[Secure-testing-team] Bug#878767: radare2: CVE-2017-15368: Stack buffer overflow in r_hex_bin2str()

[Salvatore Bonaccorso]

Source: radare2
Version: 2.0.0+dfsg-1
Severity: important
Tags: patch security upstream
Forwarded: https://github.com/radare/radare2/issues/8673

Hi,

the following vulnerability was published for radare2.

CVE-2017-15368[0]:
| The wasm_dis function in libr/asm/arch/wasm/wasm.c in radare2 2.0.0
| allows remote attackers to cause a denial of service (stack-based
| buffer over-read and application crash) or possibly have unspecified
| other impact via a crafted WASM file that triggers an incorrect
| r_hex_bin2str call.

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-2017-15368
    https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-15368
[1] https://github.com/radare/radare2/issues/8673

Please adjust the affected versions in the BTS as needed. Please
confirm, but I think the issue has only been introduced in 2.0.0
release and as such only should affect the newly uploaded version in
unstable.

Regards,
Salvatore