ISOMAN

CVE

CVE-2019-19126

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.

Severity
LOW
CVSS
3.3
Published
Modified

Linked Releases

DistributionReleaseStatusEvidence
Ubuntu18.04.6 amd64 desktopunknownsource
Ubuntu18.04.6 amd64 live-serverunknownsource

References

  1. https://lists.debian.org/debian-lts-announce/2022/10/msg00021.html
  2. https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4FQ5LC6JOYSOYFPRUZ4S45KL6IP3RPPZ/
  3. https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZFJ5E7NWOL6ROE5QVICHKIOUGCPFJVUH/
  4. https://sourceware.org/bugzilla/show_bug.cgi?id=25204
  5. https://usn.ubuntu.com/4416-1/
  6. https://lists.debian.org/debian-lts-announce/2022/10/msg00021.html
  7. https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4FQ5LC6JOYSOYFPRUZ4S45KL6IP3RPPZ/
  8. https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZFJ5E7NWOL6ROE5QVICHKIOUGCPFJVUH/
  9. https://sourceware.org/bugzilla/show_bug.cgi?id=25204
  10. https://usn.ubuntu.com/4416-1/