CVE-2017-18367
What it is
libseccomp-golang 0.9.0 and earlier incorrectly generates BPFs that OR multiple arguments rather than ANDing them. A process running under a restrictive seccomp filter that specified multiple syscall arguments could bypass intended access restrictions by specifying a single matching argument.
At a glance
- Exploitability
- Can be exploited over the network without logging in. High risk of data tampering.
- Exploit odds
- 2.4% chance of exploitation in the next 30 days (EPSS).
- Fix
- A patch, advisory or fixed version is referenced. Upgrade or apply it.
Timeline
- PublishedDisclosed publicly on CVE.org and NVD
- Last updatedMost recent change to the record
Why it ranks here
- Exploited in the wild: no, CISA does not list it.
- Exploit odds: 2.4% in the next 30 days (EPSS).
- Severity: 7.5 HIGH (CVSS).
- Fix: a patch or advisory is linked.
Details
- Published
- Last modified
- Exploit probability
- 2.4% · EPSS, next 30 days
- Weakness
- CWE-20 · Improper input validation
- Record status
- Modified
Affected
- libseccomp-golang Project libseccomp-golang ≤ 0.9.0
Attack profile CVSS 3.0 · 7.5
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- None
- Integrity
- High
- Availability
- None
Raw vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Is it in your code?
Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.
Read https://cve-list.com/agent/cve/CVE-2017-18367.md and follow it. Check whether this project is affected by CVE-2017-18367. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.
Fix and advisories
- http://www.openwall.com/lists/oss-security/2019/04/25/6
- https://github.com/seccomp/libseccomp-golang/commit/06e7a29f36a34b8cf419aeb87b979ee508e58f9e
- https://github.com/seccomp/libseccomp-golang/issues/22
- http://www.openwall.com/lists/oss-security/2019/04/25/6
- https://github.com/seccomp/libseccomp-golang/commit/06e7a29f36a34b8cf419aeb87b979ee508e58f9e
- https://github.com/seccomp/libseccomp-golang/issues/22
References
- http://www.openwall.com/lists/oss-security/2019/04/25/6
- https://access.redhat.com/errata/RHSA-2019:4087
- https://access.redhat.com/errata/RHSA-2019:4090
- https://github.com/seccomp/libseccomp-golang/commit/06e7a29f36a34b8cf419aeb87b979ee508e58f9e
- https://github.com/seccomp/libseccomp-golang/issues/22
- https://lists.debian.org/debian-lts-announce/2020/08/msg00016.html
- https://usn.ubuntu.com/4574-1/
- http://www.openwall.com/lists/oss-security/2019/04/25/6
- https://access.redhat.com/errata/RHSA-2019:4087
- https://access.redhat.com/errata/RHSA-2019:4090
- https://github.com/seccomp/libseccomp-golang/commit/06e7a29f36a34b8cf419aeb87b979ee508e58f9e
- https://github.com/seccomp/libseccomp-golang/issues/22
- https://lists.debian.org/debian-lts-announce/2020/08/msg00016.html
- https://usn.ubuntu.com/4574-1/