CVE-2019-19126Low· 3.3▾ SunlitOn the x86-64 architecture, the GNU C Library (aka glibc) before 2.31 fails to ignore the LD_PREFER_MAP_32BIT_EXEC environment variable during program execution after a security transition, allowing local attackers to restrict the possib…
▾ Sunlit zone — Low / medium · no exploitation signal
impact 18.2 · likelihood 0.1 · exploitation 0
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Exploit-prediction probability, daily snapshots since Oct 14.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via NVD
Last analysed / modified upstream
0.4%
0.4% → 0.4%
On the x86-64 architecture, the GNU C Library (aka glibc) before 2.31 fails to ignore the LD_PREFER_MAP_32BIT_EXEC environment variable during program execution after a security transition, allowing local attackers to restrict the possible mapping addresses for loaded libraries and thus bypass ASLR for a setuid program.
glibc < 2.31ubuntu_linux = 16.04ubuntu_linux = 18.04ubuntu_linux = 19.10fedora = 30fedora = 31debian_linux = 10.0Upgrade past the affected range:
glibc 2.31Connected by shared product, vendor, weakness, or advisory.
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