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Virtuozzo 7 : glibc / glibc-common / glibc-devel / glibc-headers / etc (VZLSA-2017-1481)

high Nessus Plugin ID 101482

Synopsis

The remote Virtuozzo host is missing a security update.

Description

An update for glibc is now available for Red Hat Enterprise Linux 7.

Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

The glibc packages provide the standard C libraries (libc), POSIX thread libraries (libpthread), standard math libraries (libm), and the name service cache daemon (nscd) used by multiple programs on the system. Without these libraries, the Linux system cannot function correctly.

Security Fix(es) :

* A flaw was found in the way memory was being allocated on the stack for user space binaries. If heap (or different memory region) and stack memory regions were adjacent to each other, an attacker could use this flaw to jump over the stack guard gap, cause controlled memory corruption on process stack or the adjacent memory region, and thus increase their privileges on the system. This is glibc-side mitigation which blocks processing of LD_LIBRARY_PATH for programs running in secure-execution mode and reduces the number of allocations performed by the processing of LD_AUDIT, LD_PRELOAD, and LD_HWCAP_MASK, making successful exploitation of this issue more difficult. (CVE-2017-1000366)

Red Hat would like to thank Qualys Research Labs for reporting this issue.

Note that Tenable Network Security has attempted to extract the preceding description block directly from the corresponding Red Hat security advisory. Virtuozzo provides no description for VZLSA advisories. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

Solution

Update the affected glibc / glibc-common / glibc-devel / glibc-headers / etc package.

See Also

http://www.nessus.org/u?a36c304b

https://access.redhat.com/errata/RHSA-2017-1481

Plugin Details

Severity: High

ID: 101482

File Name: Virtuozzo_VZLSA-2017-1481.nasl

Version: 1.11

Type: local

Published: 7/13/2017

Updated: 1/4/2021

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: High

Score: 8.9

CVSS v2

Risk Factor: High

Base Score: 7.2

Temporal Score: 5.6

Vector: CVSS2#AV:L/AC:L/Au:N/C:C/I:C/A:C

CVSS v3

Risk Factor: High

Base Score: 7.8

Temporal Score: 7

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

Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:virtuozzo:virtuozzo:glibc, p-cpe:/a:virtuozzo:virtuozzo:glibc-common, p-cpe:/a:virtuozzo:virtuozzo:glibc-devel, p-cpe:/a:virtuozzo:virtuozzo:glibc-headers, p-cpe:/a:virtuozzo:virtuozzo:glibc-static, p-cpe:/a:virtuozzo:virtuozzo:glibc-utils, p-cpe:/a:virtuozzo:virtuozzo:nscd, cpe:/o:virtuozzo:virtuozzo:7

Required KB Items: Host/local_checks_enabled, Host/Virtuozzo/release, Host/Virtuozzo/rpm-list

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 6/20/2017

Reference Information

CVE: CVE-2017-1000366