CVE-2018-7589 - Double Free

Severity

68%

Complexity

86%

Confidentiality

106%

An issue was discovered in CImg v.220. A double free in load_bmp in CImg.h occurs when loading a crafted bmp image.

An issue was discovered in CImg v.220. A double free in load_bmp in CImg.h occurs when loading a crafted bmp image.

CVSS 3.0 Base Score 7.8. CVSS Attack Vector: local. CVSS Attack Complexity: low. CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H).

CVSS 2.0 Base Score 6.8. CVSS Attack Vector: network. CVSS Attack Complexity: medium. CVSS Vector: (AV:N/AC:M/Au:N/C:P/I:P/A:P).

Demo Examples

Double Free

CWE-415

Double Free

CWE-415

While contrived, this code should be exploitable on Linux distributions which do not ship with heap-chunk check summing turned on.


               
}
free(buf1R2);

Overview

First reported 6 years ago

2018-03-01 22:29:00

Last updated 5 years ago

2019-06-26 23:15:00

Affected Software

CImg .220

.220

References

https://github.com/dtschump/CImg/issues/184

Third Party Advisory

https://github.com/xiaoqx/pocs/tree/master/cimg

Exploit, Third Party Advisory

[debian-lts-announce] 20190928 [SECURITY] [DLA 1934-1] cimg security update

USN-4039-1

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