CVE-2014-8121
Description
DB_LOOKUP in nss_files/files-XXX.c in the Name Service Switch (NSS) in GNU C Library (aka glibc or libc6) 2.21 and earlier does not properly check if a file is open, which allows remote attackers to cause a denial of service (infinite loop) by performing a look-up on a database while iterating over it, which triggers the file pointer to be reset.
Predictions
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 withsource_tier=community-verified.
OS impact
| OS | Version | Status | Fixed in |
|---|---|---|---|
| debian | bookworm | fixed | 2.21-1 |
| debian | bullseye | fixed | 2.21-1 |
| debian | forky | fixed | 2.21-1 |
| debian | sid | fixed | 2.21-1 |
| debian | trixie | fixed | 2.21-1 |
| suse | 11.0 | affected | |
| ubuntu | 12.04 | affected | |
| ubuntu | 14.04 | affected | |
| ubuntu | 15.10 | affected | |
Application impact
| Vendor | Product | Versions | Fixed |
|---|---|---|---|
| gnu | glibc | {"endIncluding":"2.21"} | |
References
- http://lists.opensuse.org/opensuse-security-announce/2015-08/msg00019.html
- http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00036.html
- http://rhn.redhat.com/errata/RHSA-2015-0327.html
- http://www.debian.org/security/2016/dsa-3480
- http://www.securityfocus.com/bid/73038
- http://www.ubuntu.com/usn/USN-2985-1
- http://www.ubuntu.com/usn/USN-2985-2
- https://bugzilla.redhat.com/show_bug.cgi?id=1165192
- https://security.gentoo.org/glsa/201602-02
- https://sourceware.org/ml/libc-alpha/2015-02/msg00617.html
- https://security-tracker.debian.org/tracker/CVE-2014-8121
CWEs
CWE-17
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.