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CVE-2013-7423

Publication date 24 February 2015

Last updated 24 July 2024

Ubuntu priority

Medium

Why this priority?

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.

Read the notes from the security team

Status

Package Ubuntu Release Status
eglibc 14.10 utopic Not in release
14.04 LTS trusty
Fixed 2.19-0ubuntu6.6
12.04 LTS precise
Fixed 2.15-0ubuntu10.11
10.04 LTS lucid
Fixed 2.11.1-0ubuntu7.21
glibc 14.10 utopic
Not affected
14.04 LTS trusty Not in release
12.04 LTS precise Not in release
10.04 LTS lucid Not in release

Notes

mdeslaur

fixed by any/cvs-resolv-reuse-fd.diff in utopic

Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package Patch details
glibc

References

Related Ubuntu Security Notices (USN)

    • USN-2519-1
    • GNU C Library vulnerabilities
    • 26 February 2015

Other references