CVE-2015-1803
published 2015-03-20CVE-2015-1803: The bdfReadCharacters function in bitmap/bdfread.c in X.Org libXfont before 1.4.9 and 1.5.x before 1.5.1 does not properly handle character bitmaps it cannot…
PriorityP343high8.5CVSS 2.0
AVNACMAuSCCICAC
EPSS
4.90%
91.0th percentile
The bdfReadCharacters function in bitmap/bdfread.c in X.Org libXfont before 1.4.9 and 1.5.x before 1.5.1 does not properly handle character bitmaps it cannot read, which allows remote authenticated users to cause a denial of service (NULL pointer dereference and crash) and possibly execute arbitrary code via a crafted BDF font file.
Affected
12 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| canonical | ubuntu_linux | — | — |
| canonical | ubuntu_linux | — | — |
| canonical | ubuntu_linux | — | — |
| canonical | ubuntu_linux | — | — |
| debian | debian_linux | — | — |
| debian | libxfont | < libxfont 1:1.5.1-1 (bookworm) | libxfont 1:1.5.1-1 (bookworm) |
| x.org | libxfont | >= 0 < 1:1.5.1-1 | 1:1.5.1-1 |
| x.org | libxfont | >= 0 < 1:1.5.1-1 | 1:1.5.1-1 |
| x.org | libxfont | >= 0 < 1:1.5.1-1 | 1:1.5.1-1 |
| x.org | libxfont | >= 0 < 1:1.5.1-1 | 1:1.5.1-1 |
| x | libxfont | <= 1.4.8 | — |
| x | libxfont | — | — |
CVSS provenance
nvdv2.08.5HIGHAV:N/AC:M/Au:S/C:C/I:C/A:C
osv8.5HIGH
vendor_debian8.5HIGH
vendor_redhat8.5HIGH
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Ubuntu
libXfont vulnerabilities
vendor_ubuntu·2015-03-18
CVE-2015-1802 libXfont vulnerabilities
Title: libXfont vulnerabilities
Summary: libXfont could be made to crash or run programs as an administrator
if it opened a specially crafted bdf font file.
Ilja van Sprundel, Alan Coopersmith, and William Robinet discovered that
libXfont incorrectly handled malformed bdf fonts. A local attacker could
use this issue to cause libXfont to crash, or possibly execute arbitrary
code in order to gain privileges.
Instructions: After a standard system update you need to reboot your computer to make
all the necessary changes.
Red Hat
libXfont: crash on invalid read in bdfReadCharacters
vendor_redhat·2015-03-17·CVSS 8.5
CVE-2015-1803 [HIGH] CWE-252 libXfont: crash on invalid read in bdfReadCharacters
libXfont: crash on invalid read in bdfReadCharacters
The bdfReadCharacters function in bitmap/bdfread.c in X.Org libXfont before 1.4.9 and 1.5.x before 1.5.1 does not properly handle character bitmaps it cannot read, which allows remote authenticated users to cause a denial of service (NULL pointer dereference and crash) and possibly execute arbitrary code via a crafted BDF font file.
A NULL pointer dereference flaw was discovered in the way libXfont processed certain Glyph Bitmap Distribution Format (BDF) fonts. A malicious, local user could use this flaw to crash the X.Org server.
Package: libXfont (Red Hat Enterprise Linux 5) - Affected
Debian
CVE-2015-1803: libxfont - The bdfReadCharacters function in bitmap/bdfread.c in X.Org libXfont before 1.4....
vendor_debian·2015·CVSS 8.5
CVE-2015-1803 [HIGH] CVE-2015-1803: libxfont - The bdfReadCharacters function in bitmap/bdfread.c in X.Org libXfont before 1.4....
The bdfReadCharacters function in bitmap/bdfread.c in X.Org libXfont before 1.4.9 and 1.5.x before 1.5.1 does not properly handle character bitmaps it cannot read, which allows remote authenticated users to cause a denial of service (NULL pointer dereference and crash) and possibly execute arbitrary code via a crafted BDF font file.
Scope: local
bookworm: resolved (fixed in 1:1.5.1-1)
bullseye: resolved (fixed in 1:1.5.1-1)
forky: resolved (fixed in 1:1.5.1-1)
sid: resolved (fixed in 1:1.5.1-1)
trixie: resolved (fixed in 1:1.5.1-1)
GHSA
GHSA-7vwv-c4f9-4xwx: The bdfReadCharacters function in bitmap/bdfread
ghsa_unreviewed·2022-05-17
CVE-2015-1803 [HIGH] GHSA-7vwv-c4f9-4xwx: The bdfReadCharacters function in bitmap/bdfread
The bdfReadCharacters function in bitmap/bdfread.c in X.Org libXfont before 1.4.9 and 1.5.x before 1.5.1 does not properly handle character bitmaps it cannot read, which allows remote authenticated users to cause a denial of service (NULL pointer dereference and crash) and possibly execute arbitrary code via a crafted BDF font file.
OSV
CVE-2015-1803: The bdfReadCharacters function in bitmap/bdfread
osv·2015-03-20·CVSS 8.5
CVE-2015-1803 [HIGH] CVE-2015-1803: The bdfReadCharacters function in bitmap/bdfread
The bdfReadCharacters function in bitmap/bdfread.c in X.Org libXfont before 1.4.9 and 1.5.x before 1.5.1 does not properly handle character bitmaps it cannot read, which allows remote authenticated users to cause a denial of service (NULL pointer dereference and crash) and possibly execute arbitrary code via a crafted BDF font file.
No detection rules found.
No public exploits indexed.
Bugzilla
CVE-2015-1803 libXfont: crash on invalid read in bdfReadCharacters
bugzilla·2015-03-19·CVSS 8.5
CVE-2015-1803 [HIGH] CVE-2015-1803 libXfont: crash on invalid read in bdfReadCharacters
CVE-2015-1803 libXfont: crash on invalid read in bdfReadCharacters
If the bdf parser failed to parse the data for the bitmap for any character, it would proceed with an invalid pointer to the bitmap data and later crash when trying to read the bitmap from that pointer.
A local user could exploit this issue to crash the X.Org server.
Upstream patch:
http://cgit.freedesktop.org/xorg/lib/libXfont/commit/?id=78c2e3d70d29698244f70164428bd2868c0ab34c
External References:
http://www.x.org/wiki/Development/Security/Advisory-2015-03-17/
Discussion:
Created libXfont tracking bugs for this issue:
Affects: fedora-all [bug 1203720]
---
libXfont-1.5.1-1.fc21 has been pushed to the Fedora 21 stable repository. If problems still persist, please make note of it in this bug report.
---
This iss
Bugzilla
CVE-2015-1804 CVE-2015-1802 CVE-2015-1803 libXfont: various flaws [fedora-all]
bugzilla·2015-03-19·CVSS 8.5
CVE-2015-1804 [HIGH] CVE-2015-1804 CVE-2015-1802 CVE-2015-1803 libXfont: various flaws [fedora-all]
CVE-2015-1804 CVE-2015-1802 CVE-2015-1803 libXfont: various flaws [fedora-all]
This is an automatically created tracking bug! It was created to ensure
that one or more security vulnerabilities are fixed in affected versions
of Fedora.
For comments that are specific to the vulnerability please use bugs filed
against the "Security Response" product referenced in the "Blocks" field.
For more information see:
http://fedoraproject.org/wiki/Security/TrackingBugs
When submitting as an update, use the fedpkg template provided in the next
comment(s). This will include the bug IDs of this tracking bug as well as
the relevant top-level CVE bugs.
Please also mention the CVE IDs being fixed in the RPM changelog and the
fedpkg commit message.
NOTE: this issue affects multiple supported versions of
http://advisories.mageia.org/MGASA-2015-0113.htmlhttp://lists.fedoraproject.org/pipermail/package-announce/2015-March/152497.htmlhttp://lists.fedoraproject.org/pipermail/package-announce/2015-March/152838.htmlhttp://lists.opensuse.org/opensuse-security-announce/2015-03/msg00032.htmlhttp://lists.opensuse.org/opensuse-security-announce/2015-04/msg00002.htmlhttp://lists.opensuse.org/opensuse-security-announce/2015-04/msg00005.htmlhttp://rhn.redhat.com/errata/RHSA-2015-1708.htmlhttp://www.debian.org/security/2015/dsa-3194http://www.mandriva.com/security/advisories?name=MDVSA-2015:145http://www.oracle.com/technetwork/topics/security/bulletinapr2015-2511959.htmlhttp://www.oracle.com/technetwork/topics/security/cpujul2015-2367936.htmlhttp://www.securityfocus.com/bid/73280http://www.securitytracker.com/id/1031935http://www.ubuntu.com/usn/USN-2536-1http://www.x.org/wiki/Development/Security/Advisory-2015-03-17/https://security.gentoo.org/glsa/201507-21http://advisories.mageia.org/MGASA-2015-0113.htmlhttp://lists.fedoraproject.org/pipermail/package-announce/2015-March/152497.htmlhttp://lists.fedoraproject.org/pipermail/package-announce/2015-March/152838.htmlhttp://lists.opensuse.org/opensuse-security-announce/2015-03/msg00032.htmlhttp://lists.opensuse.org/opensuse-security-announce/2015-04/msg00002.htmlhttp://lists.opensuse.org/opensuse-security-announce/2015-04/msg00005.htmlhttp://rhn.redhat.com/errata/RHSA-2015-1708.htmlhttp://www.debian.org/security/2015/dsa-3194http://www.mandriva.com/security/advisories?name=MDVSA-2015:145http://www.oracle.com/technetwork/topics/security/bulletinapr2015-2511959.htmlhttp://www.oracle.com/technetwork/topics/security/cpujul2015-2367936.htmlhttp://www.securityfocus.com/bid/73280http://www.securitytracker.com/id/1031935http://www.ubuntu.com/usn/USN-2536-1http://www.x.org/wiki/Development/Security/Advisory-2015-03-17/https://security.gentoo.org/glsa/201507-21
2015-03-20
Published