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kernel: use-after-free in l2cap_connect and l2cap_le_connect_req in net/bluetooth/l2cap_core.c

🗓️ 08 Aug 2023 07:58:32Reported by RedHatType 
redhat
 redhat
🔗 access.redhat.com👁 5 Views

Use-after-free in L2CAP connect functions enables Bluetooth-range attackers to run code and leak kernel memory.

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OSOS VersionArchitecturePackagePackage VersionFilename
Red Hat Enterprise Linux8x86_64kernel-rt0:4.18.0-477.21.1.rt7.284.el8_8kernel-rt-0:4.18.0-477.21.1.rt7.284.el8_8.x86_64.rpm
Red Hat Enterprise Linux8x86_64kernel-rt-core0:4.18.0-477.21.1.rt7.284.el8_8kernel-rt-core-0:4.18.0-477.21.1.rt7.284.el8_8.x86_64.rpm
Red Hat Enterprise Linux8x86_64kernel-rt-debug0:4.18.0-477.21.1.rt7.284.el8_8kernel-rt-debug-0:4.18.0-477.21.1.rt7.284.el8_8.x86_64.rpm
Red Hat Enterprise Linux8x86_64kernel-rt-debug-core0:4.18.0-477.21.1.rt7.284.el8_8kernel-rt-debug-core-0:4.18.0-477.21.1.rt7.284.el8_8.x86_64.rpm
Red Hat Enterprise Linux8x86_64kernel-rt-debug-debuginfo0:4.18.0-477.21.1.rt7.284.el8_8kernel-rt-debug-debuginfo-0:4.18.0-477.21.1.rt7.284.el8_8.x86_64.rpm
Red Hat Enterprise Linux8x86_64kernel-rt-debug-devel0:4.18.0-477.21.1.rt7.284.el8_8kernel-rt-debug-devel-0:4.18.0-477.21.1.rt7.284.el8_8.x86_64.rpm
Red Hat Enterprise Linux8x86_64kernel-rt-debug-kvm0:4.18.0-477.21.1.rt7.284.el8_8kernel-rt-debug-kvm-0:4.18.0-477.21.1.rt7.284.el8_8.x86_64.rpm
Red Hat Enterprise Linux8x86_64kernel-rt-debug-modules0:4.18.0-477.21.1.rt7.284.el8_8kernel-rt-debug-modules-0:4.18.0-477.21.1.rt7.284.el8_8.x86_64.rpm
Red Hat Enterprise Linux8x86_64kernel-rt-debug-modules-extra0:4.18.0-477.21.1.rt7.284.el8_8kernel-rt-debug-modules-extra-0:4.18.0-477.21.1.rt7.284.el8_8.x86_64.rpm
Red Hat Enterprise Linux8x86_64kernel-rt-debuginfo0:4.18.0-477.21.1.rt7.284.el8_8kernel-rt-debuginfo-0:4.18.0-477.21.1.rt7.284.el8_8.x86_64.rpm
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28 Jun 2026 12:40Current
6.8Medium risk
Vulners AI Score6.8
CVSS 3.18 - 8.8
EPSS0.02014
SSVC
5