Vulnerability Details : CVE-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 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.
Vulnerability category: Memory CorruptionExecute codeDenial of service
Products affected by CVE-2015-1803
- cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:10.04:*:*:*:lts:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:lts:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:14.10:*:*:*:*:*:*:*
- cpe:2.3:a:x:libxfont:*:*:*:*:*:*:*:*
- cpe:2.3:a:x:libxfont:1.5.0:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2015-1803
1.53%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 87 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2015-1803
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
8.5
|
HIGH | AV:N/AC:M/Au:S/C:C/I:C/A:C |
6.8
|
10.0
|
NIST |
References for CVE-2015-1803
-
http://lists.opensuse.org/opensuse-security-announce/2015-04/msg00005.html
[security-announce] SUSE-SU-2015:0702-1: important: Security update for
-
http://www.mandriva.com/security/advisories?name=MDVSA-2015:145
mandriva.com
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http://rhn.redhat.com/errata/RHSA-2015-1708.html
RHSA-2015:1708 - Security Advisory - Red Hat Customer Portal
-
http://www.oracle.com/technetwork/topics/security/bulletinapr2015-2511959.html
Oracle Solaris Third Party Bulletin - April 2015
-
http://www.ubuntu.com/usn/USN-2536-1
USN-2536-1: libXfont vulnerabilities | Ubuntu security notices
-
https://security.gentoo.org/glsa/201507-21
libXfont: Multiple vulnerabilities (GLSA 201507-21) — Gentoo security
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http://lists.fedoraproject.org/pipermail/package-announce/2015-March/152497.html
[SECURITY] Fedora 22 Update: libXfont-1.5.1-1.fc22
-
http://lists.opensuse.org/opensuse-security-announce/2015-04/msg00002.html
[security-announce] SUSE-SU-2015:0674-1: important: Security update for
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http://www.securitytracker.com/id/1031935
libXfont Font Processing Flaws Lets Local Users Deny Service or Gain Elevated Privileges - SecurityTracker
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http://www.debian.org/security/2015/dsa-3194
Debian -- Security Information -- DSA-3194-1 libxfont
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http://www.securityfocus.com/bid/73280
X.Org libXfont 'bitmap/bdfread.c' Local Denial of Service Vulnerability
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http://advisories.mageia.org/MGASA-2015-0113.html
Mageia Advisory: MGASA-2015-0113 - Updated libxfont package fixes security vulnerabilities
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http://www.x.org/wiki/Development/Security/Advisory-2015-03-17/
Advisory-2015-03-17Vendor Advisory
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http://www.oracle.com/technetwork/topics/security/cpujul2015-2367936.html
Oracle Critical Patch Update - July 2015
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http://lists.fedoraproject.org/pipermail/package-announce/2015-March/152838.html
[SECURITY] Fedora 21 Update: libXfont-1.5.1-1.fc21
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http://lists.opensuse.org/opensuse-security-announce/2015-03/msg00032.html
[security-announce] openSUSE-SU-2015:0614-1: important: Security update
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