Integer underflow in the png_check_keyword function in pngwutil.c in libpng 0.90 through 0.99, 1.0.x before 1.0.66, 1.1.x and 1.2.x before 1.2.56, 1.3.x and 1.4.x before 1.4.19, and 1.5.x before 1.5.26 allows remote attackers to have unspecified impact via a space character as a keyword in a PNG image, which triggers an out-of-bounds read.
2016-04-14T14:59:03.287
2025-04-12T10:46:40.837
Deferred
CVSSv3.0: 8.8 (HIGH)
AV:N/AC:M/Au:N/C:C/I:C/A:C
8.6
10.0
| Type | Vendor | Product | Version/Range | Vulnerable? |
|---|---|---|---|---|
| Operating System | redhat | enterprise_linux_desktop_supplementary | 5.0 | Yes |
| Operating System | redhat | enterprise_linux_desktop_supplementary | 6.0 | Yes |
| Operating System | redhat | enterprise_linux_hpc_node | 6.0 | Yes |
| Operating System | redhat | enterprise_linux_server_supplementary | 5.0 | Yes |
| Operating System | redhat | enterprise_linux_server_supplementary | 6.0 | Yes |
| Operating System | redhat | enterprise_linux_workstation_supplementary | 6.0 | Yes |
| Application | libpng | libpng | 1.2.0 | Yes |
| Application | libpng | libpng | 1.2.1 | Yes |
| Application | libpng | libpng | 1.2.2 | Yes |
| Application | libpng | libpng | 1.2.3 | Yes |
| Application | libpng | libpng | 1.2.4 | Yes |
| Application | libpng | libpng | 1.2.5 | Yes |
| Application | libpng | libpng | 1.2.6 | Yes |
| Application | libpng | libpng | 1.2.7 | Yes |
| Application | libpng | libpng | 1.2.8 | Yes |
| Application | libpng | libpng | 1.2.9 | Yes |
| Application | libpng | libpng | 1.2.10 | Yes |
| Application | libpng | libpng | 1.2.11 | Yes |
| Application | libpng | libpng | 1.2.12 | Yes |
| Application | libpng | libpng | 1.2.13 | Yes |
| Application | libpng | libpng | 1.2.14 | Yes |
| Application | libpng | libpng | 1.2.15 | Yes |
| Application | libpng | libpng | 1.2.16 | Yes |
| Application | libpng | libpng | 1.2.17 | Yes |
| Application | libpng | libpng | 1.2.18 | Yes |
| Application | libpng | libpng | 1.2.19 | Yes |
| Application | libpng | libpng | 1.2.20 | Yes |
| Application | libpng | libpng | 1.2.21 | Yes |
| Application | libpng | libpng | 1.2.22 | Yes |
| Application | libpng | libpng | 1.2.23 | Yes |
| Application | libpng | libpng | 1.2.24 | Yes |
| Application | libpng | libpng | 1.2.25 | Yes |
| Application | libpng | libpng | 1.2.26 | Yes |
| Application | libpng | libpng | 1.2.27 | Yes |
| Application | libpng | libpng | 1.2.28 | Yes |
| Application | libpng | libpng | 1.2.29 | Yes |
| Application | libpng | libpng | 1.2.30 | Yes |
| Application | libpng | libpng | 1.2.31 | Yes |
| Application | libpng | libpng | 1.2.32 | Yes |
| Application | libpng | libpng | 1.2.33 | Yes |
| Application | libpng | libpng | 1.2.34 | Yes |
| Application | libpng | libpng | 1.2.35 | Yes |
| Application | libpng | libpng | 1.2.36 | Yes |
| Application | libpng | libpng | 1.2.37 | Yes |
| Application | libpng | libpng | 1.2.38 | Yes |
| Application | libpng | libpng | 1.2.39 | Yes |
| Application | libpng | libpng | 1.2.40 | Yes |
| Application | libpng | libpng | 1.2.41 | Yes |
| Application | libpng | libpng | 1.2.42 | Yes |
| Application | libpng | libpng | 1.2.43 | Yes |
| Application | libpng | libpng | 1.2.43 | Yes |
| Application | libpng | libpng | 1.2.44 | Yes |
| Application | libpng | libpng | 1.2.45 | Yes |
| Application | libpng | libpng | 1.2.45 | Yes |
| Application | libpng | libpng | 1.2.46 | Yes |
| Application | libpng | libpng | 1.2.46 | Yes |
| Application | libpng | libpng | 1.2.47 | Yes |
| Application | libpng | libpng | 1.2.47 | Yes |
| Application | libpng | libpng | 1.2.48 | Yes |
| Application | libpng | libpng | 1.2.48 | Yes |
| Application | libpng | libpng | 1.2.49 | Yes |
| Application | libpng | libpng | 1.2.50 | Yes |
| Application | libpng | libpng | 1.2.51 | Yes |
| Application | libpng | libpng | 1.2.52 | Yes |
| Application | libpng | libpng | 1.2.53 | Yes |
| Application | libpng | libpng | 1.2.54 | Yes |
| Application | libpng | libpng | 1.2.55 | Yes |
| Application | libpng | libpng | 1.1.1 | Yes |
| Application | libpng | libpng | 1.0.0 | Yes |
| Application | libpng | libpng | 1.0.1 | Yes |
| Application | libpng | libpng | 1.0.2 | Yes |
| Application | libpng | libpng | 1.0.3 | Yes |
| Application | libpng | libpng | 1.0.5 | Yes |
| Application | libpng | libpng | 1.0.6 | Yes |
| Application | libpng | libpng | 1.0.7 | Yes |
| Application | libpng | libpng | 1.0.8 | Yes |
| Application | libpng | libpng | 1.0.9 | Yes |
| Application | libpng | libpng | 1.0.10 | Yes |
| Application | libpng | libpng | 1.0.11 | Yes |
| Application | libpng | libpng | 1.0.12 | Yes |
| Application | libpng | libpng | 1.0.13 | Yes |
| Application | libpng | libpng | 1.0.14 | Yes |
| Application | libpng | libpng | 1.0.15 | Yes |
| Application | libpng | libpng | 1.0.16 | Yes |
| Application | libpng | libpng | 1.0.17 | Yes |
| Application | libpng | libpng | 1.0.18 | Yes |
| Application | libpng | libpng | 1.0.19 | Yes |
| Application | libpng | libpng | 1.0.20 | Yes |
| Application | libpng | libpng | 1.0.21 | Yes |
| Application | libpng | libpng | 1.0.22 | Yes |
| Application | libpng | libpng | 1.0.23 | Yes |
| Application | libpng | libpng | 1.0.24 | Yes |
| Application | libpng | libpng | 1.0.25 | Yes |
| Application | libpng | libpng | 1.0.26 | Yes |
| Application | libpng | libpng | 1.0.27 | Yes |
| Application | libpng | libpng | 1.0.28 | Yes |
| Application | libpng | libpng | 1.0.29 | Yes |
| Application | libpng | libpng | 1.0.30 | Yes |
| Application | libpng | libpng | 1.0.31 | Yes |
| Application | libpng | libpng | 1.0.32 | Yes |
| Application | libpng | libpng | 1.0.33 | Yes |
| Application | libpng | libpng | 1.0.34 | Yes |
| Application | libpng | libpng | 1.0.35 | Yes |
| Application | libpng | libpng | 1.0.37 | Yes |
| Application | libpng | libpng | 1.0.38 | Yes |
| Application | libpng | libpng | 1.0.39 | Yes |
| Application | libpng | libpng | 1.0.40 | Yes |
| Application | libpng | libpng | 1.0.41 | Yes |
| Application | libpng | libpng | 1.0.42 | Yes |
| Application | libpng | libpng | 1.0.43 | Yes |
| Application | libpng | libpng | 1.0.44 | Yes |
| Application | libpng | libpng | 1.0.45 | Yes |
| Application | libpng | libpng | 1.0.46 | Yes |
| Application | libpng | libpng | 1.0.47 | Yes |
| Application | libpng | libpng | 1.0.48 | Yes |
| Application | libpng | libpng | 1.0.50 | Yes |
| Application | libpng | libpng | 1.0.51 | Yes |
| Application | libpng | libpng | 1.0.52 | Yes |
| Application | libpng | libpng | 1.0.53 | Yes |
| Application | libpng | libpng | 1.0.54 | Yes |
| Application | libpng | libpng | 1.0.55 | Yes |
| Application | libpng | libpng | 1.0.55 | Yes |
| Application | libpng | libpng | 1.0.56 | Yes |
| Application | libpng | libpng | 1.0.56 | Yes |
| Application | libpng | libpng | 1.0.57 | Yes |
| Application | libpng | libpng | 1.0.57 | Yes |
| Application | libpng | libpng | 1.0.58 | Yes |
| Application | libpng | libpng | 1.0.59 | Yes |
| Application | libpng | libpng | 1.0.60 | Yes |
| Application | libpng | libpng | 1.0.61 | Yes |
| Application | libpng | libpng | 1.0.62 | Yes |
| Application | libpng | libpng | 1.0.63 | Yes |
| Application | libpng | libpng | 1.0.64 | Yes |
| Application | libpng | libpng | 1.0.65 | Yes |
| Operating System | fedoraproject | fedora | 23 | Yes |
| Operating System | debian | debian_linux | 6.0 | Yes |
| Application | libpng | libpng | 1.4.0 | Yes |
| Application | libpng | libpng | 1.4.1 | Yes |
| Application | libpng | libpng | 1.4.2 | Yes |
| Application | libpng | libpng | 1.4.3 | Yes |
| Application | libpng | libpng | 1.4.4 | Yes |
| Application | libpng | libpng | 1.4.5 | Yes |
| Application | libpng | libpng | 1.4.6 | Yes |
| Application | libpng | libpng | 1.4.7 | Yes |
| Application | libpng | libpng | 1.4.8 | Yes |
| Application | libpng | libpng | 1.4.9 | Yes |
| Application | libpng | libpng | 1.4.10 | Yes |
| Application | libpng | libpng | 1.4.11 | Yes |
| Application | libpng | libpng | 1.4.12 | Yes |
| Application | libpng | libpng | 1.4.13 | Yes |
| Application | libpng | libpng | 1.4.14 | Yes |
| Application | libpng | libpng | 1.4.15 | Yes |
| Application | libpng | libpng | 1.4.16 | Yes |
| Application | libpng | libpng | 1.4.17 | Yes |
| Application | libpng | libpng | 1.4.18 | Yes |
| Application | libpng | libpng | 0.90 | Yes |
| Application | libpng | libpng | 0.95 | Yes |
| Application | libpng | libpng | 0.96 | Yes |
| Application | libpng | libpng | 0.97 | Yes |
| Application | libpng | libpng | 0.98 | Yes |
| Application | libpng | libpng | 0.99 | Yes |
| Application | libpng | libpng | 1.5.0 | Yes |
| Application | libpng | libpng | 1.5.1 | Yes |
| Application | libpng | libpng | 1.5.1 | Yes |
| Application | libpng | libpng | 1.5.2 | Yes |
| Application | libpng | libpng | 1.5.2 | Yes |
| Application | libpng | libpng | 1.5.3 | Yes |
| Application | libpng | libpng | 1.5.4 | Yes |
| Application | libpng | libpng | 1.5.4 | Yes |
| Application | libpng | libpng | 1.5.5 | Yes |
| Application | libpng | libpng | 1.5.5 | Yes |
| Application | libpng | libpng | 1.5.6 | Yes |
| Application | libpng | libpng | 1.5.6 | Yes |
| Application | libpng | libpng | 1.5.7 | Yes |
| Application | libpng | libpng | 1.5.7 | Yes |
| Application | libpng | libpng | 1.5.8 | Yes |
| Application | libpng | libpng | 1.5.8 | Yes |
| Application | libpng | libpng | 1.5.9 | Yes |
| Application | libpng | libpng | 1.5.9 | Yes |
| Application | libpng | libpng | 1.5.10 | Yes |
| Application | libpng | libpng | 1.5.11 | Yes |
| Application | libpng | libpng | 1.5.11 | Yes |
| Application | libpng | libpng | 1.5.12 | Yes |
| Application | libpng | libpng | 1.5.13 | Yes |
| Application | libpng | libpng | 1.5.13 | Yes |
| Application | libpng | libpng | 1.5.14 | Yes |
| Application | libpng | libpng | 1.5.15 | Yes |
| Application | libpng | libpng | 1.5.16 | Yes |
| Application | libpng | libpng | 1.5.17 | Yes |
| Application | libpng | libpng | 1.5.18 | Yes |
| Application | libpng | libpng | 1.5.19 | Yes |
| Application | libpng | libpng | 1.5.20 | Yes |
| Application | libpng | libpng | 1.5.21 | Yes |
| Application | libpng | libpng | 1.5.22 | Yes |
| Application | libpng | libpng | 1.5.23 | Yes |
| Application | libpng | libpng | 1.5.24 | Yes |
| Application | libpng | libpng | 1.5.25 | Yes |
| Application | libpng | libpng | 1.3.0 | Yes |