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Red Hat: RHSA-2015:1210-01 moderate: ABRT Privilege Escalation Risk

red hat
Calendar Grey July 7, 2015
Dist Redhat Esm H88
Cautionary notification issued for abrt within Red Hat Enterprise Linux to mitigate vulnerabilities related to privilege escalation and information leakage.
Updated abrt packages that fix multiple security issues are now available for Red Hat Enterprise Linux 6

Solution

Before applying this update, make sure all previously released errata relevant to your system have been applied.

For details on how to apply this update, refer to:

https://access.redhat.com/articles/11258

Summary

ABRT (Automatic Bug Reporting Tool) is a tool to help users to detect defects in applications and to create a bug report with all the information needed by a maintainer to fix it. It uses a plug-in system to extend its functionality.
It was found that ABRT was vulnerable to multiple race condition and symbolic link flaws. A local attacker could use these flaws to potentially escalate their privileges on the system. (CVE-2015-3315)
It was discovered that the kernel-invoked coredump processor provided by ABRT wrote core dumps to files owned by other system users. This could result in information disclosure if an application crashed while its current directory was a directory writable to by other users (such as /tmp). (CVE-2015-3142)
It was discovered that the default event handling scripts installed by ABRT did not handle symbolic links correctly. A local attacker with write access to an ABRT problem directory could use this flaw to escalate their privileges. (CVE-2015-1869)
It was found that the ABRT event scripts created a user-readable copy of an sosreport file in ABRT problem directories, and included excerpts of /var/log/messages selected by the user-controlled process name, leading to an information disclosure. (CVE-2015-1870)
It was discovered that, when moving problem reports between certain directories, abrt-handle-upload did not verify that the new problem directory had appropriate permissions and did not contain symbolic links. An attacker able to create a crafted problem report could use this flaw to expose other parts of ABRT, or to overwrite arbitrary files on the system. (CVE-2015-3147)
It was discovered that the abrt-action-install-debuginfo-to-abrt-cache helper program did not properly filter the process environment before invoking abrt-action-install-debuginfo. A local attacker could use this flaw to escalate their privileges on the system. (CVE-2015-3159)
The CVE-2015-1869, CVE-2015-1870, CVE-2015-3142, CVE-2015-3147, and CVE-2015-3159 issues were discovered by Florian Weimer of Red Hat Product Security.
All users of abrt are advised to upgrade to these updated packages, which correct these issues.

Topics%20covered

Topics Covered

security advisory security update Red Hat privilege escalation information disclosure Moderate risk abrt

References

https://access.redhat.com/security/cve/CVE-2015-1869 https://access.redhat.com/security/cve/CVE-2015-1870 https://access.redhat.com/security/cve/CVE-2015-3142 https://access.redhat.com/security/cve/CVE-2015-3147 https://access.redhat.com/security/cve/CVE-2015-3159 https://access.redhat.com/security/cve/CVE-2015-3315 https://access.redhat.com/security/updates/classification/#moderate

Package List

Red Hat Enterprise Linux Desktop (v. 6):
Source: abrt-2.0.8-26.el6_6.1.src.rpm libreport-2.0.9-21.el6_6.1.src.rpm
i386: abrt-2.0.8-26.el6_6.1.i686.rpm abrt-addon-ccpp-2.0.8-26.el6_6.1.i686.rpm abrt-addon-kerneloops-2.0.8-26.el6_6.1.i686.rpm abrt-addon-python-2.0.8-26.el6_6.1.i686.rpm abrt-cli-2.0.8-26.el6_6.1.i686.rpm abrt-debuginfo-2.0.8-26.el6_6.1.i686.rpm abrt-desktop-2.0.8-26.el6_6.1.i686.rpm abrt-gui-2.0.8-26.el6_6.1.i686.rpm abrt-libs-2.0.8-26.el6_6.1.i686.rpm abrt-tui-2.0.8-26.el6_6.1.i686.rpm libreport-2.0.9-21.el6_6.1.i686.rpm libreport-cli-2.0.9-21.el6_6.1.i686.rpm libreport-compat-2.0.9-21.el6_6.1.i686.rpm libreport-debuginfo-2.0.9-21.el6_6.1.i686.rpm libreport-gtk-2.0.9-21.el6_6.1.i686.rpm libreport-newt-2.0.9-21.el6_6.1.i686.rpm libreport-plugin-kerneloops-2.0.9-21.el6_6.1.i686.rpm libreport-plugin-logger-2.0.9-21.el6_6.1.i686.rpm libreport-plugin-mailx-2.0.9-21.el6_6.1.i686.rpm libreport-plugin-reportuploader-2.0.9-21.el6_6.1.i686.rpm libreport-plugin-rhtsupport-2.0.9-21.el6_6.1.i686.rpm libreport-python-2.0.9-21.el6_6.1.i686.rpm
x86_64: abrt-2.0.8-26.el6_6.1.x86_64.rpm abrt-addon-ccpp-2.0.8-26.el6_6.1.x86_64.rpm abrt-addon-kerneloops-2.0.8-26.el6_6.1.x86_64.rpm abrt-addon-python-2.0.8-26.el6_6.1.x86_64.rpm abrt-cli-2.0.8-26.el6_6.1.x86_64.rpm

Read the Full Advisory


Advisory ID: RHSA-2015:1210-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2015:1210.html
Issue date: 2015-07-07

Topic

Updated abrt packages that fix multiple security issues are now availablefor Red Hat Enterprise Linux 6.Red Hat Product Security has rated this update as having Moderate securityimpact. Common Vulnerability Scoring System (CVSS) base scores, which givedetailed severity ratings, are available for each vulnerability from theCVE links in the References section.

Topics%20covered

Topics Covered

security advisory security update Red Hat privilege escalation information disclosure Moderate risk abrt

Relevant Releases Architectures

Red Hat Enterprise Linux Desktop (v. 6) - i386, x86_64

Red Hat Enterprise Linux Desktop Optional (v. 6) - i386, noarch, x86_64

Red Hat Enterprise Linux HPC Node (v. 6) - x86_64

Red Hat Enterprise Linux HPC Node Optional (v. 6) - noarch, x86_64

Red Hat Enterprise Linux Server (v. 6) - i386, ppc64, s390x, x86_64

Red Hat Enterprise Linux Server Optional (v. 6) - i386, noarch, ppc64, s390x, x86_64

Red Hat Enterprise Linux Workstation (v. 6) - i386, x86_64

Red Hat Enterprise Linux Workstation Optional (v. 6) - i386, noarch, x86_64

Bugs Fixed

1211835 - CVE-2015-3315 abrt: Various race-conditions and symlink issues found in abrt

1212818 - CVE-2015-3142 abrt: abrt-hook-ccpp writes core dumps to existing files owned by others1212861 - CVE-2015-1869 abrt: default event scripts follow symbolic links

1212868 - CVE-2015-1870 abrt: default abrt event scripts lead to information disclosure

1212953 - CVE-2015-3147 abrt: does not validate contents of uploaded problem reports

1216962 - CVE-2015-3159 abrt: missing process environment sanitizaton in abrt-action-install-debuginfo-to-abrt-cache

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