Buffer over-read in clamav (Alpine package)



Risk Low
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2017-12378
CWE-ID CWE-126
Exploitation vector Network
Public exploit N/A
Vulnerable software
 clamav (Alpine package)
Operating systems & Components / Operating system package or component

Vendor Alpine Linux Development Team

Security Bulletin

This security bulletin contains one low risk vulnerability.

1) Buffer over-read

EUVDB-ID: #VU10316

Risk: Low

CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2017-12378

CWE-ID: CWE-126 - Buffer over-read

Exploit availability: No

Description

The vulnerability allows a remote attacker to cause DoS condition on the target system.

The weakness exists due to input validation checking mechanisms of .tar (Tape Archive) files. A remote attacker can send a specially crafted input, trigger checksum buffer over-read condition and cause the service to crash.

Mitigation

Install update from vendor's website.

Vulnerable software versions

clamav (Alpine package): 0.97.3-r0 - 0.100.0-r2

CPE2.3 External links

https://git.alpinelinux.org/aports/commit/?id=540c3721c297fd86200a7518c76e7f8a5b51a83b
https://git.alpinelinux.org/aports/commit/?id=90552e261c77a65b5d25b9f935af4236ea1e08c1
https://git.alpinelinux.org/aports/commit/?id=3b5a0401336d78fb0ee7f8579876034537911de4


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.



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