CVE-2013-7423
medium
CVSS v3
—
CVSS v4 NEW
—
VIR risk
5.0
Description
The send_dg function in resolv/res_send.c in GNU C Library (aka glibc or libc6) before 2.20 does not properly reuse file descriptors, which allows remote attackers to send DNS queries to unintended locations via a large number of requests that trigger a call to the getaddrinfo function.
Predictions
Exploit likelihood
20%
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 withsource_tier=community-verified.
OS impact
| OS | Version | Status | Fixed in |
|---|---|---|---|
| sles | affected | | |
| debian | bookworm | fixed | 2.19-1 |
| debian | bullseye | fixed | 2.19-1 |
| debian | forky | fixed | 2.19-1 |
| debian | sid | fixed | 2.19-1 |
| debian | trixie | fixed | 2.19-1 |
| ubuntu | 10.04 | affected | |
| ubuntu | 12.04 | affected | |
| ubuntu | 14.04 | affected | |
| ubuntu | 14.10 | affected | |
| suse | 13.1 | affected | |
| suse | 13.2 | affected | |
Application impact
| Vendor | Product | Versions | Fixed |
|---|---|---|---|
| gnu | glibc | {"endExcluding":"2.20"} | 2.20 |
References
- https://www.suse.com/security/cve/CVE-2013-7423.html
- http://lists.opensuse.org/opensuse-updates/2015-02/msg00089.html
- http://packetstormsecurity.com/files/164014/Moxa-Command-Injection-Cross-Site-Scripting-Vulnerable-Software.html
- http://rhn.redhat.com/errata/RHSA-2015-0863.html
- http://seclists.org/fulldisclosure/2021/Sep/0
- http://www.openwall.com/lists/oss-security/2015/01/28/20
- http://www.securityfocus.com/bid/72844
- http://www.ubuntu.com/usn/USN-2519-1
- https://access.redhat.com/errata/RHSA-2016:1207
- https://github.com/golang/go/issues/6336
- https://security.gentoo.org/glsa/201602-02
- https://sourceware.org/bugzilla/show_bug.cgi?id=15946
- https://security-tracker.debian.org/tracker/CVE-2013-7423
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.