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+ |
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.
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.