CVE-2017-0898

critical

Published 2017-09-15 · Modified 2026-05-13

💬 Discuss on Community ✚ Propose mitigation

CVSS v3

9.1

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H

CVSS v4 NEW

—

not yet in upstream

VIR risk

9.1

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.

Predictions

Exploit likelihood

94%

Patch ETA

—

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

No mitigations published for this CVE yet.

The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.

✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here with source_tier=community-verified.

OS impact

OS	Version	Status	Fixed in
sles		affected

Application impact

Vendor	Product	Versions
ruby-lang	ruby	`2.2.0`
ruby-lang	ruby	`2.2.1`
ruby-lang	ruby	`2.2.2`
ruby-lang	ruby	`2.2.3`
ruby-lang	ruby	`2.2.4`
ruby-lang	ruby	`2.2.5`
ruby-lang	ruby	`2.2.6`
ruby-lang	ruby	`2.2.7`
ruby-lang	ruby	`2.3.0`
ruby-lang	ruby	`2.3.1`
ruby-lang	ruby	`2.3.2`
ruby-lang	ruby	`2.3.3`
ruby-lang	ruby	`2.3.4`
ruby-lang	ruby	`2.4.0`
ruby-lang	ruby	`2.4.1`

References

CWEs

CWE-134

Community-verified mitigations for this CVE will appear above when contributors publish them.

Verify integrity in audit chain (admin only). AS-IS.