Bug#875345: opencv: CVE-2017-12864: Integer overflow in ReadNumber

[Salvatore Bonaccorso]

Source: opencv
Version: 2.4.9.1+dfsg-1
Severity: important
Tags: security upstream
Forwarded: https://github.com/opencv/opencv/issues/9372

Hi,

the following vulnerability was published for opencv.

CVE-2017-12864[0]:
| In opencv/modules/imgcodecs/src/grfmt_pxm.cpp, function ReadNumber did
| not checkout the input length, which lead to integer overflow. If the
| image is from remote, may lead to remote code execution or denial of
| service. This affects Opencv 3.3 and earlier.

If you fix the vulnerability please also make sure to include the
CVE (Common Vulnerabilities & Exposures) id in your changelog entry.

For further information see:

[0] https://security-tracker.debian.org/tracker/CVE-2017-12864
    https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-12864
[1] https://github.com/opencv/opencv/issues/9372

Regards,
Salvatore