PT-2015-5440 · Gnu+5 · Glibc+5

Arjun Shankar · Published 2015-04-21 · Updated 2024-06-15 · CVE-2015-1781

Positive Technologies (AI Summary)

CVSS v2.0

6.8

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions glibc versions prior to 2.22

Description The issue is related to a buffer overflow in the gethostbyname r and other unspecified NSS functions in the GNU C Library. This allows context-dependent attackers to cause a denial of service or execute arbitrary code via a crafted DNS response, which triggers a call with a misaligned buffer.

Recommendations For versions prior to 2.22, update to version 2.22 or later to resolve the issue. As a temporary workaround, consider restricting DNS responses to prevent the exploitation of the buffer overflow in the gethostbyname r function.

Exploit

Fix

DoS

Buffer Overflow

Weakness Enumeration

CWE-119

Related Identifiers

ALT-PU-2015-2084

CESA-2015_0863

CESA-2015_2199

CVE-2015-1781

DLA-230-1

DSA-3480-1

MGASA-2015-0195

OPENSUSE-SU-2024:10154-1

RHSA-2015:0863

RHSA-2015:2199

RHSA-2015:2589

RHSA-2015_0863

RHSA-2015_2199

SUSE-SU-2015:1424-1

SUSE-SU-2015:1844-1

SUSE-SU-2016:0470-1

USN-2985-1

USN-2985-2

Affected Products

Alt Linux

Centos

Red Hat

Suse

Ubuntu

Glibc

References · 314

• 🔥 https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/linux/smtp/exim_gethostbyname_bof.rb · Exploit
• 🔥 https://github.com/fjserna/CVE-2015-7547 · Exploit
• 🔥 https://github.com/aaronfay/CVE-2015-0235-test · Exploit
• 🔥 https://github.com/eSentire/cve-2015-7547-public · Exploit
• 🔥 https://github.com/jgajek/cve-2015-7547 · Exploit
• 🔥 https://github.com/makelinux/CVE-2015-0235-workaround · Exploit
• 🔥 https://github.com/cakuzo/CVE-2015-7547 · Exploit
• 🔥 https://github.com/arm13/ghost_exploit · Exploit
• 🔥 https://github.com/geekben/cve-collections/blob/master/cve20150235poc.c · Exploit
• 🔥 https://github.com/mikesplain/CVE-2015-0235-cookbook · Exploit
• 🔥 https://github.com/mholzinger/CVE-2015-0235_GHOST · Exploit
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2013-2207 · Security Note
• http://lists.opensuse.org/opensuse-security-announce/2015-08/msg00019.html · Vendor Advisory
• https://errata.altlinux.org/ALT-PU-2015-2084 · Vendor Advisory
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-7547 · Security Note