Rebuilt.

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 packages for Slackware 14.1:
ftp://ftp.slackware.com/pub/slackware/slackware-14.1/patches/packages/glibc-2.17-i486-11_slack14.1.txz
ftp://ftp.slackware.com/pub/slackware/slackware-14.1/patches/packages/glibc-i18n-2.17-i486-11_slack14.1.txz
ftp://ftp.slackware.com/pub/slackware/slackware-14.1/patches/packages/glibc-profile-2.17-i486-11_slack14.1.txz
ftp://ftp.slackware.com/pub/slackware/slackware-14.1/patches/packages/glibc-solibs-2.17-i486-11_slack14.1.txz

Updated packages for Slackware x86_64 14.1:
ftp://ftp.slackware.com/pub/slackware/slackware64-14.1/patches/packages/glibc-2.17-x86_64-11_slack14.1.txz
ftp://ftp.slackware.com/pub/slackware/slackware64-14.1/patches/packages/glibc-i18n-2.17-x86_64-11_slack14.1.txz
ftp://ftp.slackware.com/pub/slackware/slackware64-14.1/patches/packages/glibc-profile-2.17-x86_64-11_slack14.1.txz
ftp://ftp.slackware.com/pub/slackware/slackware64-14.1/patches/packages/glibc-solibs-2.17-x86_64-11_slack14.1.txz

Updated packages for Slackware -current:
ftp://ftp.slackware.com/pub/slackware/slackware-current/slackware/a/glibc-solibs-2.23-i586-1.txz
ftp://ftp.slackware.com/pub/slackware/slackware-current/slackware/l/glibc-2.23-i586-1.txz
ftp://ftp.slackware.com/pub/slackware/slackware-current/slackware/l/glibc-i18n-2.23-i586-1.txz
ftp://ftp.slackware.com/pub/slackware/slackware-current/slackware/l/glibc-profile-2.23-i586-1.txz

Updated packages for Slackware x86_64 -current:
ftp://ftp.slackware.com/pub/slackware/slackware64-current/slackware64/a/glibc-solibs-2.23-x86_64-1.txz
ftp://ftp.slackware.com/pub/slackware/slackware64-current/slackware64/l/glibc-2.23-x86_64-1.txz
ftp://ftp.slackware.com/pub/slackware/slackware64-current/slackware64/l/glibc-i18n-2.23-x86_64-1.txz
ftp://ftp.slackware.com/pub/slackware/slackware64-current/slackware64/l/glibc-profile-2.23-x86_64-1.txz

MD5 signatures:

Slackware 14.1 packages:
4c56432d638adc8098661cfa818b5bc9 glibc-2.17-i486-11_slack14.1.txz
5c316d6b0a8970fe15fbdf2adff8de19 glibc-i18n-2.17-i486-11_slack14.1.txz
a937d842e5ca3d0b125230c23285f8f4 glibc-profile-2.17-i486-11_slack14.1.txz
442f01d094d350612c1fb1fcb5e7fbe7 glibc-solibs-2.17-i486-11_slack14.1.txz

Slackware x86_64 14.1 packages:
eec88d584a79909ec79aae1c43c330d3 glibc-2.17-x86_64-11_slack14.1.txz
d8b396eb6ada65d1555e3cf0fb8246c2 glibc-i18n-2.17-x86_64-11_slack14.1.txz
e7deaabfe3e467cbde10ba5b7748bbbb glibc-profile-2.17-x86_64-11_slack14.1.txz
629c93f0e510d354ff66e61f1ebe8b67 glibc-solibs-2.17-x86_64-11_slack14.1.txz

Slackware -current packages:
b11873e4f851a600b57a2e7a2ac8f472 a/glibc-solibs-2.23-i586-1.txz
5116eec63fab5e7dbc58d27fecd48684 l/glibc-2.23-i586-1.txz
ae9b8a8e4ead59aa398212d6893d7ddc l/glibc-i18n-2.23-i586-1.txz
61154e43ee4c0739dd5d3c4ce3b60ae6 l/glibc-profile-2.23-i586-1.txz

Slackware x86_64 -current packages:
c48a55c8a39dc8e17e04796e4f160bd0 a/glibc-solibs-2.23-x86_64-1.txz
36104e1a004b0e97d193c2132f18222d l/glibc-2.23-x86_64-1.txz
e0415f66d17323c8f6df339cfd49051b l/glibc-i18n-2.23-x86_64-1.txz
f5433793e9da696a60f2445559f1d33f l/glibc-profile-2.23-x86_64-1.txz

Installation instructions:

Upgrade the packages as root:
> upgradepkg glibc-*.txz

8.1 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

6.8 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

0.974 High

EPSS

Percentile

99.9%