CVE-2017-12132 describes a vulnerability in the GNU C Library (glibc) DNS stub resolver, affecting versions prior to 2.26, where enabled EDNS support can cause it to request large UDP responses from name servers. This behavior simplifies off-path DNS spoofing attacks by increasing the likelihood of IP fragmentation. The vulnerability has a CVSS score of 5.9 (MEDIUM), indicating a network-based attack with high attack complexity and a potential for high impact on integrity, though without confidentiality or availability impact. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage, suggesting it is not widely targeted.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
<= 2.25CPE matchmatch criteria | cpe:2.3:a:gnu:glibc:*:*:*:*:*:*:*:* |
CVSS version used by this source: 3.0
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.2 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.