X.org libXrandr before 1.5.1 allows remote X servers to trigger out-of-bounds write operations by leveraging mishandling of reply data.

The remote Ubuntu 16.04 LTS host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-5428-1 advisory.

  - Multiple integer overflows in X.org libXrandr before 1.5.1 allow remote X servers to trigger out-of-bounds     write operations via a crafted response. (CVE-2016-7947)

  - X.org libXrandr before 1.5.1 allows remote X servers to trigger out-of-bounds write operations by     leveraging mishandling of reply data. (CVE-2016-7948)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

According to the versions of the libXrandr package installed, the EulerOS Virtualization for ARM 64 installation on the remote host is affected by the following vulnerabilities :

  - X.org libXrandr before 1.5.1 allows remote X servers to     trigger out-of-bounds write operations by leveraging     mishandling of reply data.(CVE-2016-7948)

  - Multiple integer overflows in X.org libXrandr before     1.5.1 allow remote X servers to trigger out-of-bounds     write operations via a crafted response.(CVE-2016-7947)

Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

The remote host is affected by the vulnerability described in GLSA-201704-03 (X.Org: Multiple vulnerabilities)

    Multiple vulnerabilities have been discovered in X.Org server and       libraries. Please review the CVE identifiers referenced below for       details.
  Impact :

    A local or remote users can utilize the vulnerabilities to attach to the       X.Org session as a user and execute arbitrary code.
  Workaround :

    There is no known workaround at this time.

This update for xorg-x11-libs fixes the following issues :

  - insufficient validation of data from the X server can     cause a one byte buffer read underrun (bsc#1003023,     CVE-2016-7953)

  - insufficient validation of data from the X server can     cause out of boundary memory access or endless loops     (Denial of Service) (bsc#1003012, CVE-2016-7951,     CVE-2016-7952)

  - insufficient validation of data from the X server can     cause out of boundary memory writes (bsc#1003000,     CVE-2016-7947, CVE-2016-7948)

  - insufficient validation of data from the X server can     cause out of boundary memory access or endless loops     (Denial of Service). (bsc#1002998, CVE-2016-7945,     CVE-2016-7946)

Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

This update for X Window System client libraries fixes a class of privilege escalation issues.

A malicious X server could send specially crafted data to X clients, which allowed for triggering crashes, or privilege escalation if this relationship was untrusted or crossed user or permission level boundaries.

The following libraries have been fixed :

libX11 :

  - plugged a memory leak (boo#1002991, CVE-2016-7942).

  - insufficient validation of data from the X server can     cause out of boundary memory read (XGetImage()) or write     (XListFonts()) (boo#1002991, CVE-2016-7942).

libXi :

  - Integer overflows in libXi can cause out of boundary     memory access or endless loops (Denial of Service)     (boo#1002998, CVE-2016-7945).

  - Insufficient validation of data in libXi can cause out     of boundary memory access or endless loops (Denial of     Service) (boo#1002998, CVE-2016-7946).

libXrandr :

  - Insufficient validation of data from the X server can     cause out of boundary memory writes (boo#1003000,     CVE-2016-7947, CVE-2016-7948).

This update for the X Window System client libraries fixes a class of privilege escalation issues. A malicious X Server could send specially crafted data to X clients, which allowed for triggering crashes, or privilege escalation if this relationship was untrusted or crossed user or permission level boundaries. libX11, libXfixes, libXi, libXrandr, libXrender, libXtst, libXv, libXvMC were fixed, specifically: libX11 :

  - CVE-2016-7942: insufficient validation of data from the     X server allowed out of boundary memory read     (bsc#1002991) libXfixes :

  - CVE-2016-7944: insufficient validation of data from the     X server can cause an integer overflow on 32 bit     architectures (bsc#1002995) libXi :

  - CVE-2016-7945, CVE-2016-7946: insufficient validation of     data from the X server can cause out of boundary memory     access or endless loops (Denial of Service)     (bsc#1002998) libXtst :

  - CVE-2016-7951, CVE-2016-7952: insufficient validation of     data from the X server can cause out of boundary memory     access or endless loops (Denial of Service)     (bsc#1003012) libXv :

  - CVE-2016-5407: insufficient validation of data from the     X server can cause out of boundary memory and memory     corruption (bsc#1003017) libXvMC :

  - CVE-2016-7953: insufficient validation of data from the     X server can cause a one byte buffer read underrun     (bsc#1003023) libXrender :

  - CVE-2016-7949, CVE-2016-7950: insufficient validation of     data from the X server can cause out of boundary memory     writes (bsc#1003002) libXrandr :

  - CVE-2016-7947, CVE-2016-7948: insufficient validation of     data from the X server can cause out of boundary memory     writes (bsc#1003000)

Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

Security fix for CVE-2016-7947, CVE-2016-7948

Note that Tenable Network Security has extracted the preceding description block directly from the Fedora update system website.
Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

New x11 packages are available for Slackware 13.0, 13.1, 13.37, 14.0, 14.1, 14.2, and -current to fix security issues.

This update for the X Window System client libraries fixes a class of privilege escalation issues.

A malicious X Server could send specially crafted data to X clients, which allowed for triggering crashes, or privilege escalation if this relationship was untrusted or crossed user or permission level boundaries.

libX11, libXfixes, libXi, libXrandr, libXrender, libXtst, libXv, libXvMC were fixed, specifically :

libX11 :

  - CVE-2016-7942: insufficient validation of data from the     X server allowed out of boundary memory read     (bsc#1002991)

libXfixes :

  - CVE-2016-7944: insufficient validation of data from the     X server can cause an integer overflow on 32 bit     architectures (bsc#1002995)

libXi :

  - CVE-2016-7945, CVE-2016-7946: insufficient validation of     data from the X server can cause out of boundary memory     access or endless loops (Denial of Service)     (bsc#1002998)

libXtst :

  - CVE-2016-7951, CVE-2016-7952: insufficient validation of     data from the X server can cause out of boundary memory     access or endless loops (Denial of Service)     (bsc#1003012)

libXv :

  - CVE-2016-5407: insufficient validation of data from the     X server can cause out of boundary memory and memory     corruption (bsc#1003017)

libXvMC :

  - CVE-2016-7953: insufficient validation of data from the     X server can cause a one byte buffer read underrun     (bsc#1003023)

libXrender :

  - CVE-2016-7949, CVE-2016-7950: insufficient validation of     data from the X server can cause out of boundary memory     writes (bsc#1003002)

libXrandr :

  - CVE-2016-7947, CVE-2016-7948: insufficient validation of     data from the X server can cause out of boundary memory     writes (bsc#1003000)

This update was imported from the SUSE:SLE-12:Update update project.

Insufficient validation of data from the X server in libxrandr before v1.5.0 can cause out of boundary memory writes and integer overflows.

For Debian 7 'Wheezy', these problems have been fixed in version 2:1.3.2-2+deb7u2.

We recommend that you upgrade your libxrandr packages.

NOTE: Tenable Network Security has extracted the preceding description block directly from the DLA security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

ID	Name	Product	Family	Severity
161330	Ubuntu 16.04 ESM : libXrandr vulnerabilities (USN-5428-1)	Nessus	Ubuntu Local Security Checks	critical
140953	EulerOS Virtualization for ARM 64 3.0.6.0 : libXrandr (EulerOS-SA-2020-2005)	Nessus	Huawei Local Security Checks	critical
99276	GLSA-201704-03 : X.Org: Multiple vulnerabilities	Nessus	Gentoo Local Security Checks	critical
96034	SUSE SLES11 Security Update : xorg-x11-libs (SUSE-SU-2016:3189-1)	Nessus	SuSE Local Security Checks	critical
95644	openSUSE Security Update : X Window System client libraries (openSUSE-2016-1420)	Nessus	SuSE Local Security Checks	critical
94939	SUSE SLED12 / SLES12 Security Update : X Window System client libraries (SUSE-SU-2016:2828-1)	Nessus	SuSE Local Security Checks	critical
94843	Fedora 25 : libXrandr (2016-a06c8cc941)	Nessus	Fedora Local Security Checks	critical
94489	Fedora 23 : libXrandr (2016-d045c2c7b3)	Nessus	Fedora Local Security Checks	critical
94439	Slackware 13.0 / 13.1 / 13.37 / 14.0 / 14.1 / 14.2 / current : x11 (SSA:2016-305-02)	Nessus	Slackware Local Security Checks	critical
94220	openSUSE Security Update : X Window System client libraries (openSUSE-2016-1214)	Nessus	SuSE Local Security Checks	critical
94101	Debian DLA-660-1 : libxrandr security update	Nessus	Debian Local Security Checks	critical
94036	SUSE SLED12 / SLES12 Security Update : X Window System client libraries (SUSE-SU-2016:2505-1)	Nessus	SuSE Local Security Checks	critical
93923	Fedora 24 : libXrandr (2016-83040426d6)	Nessus	Fedora Local Security Checks	critical

Detections

Analytics

CVE-2016-7948

critical

Tenable Plugins

critical

critical

critical

critical

critical

critical

critical

critical

critical

critical

critical

critical

critical