Signature Detail
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Short Name |
DNS:OVERFLOW:GNU-C-GLIBC |
|---|---|
Severity |
Major |
Recommended |
Yes |
Recommended Action |
Drop |
Category |
DNS |
Keywords |
GNU C Library glibc getanswer_r Buffer Overflow |
Release Date |
2015/05/27 |
Update Number |
2499 |
Supported Platforms |
idp-4.0+, isg-3.0+, j-series-9.5+, mx-11.4+, srx-12.1+, srx-branch-12.1+, vmx-17.4+, vsrx-12.1+, vsrx3bsd-18.2+ |
DNS: GNU C Library glibc getanswer_r Buffer Overflow
This signature detects attempts to exploit a code execution vulnerability in GNU C Library. A successful attack can lead to a buffer overflow and arbitrary remote code execution within the context of the targeted daemon.
Extended Description
Buffer overflow in the gethostbyname_r and other unspecified NSS functions in the GNU C Library (aka glibc or libc6) before 2.22 allows context-dependent attackers to cause a denial of service (crash) or execute arbitrary code via a crafted DNS response, which triggers a call with a misaligned buffer.
Affected Products
- Canonical ubuntu_linux 12.04
- Canonical ubuntu_linux 14.04
- Canonical ubuntu_linux 15.04
- Debian debian_linux 7.0
- Gnu glibc 2.21
- Suse linux_enterprise_debuginfo 11
- Suse linux_enterprise_desktop 11
- Suse linux_enterprise_server 11
References
- CVE: CVE-2015-1781