Entreprise française de cybersécurité depuis 2004
☎ 03 60 47 09 81 - info@securiteinfo.com
☎ 03 60 47 09 81 - info@securiteinfo.com
%20grsecurity%20grsecurity-3.1-4.9.24-201704252333.patch%20(latest%20official%20version%20available%20to%20the%20public)%20v4.9.74-unofficial_grsec%20(latest%20unofficial%20version%20available%20to%20the%20public)%20&color=brightgreen)
An exploitable vulnerability exists in the grsecurity PaX patch for the function read_kmem, in PaX from version pax-linux-4.9.8-test1 to 4.9.24-test7, grsecurity official from version grsecurity-3.1-4.9.8-201702060653 to grsecurity-3.1-4.9.24-201704252333, grsecurity unofficial from version v4.9.25-unofficialgrsec to v4.9.74-unofficialgrsec. PaX adds a temp buffer to the read_kmem function, which is never freed when an invalid address is supplied. This results in a memory leakage that can lead to a crash of the system. An attacker needs to induce a read to /dev/kmem using an invalid address to exploit this vulnerability.
- https://talosintelligence.com/vulnerability_reports/TALOS-2019-0784
No PoCs found on GitHub currently.