CVE-2017-12982

2017-08-2100:00:00

ubuntu.com

5.5 Medium

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

4.3 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:N/AC:M/Au:N/C:N/I:N/A:P

0.003 Low

EPSS

Percentile

67.3%

JSON

The bmp_read_info_header function in bin/jp2/convertbmp.c in OpenJPEG 2.2.0
does not reject headers with a zero biBitCount, which allows remote
attackers to cause a denial of service (memory allocation failure) in the
opj_image_create function in lib/openjp2/image.c, related to the
opj_aligned_alloc_n function in opj_malloc.c.

Bugs

<https://github.com/uclouvain/openjpeg/issues/983>

Notes

Author	Note
ccdm94	openjpeg is not affected by this issue since the variable which was not checked for value 0 is checked in the 1.x versions. The code was refactored in versions 2.x, and this check was removed, causing the vulnerability. In versions 1.x, variable Info_h.biBitCount is checked for values 24 and 8, and if not equal to one of them, the converter returns an error message instead of processing the image file given as input. In versions 1.x of openjpeg, the function that contains similar code to the vulnerable one in versions 2.x can be found in file convert.c. The reproducer does not cause the memory allocation failure error in versions 1.x.

Author

Note

ccdm94

openjpeg is not affected by this issue since the variable which was not checked for value 0 is checked in the 1.x versions. The code was refactored in versions 2.x, and this check was removed, causing the vulnerability. In versions 1.x, variable Info_h.biBitCount is checked for values 24 and 8, and if not equal to one of them, the converter returns an error message instead of processing the image file given as input. In versions 1.x of openjpeg, the function that contains similar code to the vulnerable one in versions 2.x can be found in file convert.c. The reproducer does not cause the memory allocation failure error in versions 1.x.

OSVersionArchitecturePackageVersionFilename
ubuntu18.04noarchopenjpeg2< 2.3.0-1UNKNOWN
ubuntu16.04noarchopenjpeg2< 2.1.2-1.1+deb9u6ubuntu0.1~esm1UNKNOWN