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CVE-2013-7423
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,…
Medium5.0EPSS 5.8%
- Published
- Updated
- Reserved
- Assigned by
- mitre
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.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 2.0 | Medium5.0 | AV:N/AC:L/Au:N/C:N/I:P/A:N |
- EPSS (exploitation in 30 days)
- 5.8% · top 6.8% of all CVEs (5 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.0.
Weakness
Affected products
n/a
- affected n/a
References (11)
- https://github.com/golang/go/issues/6336 (opens in a new tab)x_refsource_CONFIRMx_transferred
- [oss-security] 20150128 Re: the other glibc issue (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- openSUSE-SU-2015:0351 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
- GLSA-201602-02 (opens in a new tab)vendor-advisoryx_refsource_GENTOOx_transferred
- https://sourceware.org/bugzilla/show_bug.cgi?id=15946 (opens in a new tab)x_refsource_CONFIRMx_transferred
- USN-2519-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- RHSA-2015:0863 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- 72844 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- RHSA-2016:1207 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- 20210901 SEC Consult SA-20210901-0 :: Multiple vulnerabilities in MOXA devices (opens in a new tab)mailing-listx_refsource_FULLDISCx_transferred
- http://packetstormsecurity.com/files/164014/Moxa-Command-Injection-Cross-Site-Scripting-Vulnerable-Software.html (opens in a new tab)x_refsource_MISCx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
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[](https://trackcve.app/cve/CVE-2013-7423)Record last updated .