ID CVE-2020-25662
Summary A Red Hat only CVE-2020-12352 regression issue was found in the way the Linux kernel's Bluetooth stack implementation handled the initialization of stack memory when handling certain AMP packets. This flaw allows a remote attacker in an adjacent range to leak small portions of stack memory on the system by sending specially crafted AMP packets. The highest threat from this vulnerability is to data confidentiality.
References
Vulnerable Configurations
  • cpe:2.3:o:redhat:enterprise_linux:8.3:*:*:*:*:*:*:*
    cpe:2.3:o:redhat:enterprise_linux:8.3:*:*:*:*:*:*:*
CVSS
Base: 3.3 (as of 19-10-2021 - 13:49)
Impact:
Exploitability:
CWE CWE-665
CAPEC
  • Leveraging Race Conditions
    The adversary targets a race condition occurring when multiple processes access and manipulate the same resource concurrently, and the outcome of the execution depends on the particular order in which the access takes place. The adversary can leverage a race condition by "running the race", modifying the resource and modifying the normal execution flow. For instance, a race condition can occur while accessing a file: the adversary can trick the system by replacing the original file with his version and cause the system to read the malicious file.
  • Leveraging Time-of-Check and Time-of-Use (TOCTOU) Race Conditions
    This attack targets a race condition occurring between the time of check (state) for a resource and the time of use of a resource. A typical example is file access. The adversary can leverage a file access race condition by "running the race", meaning that they would modify the resource between the first time the target program accesses the file and the time the target program uses the file. During that period of time, the adversary could replace or modify the file, causing the application to behave unexpectedly.
Access
VectorComplexityAuthentication
ADJACENT_NETWORK LOW NONE
Impact
ConfidentialityIntegrityAvailability
PARTIAL NONE NONE
cvss-vector via4 AV:A/AC:L/Au:N/C:P/I:N/A:N
redhat via4
advisories
  • bugzilla
    id 1891484
    title CVE-2020-25662 kernel: Red Hat only CVE-2020-12352 regression
    oval
    OR
    • comment Red Hat Enterprise Linux must be installed
      oval oval:com.redhat.rhba:tst:20070304026
    • AND
      • comment Red Hat Enterprise Linux 8 is installed
        oval oval:com.redhat.rhba:tst:20193384074
      • OR
        • comment kernel earlier than 0:4.18.0-240.1.1.el8_3 is currently running
          oval oval:com.redhat.rhsa:tst:20204685049
        • comment kernel earlier than 0:4.18.0-240.1.1.el8_3 is set to boot up on next boot
          oval oval:com.redhat.rhsa:tst:20204685050
      • OR
        • AND
          • comment bpftool is earlier than 0:4.18.0-240.1.1.el8_3
            oval oval:com.redhat.rhsa:tst:20204685001
          • comment bpftool is signed with Red Hat redhatrelease2 key
            oval oval:com.redhat.rhsa:tst:20183083002
        • AND
          • comment kernel is earlier than 0:4.18.0-240.1.1.el8_3
            oval oval:com.redhat.rhsa:tst:20204685003
          • comment kernel is signed with Red Hat redhatrelease2 key
            oval oval:com.redhat.rhsa:tst:20100842002
        • AND
          • comment kernel-abi-whitelists is earlier than 0:4.18.0-240.1.1.el8_3
            oval oval:com.redhat.rhsa:tst:20204685005
          • comment kernel-abi-whitelists is signed with Red Hat redhatrelease2 key
            oval oval:com.redhat.rhsa:tst:20131645004
        • AND
          • comment kernel-core is earlier than 0:4.18.0-240.1.1.el8_3
            oval oval:com.redhat.rhsa:tst:20204685007
          • comment kernel-core is signed with Red Hat redhatrelease2 key
            oval oval:com.redhat.rhsa:tst:20191167008
        • AND
          • comment kernel-cross-headers is earlier than 0:4.18.0-240.1.1.el8_3
            oval oval:com.redhat.rhsa:tst:20204685009
          • comment kernel-cross-headers is signed with Red Hat redhatrelease2 key
            oval oval:com.redhat.rhsa:tst:20191167010
        • AND
          • comment kernel-debug is earlier than 0:4.18.0-240.1.1.el8_3
            oval oval:com.redhat.rhsa:tst:20204685011
          • comment kernel-debug is signed with Red Hat redhatrelease2 key
            oval oval:com.redhat.rhsa:tst:20100842006
        • AND
          • comment kernel-debug-core is earlier than 0:4.18.0-240.1.1.el8_3
            oval oval:com.redhat.rhsa:tst:20204685013
          • comment kernel-debug-core is signed with Red Hat redhatrelease2 key
            oval oval:com.redhat.rhsa:tst:20191167014
        • AND
          • comment kernel-debug-devel is earlier than 0:4.18.0-240.1.1.el8_3
            oval oval:com.redhat.rhsa:tst:20204685015
          • comment kernel-debug-devel is signed with Red Hat redhatrelease2 key
            oval oval:com.redhat.rhsa:tst:20100842008
        • AND
          • comment kernel-debug-modules is earlier than 0:4.18.0-240.1.1.el8_3
            oval oval:com.redhat.rhsa:tst:20204685017
          • comment kernel-debug-modules is signed with Red Hat redhatrelease2 key
            oval oval:com.redhat.rhsa:tst:20191167018
        • AND
          • comment kernel-debug-modules-extra is earlier than 0:4.18.0-240.1.1.el8_3
            oval oval:com.redhat.rhsa:tst:20204685019
          • comment kernel-debug-modules-extra is signed with Red Hat redhatrelease2 key
            oval oval:com.redhat.rhsa:tst:20191167020
        • AND
          • comment kernel-devel is earlier than 0:4.18.0-240.1.1.el8_3
            oval oval:com.redhat.rhsa:tst:20204685021
          • comment kernel-devel is signed with Red Hat redhatrelease2 key
            oval oval:com.redhat.rhsa:tst:20100842010
        • AND
          • comment kernel-doc is earlier than 0:4.18.0-240.1.1.el8_3
            oval oval:com.redhat.rhsa:tst:20204685023
          • comment kernel-doc is signed with Red Hat redhatrelease2 key
            oval oval:com.redhat.rhsa:tst:20100842012
        • AND
          • comment kernel-modules is earlier than 0:4.18.0-240.1.1.el8_3
            oval oval:com.redhat.rhsa:tst:20204685025
          • comment kernel-modules is signed with Red Hat redhatrelease2 key
            oval oval:com.redhat.rhsa:tst:20191167028
        • AND
          • comment kernel-modules-extra is earlier than 0:4.18.0-240.1.1.el8_3
            oval oval:com.redhat.rhsa:tst:20204685027
          • comment kernel-modules-extra is signed with Red Hat redhatrelease2 key
            oval oval:com.redhat.rhsa:tst:20191167030
        • AND
          • comment kernel-tools is earlier than 0:4.18.0-240.1.1.el8_3
            oval oval:com.redhat.rhsa:tst:20204685029
          • comment kernel-tools is signed with Red Hat redhatrelease2 key
            oval oval:com.redhat.rhsa:tst:20140678022
        • AND
          • comment kernel-tools-libs is earlier than 0:4.18.0-240.1.1.el8_3
            oval oval:com.redhat.rhsa:tst:20204685031
          • comment kernel-tools-libs is signed with Red Hat redhatrelease2 key
            oval oval:com.redhat.rhsa:tst:20140678024
        • AND
          • comment kernel-tools-libs-devel is earlier than 0:4.18.0-240.1.1.el8_3
            oval oval:com.redhat.rhsa:tst:20204685033
          • comment kernel-tools-libs-devel is signed with Red Hat redhatrelease2 key
            oval oval:com.redhat.rhsa:tst:20140678026
        • AND
          • comment kernel-zfcpdump is earlier than 0:4.18.0-240.1.1.el8_3
            oval oval:com.redhat.rhsa:tst:20204685035
          • comment kernel-zfcpdump is signed with Red Hat redhatrelease2 key
            oval oval:com.redhat.rhsa:tst:20191167038
        • AND
          • comment kernel-zfcpdump-core is earlier than 0:4.18.0-240.1.1.el8_3
            oval oval:com.redhat.rhsa:tst:20204685037
          • comment kernel-zfcpdump-core is signed with Red Hat redhatrelease2 key
            oval oval:com.redhat.rhsa:tst:20191167040
        • AND
          • comment kernel-zfcpdump-devel is earlier than 0:4.18.0-240.1.1.el8_3
            oval oval:com.redhat.rhsa:tst:20204685039
          • comment kernel-zfcpdump-devel is signed with Red Hat redhatrelease2 key
            oval oval:com.redhat.rhsa:tst:20191167042
        • AND
          • comment kernel-zfcpdump-modules is earlier than 0:4.18.0-240.1.1.el8_3
            oval oval:com.redhat.rhsa:tst:20204685041
          • comment kernel-zfcpdump-modules is signed with Red Hat redhatrelease2 key
            oval oval:com.redhat.rhsa:tst:20191167044
        • AND
          • comment kernel-zfcpdump-modules-extra is earlier than 0:4.18.0-240.1.1.el8_3
            oval oval:com.redhat.rhsa:tst:20204685043
          • comment kernel-zfcpdump-modules-extra is signed with Red Hat redhatrelease2 key
            oval oval:com.redhat.rhsa:tst:20191167046
        • AND
          • comment perf is earlier than 0:4.18.0-240.1.1.el8_3
            oval oval:com.redhat.rhsa:tst:20204685045
          • comment perf is signed with Red Hat redhatrelease2 key
            oval oval:com.redhat.rhsa:tst:20100842022
        • AND
          • comment python3-perf is earlier than 0:4.18.0-240.1.1.el8_3
            oval oval:com.redhat.rhsa:tst:20204685047
          • comment python3-perf is signed with Red Hat redhatrelease2 key
            oval oval:com.redhat.rhsa:tst:20191167050
    rhsa
    id RHSA-2020:4685
    released 2020-11-04
    severity Important
    title RHSA-2020:4685: kernel security update (Important)
  • bugzilla
    id 1891484
    title CVE-2020-25662 kernel: Red Hat only CVE-2020-12352 regression
    oval
    OR
    • comment Red Hat Enterprise Linux must be installed
      oval oval:com.redhat.rhba:tst:20070304026
    • AND
      • comment Red Hat Enterprise Linux 8 is installed
        oval oval:com.redhat.rhba:tst:20193384074
      • OR
        • comment kernel-rt earlier than 0:4.18.0-240.1.1.rt7.55.el8_3 is currently running
          oval oval:com.redhat.rhsa:tst:20204685049
        • comment kernel-rt earlier than 0:4.18.0-240.1.1.rt7.55.el8_3 is set to boot up on next boot
          oval oval:com.redhat.rhsa:tst:20204686026
      • OR
        • AND
          • comment kernel-rt is earlier than 0:4.18.0-240.1.1.rt7.55.el8_3
            oval oval:com.redhat.rhsa:tst:20204686001
          • comment kernel-rt is signed with Red Hat redhatrelease2 key
            oval oval:com.redhat.rhsa:tst:20150727002
        • AND
          • comment kernel-rt-core is earlier than 0:4.18.0-240.1.1.rt7.55.el8_3
            oval oval:com.redhat.rhsa:tst:20204686003
          • comment kernel-rt-core is signed with Red Hat redhatrelease2 key
            oval oval:com.redhat.rhsa:tst:20191174004
        • AND
          • comment kernel-rt-debug is earlier than 0:4.18.0-240.1.1.rt7.55.el8_3
            oval oval:com.redhat.rhsa:tst:20204686005
          • comment kernel-rt-debug is signed with Red Hat redhatrelease2 key
            oval oval:com.redhat.rhsa:tst:20150727004
        • AND
          • comment kernel-rt-debug-core is earlier than 0:4.18.0-240.1.1.rt7.55.el8_3
            oval oval:com.redhat.rhsa:tst:20204686007
          • comment kernel-rt-debug-core is signed with Red Hat redhatrelease2 key
            oval oval:com.redhat.rhsa:tst:20191174008
        • AND
          • comment kernel-rt-debug-devel is earlier than 0:4.18.0-240.1.1.rt7.55.el8_3
            oval oval:com.redhat.rhsa:tst:20204686009
          • comment kernel-rt-debug-devel is signed with Red Hat redhatrelease2 key
            oval oval:com.redhat.rhsa:tst:20150727006
        • AND
          • comment kernel-rt-debug-kvm is earlier than 0:4.18.0-240.1.1.rt7.55.el8_3
            oval oval:com.redhat.rhsa:tst:20204686011
          • comment kernel-rt-debug-kvm is signed with Red Hat redhatrelease2 key
            oval oval:com.redhat.rhsa:tst:20160212008
        • AND
          • comment kernel-rt-debug-modules is earlier than 0:4.18.0-240.1.1.rt7.55.el8_3
            oval oval:com.redhat.rhsa:tst:20204686013
          • comment kernel-rt-debug-modules is signed with Red Hat redhatrelease2 key
            oval oval:com.redhat.rhsa:tst:20191174014
        • AND
          • comment kernel-rt-debug-modules-extra is earlier than 0:4.18.0-240.1.1.rt7.55.el8_3
            oval oval:com.redhat.rhsa:tst:20204686015
          • comment kernel-rt-debug-modules-extra is signed with Red Hat redhatrelease2 key
            oval oval:com.redhat.rhsa:tst:20191174016
        • AND
          • comment kernel-rt-devel is earlier than 0:4.18.0-240.1.1.rt7.55.el8_3
            oval oval:com.redhat.rhsa:tst:20204686017
          • comment kernel-rt-devel is signed with Red Hat redhatrelease2 key
            oval oval:com.redhat.rhsa:tst:20150727008
        • AND
          • comment kernel-rt-kvm is earlier than 0:4.18.0-240.1.1.rt7.55.el8_3
            oval oval:com.redhat.rhsa:tst:20204686019
          • comment kernel-rt-kvm is signed with Red Hat redhatrelease2 key
            oval oval:com.redhat.rhsa:tst:20160212014
        • AND
          • comment kernel-rt-modules is earlier than 0:4.18.0-240.1.1.rt7.55.el8_3
            oval oval:com.redhat.rhsa:tst:20204686021
          • comment kernel-rt-modules is signed with Red Hat redhatrelease2 key
            oval oval:com.redhat.rhsa:tst:20191174022
        • AND
          • comment kernel-rt-modules-extra is earlier than 0:4.18.0-240.1.1.rt7.55.el8_3
            oval oval:com.redhat.rhsa:tst:20204686023
          • comment kernel-rt-modules-extra is signed with Red Hat redhatrelease2 key
            oval oval:com.redhat.rhsa:tst:20191174024
    rhsa
    id RHSA-2020:4686
    released 2020-11-04
    severity Important
    title RHSA-2020:4686: kernel-rt security update (Important)
rpms
  • bpftool-0:4.18.0-240.1.1.el8_3
  • bpftool-debuginfo-0:4.18.0-240.1.1.el8_3
  • kernel-0:4.18.0-240.1.1.el8_3
  • kernel-abi-whitelists-0:4.18.0-240.1.1.el8_3
  • kernel-core-0:4.18.0-240.1.1.el8_3
  • kernel-cross-headers-0:4.18.0-240.1.1.el8_3
  • kernel-debug-0:4.18.0-240.1.1.el8_3
  • kernel-debug-core-0:4.18.0-240.1.1.el8_3
  • kernel-debug-debuginfo-0:4.18.0-240.1.1.el8_3
  • kernel-debug-devel-0:4.18.0-240.1.1.el8_3
  • kernel-debug-modules-0:4.18.0-240.1.1.el8_3
  • kernel-debug-modules-extra-0:4.18.0-240.1.1.el8_3
  • kernel-debuginfo-0:4.18.0-240.1.1.el8_3
  • kernel-debuginfo-common-aarch64-0:4.18.0-240.1.1.el8_3
  • kernel-debuginfo-common-ppc64le-0:4.18.0-240.1.1.el8_3
  • kernel-debuginfo-common-s390x-0:4.18.0-240.1.1.el8_3
  • kernel-debuginfo-common-x86_64-0:4.18.0-240.1.1.el8_3
  • kernel-devel-0:4.18.0-240.1.1.el8_3
  • kernel-doc-0:4.18.0-240.1.1.el8_3
  • kernel-headers-0:4.18.0-240.1.1.el8_3
  • kernel-modules-0:4.18.0-240.1.1.el8_3
  • kernel-modules-extra-0:4.18.0-240.1.1.el8_3
  • kernel-tools-0:4.18.0-240.1.1.el8_3
  • kernel-tools-debuginfo-0:4.18.0-240.1.1.el8_3
  • kernel-tools-libs-0:4.18.0-240.1.1.el8_3
  • kernel-tools-libs-devel-0:4.18.0-240.1.1.el8_3
  • kernel-zfcpdump-0:4.18.0-240.1.1.el8_3
  • kernel-zfcpdump-core-0:4.18.0-240.1.1.el8_3
  • kernel-zfcpdump-debuginfo-0:4.18.0-240.1.1.el8_3
  • kernel-zfcpdump-devel-0:4.18.0-240.1.1.el8_3
  • kernel-zfcpdump-modules-0:4.18.0-240.1.1.el8_3
  • kernel-zfcpdump-modules-extra-0:4.18.0-240.1.1.el8_3
  • perf-0:4.18.0-240.1.1.el8_3
  • perf-debuginfo-0:4.18.0-240.1.1.el8_3
  • python3-perf-0:4.18.0-240.1.1.el8_3
  • python3-perf-debuginfo-0:4.18.0-240.1.1.el8_3
  • kernel-rt-0:4.18.0-240.1.1.rt7.55.el8_3
  • kernel-rt-core-0:4.18.0-240.1.1.rt7.55.el8_3
  • kernel-rt-debug-0:4.18.0-240.1.1.rt7.55.el8_3
  • kernel-rt-debug-core-0:4.18.0-240.1.1.rt7.55.el8_3
  • kernel-rt-debug-debuginfo-0:4.18.0-240.1.1.rt7.55.el8_3
  • kernel-rt-debug-devel-0:4.18.0-240.1.1.rt7.55.el8_3
  • kernel-rt-debug-kvm-0:4.18.0-240.1.1.rt7.55.el8_3
  • kernel-rt-debug-modules-0:4.18.0-240.1.1.rt7.55.el8_3
  • kernel-rt-debug-modules-extra-0:4.18.0-240.1.1.rt7.55.el8_3
  • kernel-rt-debuginfo-0:4.18.0-240.1.1.rt7.55.el8_3
  • kernel-rt-debuginfo-common-x86_64-0:4.18.0-240.1.1.rt7.55.el8_3
  • kernel-rt-devel-0:4.18.0-240.1.1.rt7.55.el8_3
  • kernel-rt-kvm-0:4.18.0-240.1.1.rt7.55.el8_3
  • kernel-rt-modules-0:4.18.0-240.1.1.rt7.55.el8_3
  • kernel-rt-modules-extra-0:4.18.0-240.1.1.rt7.55.el8_3
refmap via4
confirm
Last major update 19-10-2021 - 13:49
Published 05-11-2020 - 21:15
Last modified 19-10-2021 - 13:49
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