OpenJPEG 2.3.0 BMP File openjp2/j2k.c opj_j2k_setup_encoder integer overflow

Summaryinfo

A vulnerability marked as critical has been reported in OpenJPEG 2.3.0. This affects the function opj_j2k_setup_encoder of the file openjp2/j2k.c of the component BMP File Handler. Performing a manipulation results in integer overflow. This vulnerability was named CVE-2018-5785. The attack may be initiated remotely. There is no available exploit. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability was found in OpenJPEG 2.3.0 (Image Processing Software). It has been classified as critical. This affects the function opj_j2k_setup_encoder of the file openjp2/j2k.c of the component BMP File Handler. The manipulation with an unknown input leads to a integer overflow vulnerability. CWE is classifying the issue as CWE-190. The product performs a calculation that can produce an integer overflow or wraparound, when the logic assumes that the resulting value will always be larger than the original value. This can introduce other weaknesses when the calculation is used for resource management or execution control. This is going to have an impact on availability. The summary by CVE is:

In OpenJPEG 2.3.0, there is an integer overflow caused by an out-of-bounds left shift in the opj_j2k_setup_encoder function (openjp2/j2k.c). Remote attackers could leverage this vulnerability to cause a denial of service via a crafted bmp file.

The bug was discovered 01/19/2018. The weakness was presented 01/19/2018 (Website). It is possible to read the advisory at github.com. This vulnerability is uniquely identified as CVE-2018-5785 since 01/19/2018. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Technical details of the vulnerability are known, but there is no available exploit.

The vulnerability scanner Nessus provides a plugin with the ID 120644 (Fedora 29 : mingw-openjpeg2 / openjpeg2 (2018-9954b282ec)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Fedora Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 176631 (Debian Security Update for openjpeg2 (DSA 4405-1)).

Upgrading eliminates this vulnerability. A possible mitigation has been published 10 months after the disclosure of the vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (120644). See VDB-110369, VDB-112829, VDB-121978 and VDB-125160 for similar entries. Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Type

• Image Processing Software

Name

• OpenJPEG

Version

• 2.3.0

License

• open-source

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