ID CVE-2017-16611
Summary In libXfont before 1.5.4 and libXfont2 before 2.0.3, a local attacker can open (but not read) files on the system as root, triggering tape rewinds, watchdogs, or similar mechanisms that can be triggered by opening files.
References
Vulnerable Configurations
  • Debian Linux 8.0 (Jessie)
    cpe:2.3:o:debian:debian_linux:8.0
  • Debian Linux 9.0
    cpe:2.3:o:debian:debian_linux:9.0
  • Canonical Ubuntu Linux 14.04 LTS (Long-Term Support)
    cpe:2.3:o:canonical:ubuntu_linux:14.04:-:-:-:lts
  • Canonical Ubuntu Linux 16.04 LTS (Long-Term Support)
    cpe:2.3:o:canonical:ubuntu_linux:16.04:-:-:-:lts
  • Canonical Ubuntu Linux 17.04
    cpe:2.3:o:canonical:ubuntu_linux:17.04
  • Canonical Ubuntu Linux 17.10
    cpe:2.3:o:canonical:ubuntu_linux:17.10
  • X.Org LibXFont 1.1.0
    cpe:2.3:a:x:libxfont:1.1.0
  • X.Org LibXFont 1.2.0
    cpe:2.3:a:x:libxfont:1.2.0
  • X.Org LibXFont 1.2.1
    cpe:2.3:a:x:libxfont:1.2.1
  • X.Org LibXFont 1.2.2
    cpe:2.3:a:x:libxfont:1.2.2
  • X.Org LibXFont 1.2.3
    cpe:2.3:a:x:libxfont:1.2.3
  • X.Org LibXFont 1.2.4
    cpe:2.3:a:x:libxfont:1.2.4
  • X.Org LibXFont 1.2.5
    cpe:2.3:a:x:libxfont:1.2.5
  • X.Org LibXFont 1.2.6
    cpe:2.3:a:x:libxfont:1.2.6
  • X.Org LibXFont 1.2.7
    cpe:2.3:a:x:libxfont:1.2.7
  • X.Org LibXFont 1.2.8
    cpe:2.3:a:x:libxfont:1.2.8
  • X.Org LibXFont 1.2.9
    cpe:2.3:a:x:libxfont:1.2.9
  • X.Org LibXFont 1.3.0
    cpe:2.3:a:x:libxfont:1.3.0
  • X.Org LibXFont 1.3.1
    cpe:2.3:a:x:libxfont:1.3.1
  • X.Org LibXFont 1.3.2
    cpe:2.3:a:x:libxfont:1.3.2
  • X.Org LibXFont 1.3.3
    cpe:2.3:a:x:libxfont:1.3.3
  • X.Org LibXFont 1.3.4
    cpe:2.3:a:x:libxfont:1.3.4
  • X.Org LibXFont 1.4.0
    cpe:2.3:a:x:libxfont:1.4.0
  • X.Org LibXFont 1.4.1
    cpe:2.3:a:x:libxfont:1.4.1
  • X.Org LibXFont 1.4.2
    cpe:2.3:a:x:libxfont:1.4.2
  • X.Org LibXFont 1.4.3
    cpe:2.3:a:x:libxfont:1.4.3
  • X.Org LibXFont 1.4.4
    cpe:2.3:a:x:libxfont:1.4.4
  • X.Org LibXFont 1.4.5
    cpe:2.3:a:x:libxfont:1.4.5
  • X.Org LibXFont 1.4.6
    cpe:2.3:a:x:libxfont:1.4.6
  • X.Org LibXFont 1.4.7
    cpe:2.3:a:x:libxfont:1.4.7
  • X.Org LibXFont 1.4.99
    cpe:2.3:a:x:libxfont:1.4.99
  • X.Org LibXFont 1.4.99.901
    cpe:2.3:a:x:libxfont:1.4.99.901
CVSS
Base: 2.1
Impact:
Exploitability:
CWE CWE-254
CAPEC
nessus via4
  • NASL family Fedora Local Security Checks
    NASL id FEDORA_2018-4F5A3E792F.NASL
    description Security fix for CVE-2017-16611 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.
    last seen 2019-02-21
    modified 2018-03-07
    plugin id 107164
    published 2018-03-07
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=107164
    title Fedora 27 : libXfont2 (2018-4f5a3e792f)
  • NASL family Slackware Local Security Checks
    NASL id SLACKWARE_SSA_2017-333-02.NASL
    description New libXfont packages are available for Slackware 13.0, 13.1, 13.37, 14.0, 14.1, and 14.2 to fix a security issue.
    last seen 2019-02-21
    modified 2018-01-26
    plugin id 104859
    published 2017-11-30
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=104859
    title Slackware 13.0 / 13.1 / 13.37 / 14.0 / 14.1 / 14.2 : libXfont (SSA:2017-333-02)
  • NASL family FreeBSD Local Security Checks
    NASL id FREEBSD_PKG_08A125F3E35A11E7A29354E1AD3D6335.NASL
    description the freedesktop.org project reports : A non-privileged X client can instruct X server running under root to open any file by creating own directory with 'fonts.dir', 'fonts.alias' or any font file being a symbolic link to any other file in the system. X server will then open it. This can be issue with special files such as /dev/watchdog.
    last seen 2019-02-21
    modified 2018-11-10
    plugin id 105335
    published 2017-12-18
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=105335
    title FreeBSD : libXfont -- permission bypass when opening files through symlinks (08a125f3-e35a-11e7-a293-54e1ad3d6335)
  • NASL family Fedora Local Security Checks
    NASL id FEDORA_2018-E27B435A7F.NASL
    description Security fix for CVE-2017-16611 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.
    last seen 2019-02-21
    modified 2018-03-07
    plugin id 107177
    published 2018-03-07
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=107177
    title Fedora 27 : libXfont (2018-e27b435a7f)
  • NASL family Fedora Local Security Checks
    NASL id FEDORA_2018-05B078C373.NASL
    description Security fix for CVE-2017-16611 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.
    last seen 2019-02-21
    modified 2018-03-07
    plugin id 107154
    published 2018-03-07
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=107154
    title Fedora 26 : libXfont2 (2018-05b078c373)
  • NASL family Fedora Local Security Checks
    NASL id FEDORA_2018-5A7CD68500.NASL
    description Security fix for CVE-2017-16611 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.
    last seen 2019-02-21
    modified 2018-03-07
    plugin id 107167
    published 2018-03-07
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=107167
    title Fedora 26 : libXfont (2018-5a7cd68500)
  • NASL family Gentoo Local Security Checks
    NASL id GENTOO_GLSA-201801-10.NASL
    description The remote host is affected by the vulnerability described in GLSA-201801-10 (LibXfont, LibXfont2: Arbitrary file access) It was discovered that libXfont incorrectly followed symlinks when opening font files. Impact : A local unprivileged user could use this flaw to cause the X server to access arbitrary files, including special device files. Workaround : There is no known workaround at this time.
    last seen 2019-02-21
    modified 2018-01-26
    plugin id 105666
    published 2018-01-09
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=105666
    title GLSA-201801-10 : LibXfont, LibXfont2: Arbitrary file access
  • NASL family Ubuntu Local Security Checks
    NASL id UBUNTU_USN-3500-1.NASL
    description It was discovered that libXfont incorrectly followed symlinks when opening font files. A local unprivileged user could use this issue to cause the X server to access arbitrary files, including special device files. Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
    last seen 2019-02-21
    modified 2018-12-01
    plugin id 104883
    published 2017-11-30
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=104883
    title Ubuntu 14.04 LTS / 16.04 LTS / 17.04 / 17.10 : libxfont, libxfont1, libxfont2 vulnerability (USN-3500-1)
refmap via4
confirm https://bugzilla.suse.com/show_bug.cgi?id=1050459
gentoo GLSA-201801-10
misc http://security.cucumberlinux.com/security/details.php?id=155
mlist
  • [freedesktop-xorg-announce] 20171128 libXfont 1.5.4
  • [freedesktop-xorg-announce] 20171128 libXfont2 2.0.3
  • [oss-security] 20171128 CVE-2017-16611 libXfont Open files with O_NOFOLLOW
ubuntu USN-3500-1
Last major update 01-12-2017 - 12:29
Published 01-12-2017 - 12:29
Last modified 09-01-2018 - 21:29
Back to Top