CVE-2017-15671

medium

Published 2017-10-20 · Modified 2026-05-13

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CVSS v3

5.9

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

CVSS v4 NEW

—

not yet in upstream

VIR risk

5.9

Description

The glob function in glob.c in the GNU C Library (aka glibc or libc6) before 2.27, when invoked with GLOB_TILDE, could skip freeing allocated memory when processing the ~ operator with a long user name, potentially leading to a denial of service (memory leak).

Predictions

Exploit likelihood

69%

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
arch		fixed	`2.26-9`
sles		affected
debian	bookworm	fixed	`2.25-3`
debian	bullseye	fixed	`2.25-3`
debian	forky	fixed	`2.25-3`
debian	sid	fixed	`2.25-3`
debian	trixie	fixed	`2.25-3`

Application impact

Vendor	Product	Versions	Fixed
gnu	glibc	`{"endIncluding":"2.26"}`

References

CWEs

CWE-772

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

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