The remote Oracle Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2017-1865 advisory.

    - Use libbsd for randoms (CVE-2017-2626, rhbz#1427715)
    - Use libbsd for randoms (CVE-2017-2625, rhbz#1427716)
    - fixes CVE-2016-5407
    - fixes CVE-2016-7953

Tenable has extracted the preceding description block directly from the Oracle Linux security advisory.

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

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

Red Hat Product Security has rated this update as having a security impact of Moderate. 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 X11 (Xorg) libraries provide library routines that are used within all X Window applications.

The following packages have been upgraded to a later upstream version:
libX11 (1.6.5), libXaw (1.0.13), libXdmcp (1.1.2), libXfixes (5.0.3), libXfont (1.5.2), libXi (1.7.9), libXpm (3.5.12), libXrandr (1.5.1), libXrender (0.9.10), libXt (1.1.5), libXtst (1.2.3), libXv (1.0.11), libXvMC (1.0.10), libXxf86vm (1.1.4), libdrm (2.4.74), libepoxy (1.3.1), libevdev (1.5.6), libfontenc (1.1.3), libvdpau (1.1.1), libwacom (0.24), libxcb (1.12), libxkbfile (1.0.9), mesa (17.0.1), mesa-private-llvm (3.9.1), xcb-proto (1.12), xkeyboard-config (2.20), xorg-x11-proto-devel (7.7). (BZ#1401667, BZ#1401668, BZ#1401669, BZ#1401670, BZ#1401671, BZ#1401672, BZ#1401673, BZ#1401675, BZ# 1401676, BZ#1401677, BZ#1401678, BZ#1401679, BZ#1401680, BZ#1401681, BZ# 1401682, BZ#1401683, BZ#1401685, BZ#1401690, BZ#1401752, BZ#1401753, BZ# 1401754, BZ#1402560, BZ#1410477, BZ#1411390, BZ#1411392, BZ#1411393, BZ# 1411452, BZ#1420224)

Security Fix(es) :

* An integer overflow flaw leading to a heap-based buffer overflow was found in libXpm. An attacker could use this flaw to crash an application using libXpm via a specially crafted XPM file.
(CVE-2016-10164)

* It was discovered that libXdmcp used weak entropy to generate session keys. On a multi-user system using xdmcp, a local attacker could potentially use information available from the process list to brute force the key, allowing them to hijack other users' sessions.
(CVE-2017-2625)

* It was discovered that libICE used a weak entropy to generate keys.
A local attacker could potentially use this flaw for session hijacking using the information available from the process list. (CVE-2017-2626)

Red Hat would like to thank Eric Sesterhenn (X41 D-Sec GmbH) for reporting CVE-2017-2625 and CVE-2017-2626.

Additional Changes :

For detailed information on changes in this release, see the Red Hat Enterprise Linux 7.4 Release Notes linked from the References section.

This update for libICE fixes the following issues :

  - CVE-2017-2626: Creation of the ICE auth session cookies     used insufficient randomness, making these cookies     predictable. A more random generation method has been     implemented. (boo#1025068)

The remote Ubuntu 16.04 ESM / 18.04 LTS host has packages installed that are affected by a vulnerability as referenced in the USN-5744-1 advisory.

    It was discovered that libICE was using a weak mechanism to generate the session cookies. A local attacker     could possibly use this issue to perform a privilege escalation attack.

Tenable has extracted the preceding description block directly from the Ubuntu security advisory.

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

The remote MiracleLinux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the AXSA:2017-2024:01 advisory.

    * An integer overflow flaw leading to a heap-based buffer overflow was found     in libXpm. An attacker could use this flaw to crash an application using libXpm     via a specially crafted XPM file. (CVE-2016-10164)
      * It was discovered that libXdmcp used weak entropy to generate session keys.
    On a multi-user system using xdmcp, a local attacker could potentially use     information available from the process list to brute force the key, allowing     them to hijack other users' sessions. (CVE-2017-2625)
      * It was discovered that libICE used a weak entropy to generate keys. A local     attacker could potentially use this flaw for session hijacking using the     information available from the process list. (CVE-2017-2626)     CVE-2016-10164     Multiple integer overflows in libXpm before 3.5.12, when a program     requests parsing XPM extensions on a 64-bit platform, allow remote     attackers to cause a denial of service (out-of-bounds write) or     execute arbitrary code via (1) the number of extensions or (2) their     concatenated length in a crafted XPM file, which triggers a heap-based     buffer overflow.
    CVE-2017-2625
    ** RESERVED **     This candidate has been reserved by an organization or individual that     will use it when announcing a new security problem.  When the     candidate has been publicized, the details for this candidate will be     provided.
    CVE-2017-2626
    ** RESERVED **     This candidate has been reserved by an organization or individual that     will use it when announcing a new security problem.  When the     candidate has been publicized, the details for this candidate will be     provided.

Tenable has extracted the preceding description block directly from the MiracleLinux security advisory.

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

ID	名稱	產品	系列	已發布	已更新	嚴重性
102340	Oracle Linux 7 : X.org / X11 / libraries (ELSA-2017-1865)	Nessus	Oracle Linux Local Security Checks	2017/8/10	2025/12/2	critical
102740	CentOS 7 : libICE / libX11 / libXaw / libXcursor / libXdmcp / libXfixes / libXfont / libXfont2 / etc (CESA-2017:1865)	Nessus	CentOS Local Security Checks	2017/8/25	2025/11/25	critical
101281	openSUSE Security Update : libICE (openSUSE-2017-784)	Nessus	SuSE Local Security Checks	2017/7/7	2025/12/12	medium
168208	Ubuntu 16.04 ESM / 18.04 LTS : libICE vulnerability (USN-5744-1)	Nessus	Ubuntu Local Security Checks	2022/11/28	2024/8/27	medium
289337	MiracleLinux 7 : X.org X11 libraries security, bug fix and enhancement update (AXSA:2017-2024:01)	Nessus	Miracle Linux Local Security Checks	2026/1/16	2026/1/16	critical

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