CVE-2019-13105 - Double Free

Severity

68%

Complexity

86%

Confidentiality

106%

Das U-Boot versions 2019.07-rc1 through 2019.07-rc4 can double-free a cached block of data when listing files in a crafted ext4 filesystem.

Das U-Boot versions 2019.07-rc1 through 2019.07-rc4 can double-free a cached block of data when listing files in a crafted ext4 filesystem.

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

Type

Denx

First reported 5 years ago

2019-08-06 20:15:00

Last updated 5 years ago

2019-08-13 19:40:00

Affected Software

Denx U-Boot 2019.07 Release Candidate 1

2019.07

Denx U-Boot 2019.07 Release Candidate 2

2019.07

Denx U-Boot 2019.07 Release Candidate 3

2019.07

Denx U-boot 2019.07 Release Candidate 4

2019.07

References

https://gist.github.com/deephooloovoo/d91b81a1674b4750e662dfae93804d75

Third Party Advisory

https://github.com/u-boot/u-boot/commits/master

Patch, Third Party Advisory

https://lists.denx.de/pipermail/u-boot/2019-July/375513.html

Mailing List, Patch, Vendor Advisory

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