[Secure-testing-team] Bug#870650: glibc: CVE-2017-12132

[Salvatore Bonaccorso]

Source: glibc
Version: 2.24-11
Severity: important
Tags: upstream security patch fixed-upstream
Forwarded: https://sourceware.org/bugzilla/show_bug.cgi?id=21361

Hi,

the following vulnerability was published for glibc.

CVE-2017-12132[0]:
| The DNS stub resolver in the GNU C Library (aka glibc or libc6) before
| version 2.26, when EDNS support is enabled, will solicit large UDP
| responses from name servers, potentially simplifying off-path DNS
| spoofing attacks due to IP fragmentation.

If you fix the vulnerability please also make sure to include the
CVE (Common Vulnerabilities & Exposures) id in your changelog entry.

For further information see:

[0] https://security-tracker.debian.org/tracker/CVE-2017-12132
    https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-12132
[1] https://sourceware.org/bugzilla/show_bug.cgi?id=21361

Please adjust the affected versions in the BTS as needed.

Regards,
Salvatore