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.
2015-03-20T14:59:02.403
2025-04-12T10:46:40.837
Deferred
CVSSv2: 8.5 (HIGH)
AV:N/AC:M/Au:S/C:C/I:C/A:C
6.8
10.0
Type | Vendor | Product | Version/Range | Vulnerable? |
---|---|---|---|---|
Operating System | canonical | ubuntu_linux | 10.04 | Yes |
Operating System | canonical | ubuntu_linux | 12.04 | Yes |
Operating System | canonical | ubuntu_linux | 14.04 | Yes |
Operating System | canonical | ubuntu_linux | 14.10 | Yes |
Operating System | debian | debian_linux | 7.0 | Yes |
Application | x | libxfont | ≤ 1.4.8 | Yes |
Application | x | libxfont | 1.5.0 | Yes |