Incorrect calculation in libseccomp (Alpine package)



Risk Low
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2019-9893
CWE-ID CWE-682
Exploitation vector Network
Public exploit N/A
Vulnerable software
 libseccomp (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) Incorrect calculation

EUVDB-ID: #VU18322

Risk: Low

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

CVE-ID: CVE-2019-9893

CWE-ID: CWE-682 - Incorrect Calculation

Exploit availability: No

Description

The vulnerability allows a local user to bypass certain security restrictions.

The vulnerability exists due to incorrect 64-bit syscall argument comparison when using arithmetic operators, such as LT, GT, LE, or GE. A local user can bypass seccomp filters and gain elevated privileges on the system.

Mitigation

Install update from vendor's website.

Vulnerable software versions

libseccomp (Alpine package): 2.3.3-r1

libseccomp (Alpine package):

CPE2.3 External links

https://git.alpinelinux.org/aports/commit/?id=bc5bdeaee9133ca6c5ef9268c842fc09e5bb573e
https://git.alpinelinux.org/aports/commit/?id=f94bff9e1a79ee759e1f036f8acc02f63fcff6a8
https://git.alpinelinux.org/aports/commit/?id=9092d9ca814a141dbcee7a97070ff4bd93f78e10
https://git.alpinelinux.org/aports/commit/?id=aa251917a923821de5ed0a20dabdb1a44f2adc00
https://git.alpinelinux.org/aports/commit/?id=d7288e99061f0ea9be587cba5712912f10de33f9


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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