Slackware Linux update for glibc

1) Out-of-bounds write

EUVDB-ID: #VU84832

Risk: High

CVSSv4.0: 8.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2015-0235

CWE-ID: CWE-787 - Out-of-bounds write

Exploit availability: No

Description

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to heap-based buffer overflow in the __nss_hostname_digits_dots function in glibc. A remote attacker can execute arbitrary code via vectors related to the (1) gethostbyname or (2) gethostbyname2 function.

Mitigation

Update the affected package glibc.

Vulnerable software versions

Slackware Linux: 13.0 - 14.1

glibc-solibs: before 2.9

glibc-profile: before 2.9

glibc-i18n: before 2.9

glibc: before 2.9

CPE2.3

• cpe:2.3:o:slackware:slackware_linux:13.0:*:*:*:*:*:*:*
• cpe:2.3:o:slackware:slackware_linux:13.1:*:*:*:*:*:*:*
• cpe:2.3:o:slackware:slackware_linux:13.37:*:*:*:*:*:*:*
• cpe:2.3:a:slackware:glibc-solibs:*:*:*:*:*:slackware_linux:*:*
• cpe:2.3:a:slackware:glibc-profile:*:*:*:*:*:slackware_linux:*:*
• cpe:2.3:a:slackware:glibc-i18n:*:*:*:*:*:slackware_linux:*:*
• cpe:2.3:a:slackware:glibc:*:*:*:*:*:slackware_linux:*:*

External links

https://www.slackware.com/security/viewer.php?l=slackware-security&y=2015&m=slackware-security.1260924

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.