CVE-2017-0898
Published: August 31, 2023Last modified: August 31, 2023
Description
Ruby before 2.4.2, 2.3.5, and 2.2.8 is vulnerable to a malicious format string which contains a precious specifier (*) with a huge minus value. Such situation can lead to a buffer overrun, resulting in a heap memory corruption or an information disclosure from the heap.
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 9.1 |
| Attack Vector | NETWORK |
| Attack complexity | LOW |
| Privileges required | NONE |
| User interaction | NONE |
| Scope | UNCHANGED |
| Confidentiality | HIGH |
| Integrity impact | NONE |
| Availability impact | HIGH |
| Vector | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H |
Status
| Product | Release | Package | Status |
|---|---|---|---|
| Alpaquita Linux | 23 LTS | ruby | Not affected (3.1.4-r0) |
| Stream | ruby | Not affected (3.2.2-r0) |
References
- http://www.securityfocus.com/bid/100862
- http://www.securitytracker.com/id/1039363
- https://access.redhat.com/errata/RHSA-2017:3485
- https://access.redhat.com/errata/RHSA-2018:0378
- https://access.redhat.com/errata/RHSA-2018:0583
- https://access.redhat.com/errata/RHSA-2018:0585
- https://github.com/mruby/mruby/issues/3722
- https://hackerone.com/reports/212241
- https://lists.debian.org/debian-lts-announce/2018/07/msg00012.html
- https://security.gentoo.org/glsa/201710-18
- https://usn.ubuntu.com/3685-1/
- https://www.debian.org/security/2017/dsa-4031
- https://www.ruby-lang.org/en/news/2017/09/14/sprintf-buffer-underrun-cve-2017-0898/