FKIE_CVE-2020-8835

Vulnerability from fkie_nvd - Published: 2020-04-02 18:15 - Updated: 2024-11-21 05:39
Severity ?
7.8 (High) - CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Summary
In the Linux kernel 5.5.0 and newer, the bpf verifier (kernel/bpf/verifier.c) did not properly restrict the register bounds for 32-bit operations, leading to out-of-bounds reads and writes in kernel memory. The vulnerability also affects the Linux 5.4 stable series, starting with v5.4.7, as the introducing commit was backported to that branch. This vulnerability was fixed in 5.6.1, 5.5.14, and 5.4.29. (issue is aka ZDI-CAN-10780)
References
security@ubuntu.comhttp://www.openwall.com/lists/oss-security/2021/07/20/1Exploit, Mailing List, Third Party Advisory
security@ubuntu.comhttps://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next.git/commit/?id=f2d67fec0b43edce8c416101cdc52e71145b5fefPatch, Vendor Advisory
security@ubuntu.comhttps://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=f2d67fec0b43edce8c416101cdc52e71145b5fefPatch, Vendor Advisory
security@ubuntu.comhttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/F7OONYGMSYBEFHLHZJK3GOI5Z553G4LD/
security@ubuntu.comhttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TF4PQZBEPNXDSK5DOBMW54OCLP25FTCD/
security@ubuntu.comhttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YXBWSHZ6DJIZVXKXGZPK6QPFCY7VKZEG/
security@ubuntu.comhttps://lore.kernel.org/bpf/20200330160324.15259-1-daniel%40iogearbox.net/T/
security@ubuntu.comhttps://security.netapp.com/advisory/ntap-20200430-0004/Third Party Advisory
security@ubuntu.comhttps://usn.ubuntu.com/4313-1/Third Party Advisory
security@ubuntu.comhttps://usn.ubuntu.com/usn/usn-4313-1Third Party Advisory
security@ubuntu.comhttps://www.openwall.com/lists/oss-security/2020/03/30/3Mailing List, Patch, Third Party Advisory
security@ubuntu.comhttps://www.thezdi.com/blog/2020/3/19/pwn2own-2020-day-one-resultsThird Party Advisory
af854a3a-2127-422b-91ae-364da2661108http://www.openwall.com/lists/oss-security/2021/07/20/1Exploit, Mailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next.git/commit/?id=f2d67fec0b43edce8c416101cdc52e71145b5fefPatch, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=f2d67fec0b43edce8c416101cdc52e71145b5fefPatch, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/F7OONYGMSYBEFHLHZJK3GOI5Z553G4LD/
af854a3a-2127-422b-91ae-364da2661108https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TF4PQZBEPNXDSK5DOBMW54OCLP25FTCD/
af854a3a-2127-422b-91ae-364da2661108https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YXBWSHZ6DJIZVXKXGZPK6QPFCY7VKZEG/
af854a3a-2127-422b-91ae-364da2661108https://lore.kernel.org/bpf/20200330160324.15259-1-daniel%40iogearbox.net/T/
af854a3a-2127-422b-91ae-364da2661108https://security.netapp.com/advisory/ntap-20200430-0004/Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://usn.ubuntu.com/4313-1/Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://usn.ubuntu.com/usn/usn-4313-1Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://www.openwall.com/lists/oss-security/2020/03/30/3Mailing List, Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://www.thezdi.com/blog/2020/3/19/pwn2own-2020-day-one-resultsThird Party Advisory
Impacted products
Vendor Product Version
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
fedoraproject fedora 30
fedoraproject fedora 31
fedoraproject fedora 32
canonical ubuntu_linux 18.04
canonical ubuntu_linux 19.10
netapp cloud_backup -
netapp hci_management_node -
netapp solidfire -
netapp steelstore_cloud_integrated_storage -
netapp a700s_firmware -
netapp a700s -
netapp 8300_firmware -
netapp 8300 -
netapp 8700_firmware -
netapp 8700 -
netapp a400_firmware -
netapp a400 -
netapp a320_firmware -
netapp a320 -
netapp c190_firmware -
netapp c190 -
netapp a220_firmware -
netapp a220 -
netapp fas2720_firmware -
netapp fas2720 -
netapp fas2750_firmware -
netapp fas2750 -
netapp a800_firmware -
netapp a800 -
netapp h300s_firmware -
netapp h300s -
netapp h500s_firmware -
netapp h500s -
netapp h700s_firmware -
netapp h700s -
netapp h300e_firmware -
netapp h300e -
netapp h500e_firmware -
netapp h500e -
netapp h700e_firmware -
netapp h700e -
netapp h410s_firmware -
netapp h410s -
netapp h610c_firmware -
netapp h610c -
netapp h610s_firmware -
netapp h610s -
netapp h615c_firmware -
netapp h615c -
To clipboard 

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  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel 5.5.0 and newer, the bpf verifier (kernel/bpf/verifier.c) did not properly restrict the register bounds for 32-bit operations, leading to out-of-bounds reads and writes in kernel memory. The vulnerability also affects the Linux 5.4 stable series, starting with v5.4.7, as the introducing commit was backported to that branch. This vulnerability was fixed in 5.6.1, 5.5.14, and 5.4.29. (issue is aka ZDI-CAN-10780)"
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux versiones 5.5.0 y m\u00e1s recientes, el verificador bpf (kernel/bpf/verifier.c) no restringi\u00f3 apropiadamente los l\u00edmites de registro para operaciones de 32 bits, conllevando a lecturas y escrituras fuera de l\u00edmites en la memoria del kernel. La vulnerabilidad tambi\u00e9n afecta a la serie estable de Linux versi\u00f3n 5.4, comenzando con la versi\u00f3n v5.4.7, ya que el commit de introducci\u00f3n fue respaldado en esa derivaci\u00f3n. Esta vulnerabilidad fue corregida en las versiones 5.6.1, 5.5.14 y 5.4.29. (el problema tambi\u00e9n se conoce como ZDI-CAN-10780)"
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  "id": "CVE-2020-8835",
  "lastModified": "2024-11-21T05:39:32.163",
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        "obtainAllPrivilege": false,
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          "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H",
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        "source": "security@ubuntu.com",
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  "published": "2020-04-02T18:15:18.943",
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  "vulnStatus": "Modified",
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      "description": [
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          "value": "CWE-125"
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      "source": "nvd@nist.gov",
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}


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Tags
Taxonomy of the tags.




Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.