SUSE-SU-2023:3838-1

Vulnerability from csaf_suse - Published: 2023-09-27 17:27 - Updated: 2023-09-27 17:27
Summary
Security update for the Linux Kernel (Live Patch 40 for SLE 15 SP1)
Severity
Important
Notes
Title of the patch: Security update for the Linux Kernel (Live Patch 40 for SLE 15 SP1)
Description of the patch: This update for the Linux Kernel 4.12.14-150100_197_145 fixes several issues. The following security issues were fixed: - CVE-2023-3776: Fixed improper refcount update in cls_fw leads to use-after-free (bsc#1215119). - CVE-2023-1829: Fixed a use-after-free vulnerability in the control index filter (tcindex) (bsc#1210619). - CVE-2023-3609: Fixed reference counter leak leading to overflow in net/sched (bsc#1213587). - CVE-2023-3812: Fixed an out-of-bounds memory access flaw in the TUN/TAP device driver functionality that could allow a local user to crash or potentially escalate their privileges on the system (bsc#1213706).
Patchnames: SUSE-2023-3838,SUSE-SLE-Module-Live-Patching-15-SP1-2023-3838
Terms of use: CSAF 2.0 data is provided by SUSE under the Creative Commons License 4.0 with Attribution (CC-BY-4.0).
CVE-2023-1829
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Vendor Fix To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
CVE-2023-3609
7 (High)
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Vendor Fix To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
CVE-2023-3776
7 (High)
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Vendor Fix To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
CVE-2023-3812
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Vendor Fix To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
References
https://www.suse.com/support/security/rating/ external
https://ftp.suse.com/pub/projects/security/csaf/s… self
https://www.suse.com/support/update/announcement/… self
https://lists.suse.com/pipermail/sle-security-upd… self
https://bugzilla.suse.com/1210619 self
https://bugzilla.suse.com/1213587 self
https://bugzilla.suse.com/1213706 self
https://bugzilla.suse.com/1215119 self
https://www.suse.com/security/cve/CVE-2023-1829/ self
https://www.suse.com/security/cve/CVE-2023-3609/ self
https://www.suse.com/security/cve/CVE-2023-3776/ self
https://www.suse.com/security/cve/CVE-2023-3812/ self
https://www.suse.com/security/cve/CVE-2023-1829 external
https://bugzilla.suse.com/1210335 external
https://bugzilla.suse.com/1210619 external
https://bugzilla.suse.com/1217444 external
https://bugzilla.suse.com/1217531 external
https://bugzilla.suse.com/1220886 external
https://bugzilla.suse.com/1228311 external
https://www.suse.com/security/cve/CVE-2023-3609 external
https://bugzilla.suse.com/1213586 external
https://bugzilla.suse.com/1213587 external
https://bugzilla.suse.com/1217444 external
https://bugzilla.suse.com/1217531 external
https://www.suse.com/security/cve/CVE-2023-3776 external
https://bugzilla.suse.com/1213588 external
https://bugzilla.suse.com/1215119 external
https://bugzilla.suse.com/1215674 external
https://bugzilla.suse.com/1217444 external
https://bugzilla.suse.com/1217531 external
https://bugzilla.suse.com/1221578 external
https://bugzilla.suse.com/1221598 external
https://bugzilla.suse.com/1223091 external
https://bugzilla.suse.com/1223973 external
https://www.suse.com/security/cve/CVE-2023-3812 external
https://bugzilla.suse.com/1213543 external
https://bugzilla.suse.com/1213706 external
https://bugzilla.suse.com/1217444 external
https://bugzilla.suse.com/1217531 external
To clipboard 

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          "text": "A use-after-free vulnerability in the Linux Kernel traffic control index filter (tcindex) can be exploited to achieve local privilege escalation.  The tcindex_delete function which does not properly deactivate filters in case of a perfect hashes while deleting the underlying structure which can later lead to double freeing the structure.  A local attacker user can use this vulnerability to elevate its privileges to root.\nWe recommend upgrading past commit 8c710f75256bb3cf05ac7b1672c82b92c43f3d28.",
          "title": "CVE description"
        }
      ],
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          "text": "A use-after-free vulnerability in the Linux kernel\u0027s net/sched: cls_u32 component can be exploited to achieve local privilege escalation.\n\nIf tcf_change_indev() fails, u32_set_parms() will immediately return an error after incrementing or decrementing the reference counter in tcf_bind_filter(). If an attacker can control the reference counter and set it to zero, they can cause the reference to be freed, leading to a use-after-free vulnerability.\n\nWe recommend upgrading past commit 04c55383fa5689357bcdd2c8036725a55ed632bc.",
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        }
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        {
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          "text": "A use-after-free vulnerability in the Linux kernel\u0027s net/sched: cls_fw component can be exploited to achieve local privilege escalation.\n\nIf tcf_change_indev() fails, fw_set_parms() will immediately return an error after incrementing or decrementing the reference counter in tcf_bind_filter(). If an attacker can control the reference counter and set it to zero, they can cause the reference to be freed, leading to a use-after-free vulnerability.\n\nWe recommend upgrading past commit 0323bce598eea038714f941ce2b22541c46d488f.",
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        {
          "category": "impact",
          "date": "2023-09-27T17:27:47Z",
          "details": "important"
        }
      ],
      "title": "CVE-2023-3776"
    },
    {
      "cve": "CVE-2023-3812",
      "ids": [
        {
          "system_name": "SUSE CVE Page",
          "text": "https://www.suse.com/security/cve/CVE-2023-3812"
        }
      ],
      "notes": [
        {
          "category": "general",
          "text": "An out-of-bounds memory access flaw was found in the Linux kernel\u0027s TUN/TAP device driver functionality in how a user generates a malicious (too big) networking packet when napi frags is enabled. This flaw allows a local user to crash or potentially escalate their privileges on the system.",
          "title": "CVE description"
        }
      ],
      "product_status": {
        "recommended": [
          "SUSE Linux Enterprise Live Patching 15 SP1:kernel-livepatch-4_12_14-150100_197_145-default-6-150100.2.1.ppc64le",
          "SUSE Linux Enterprise Live Patching 15 SP1:kernel-livepatch-4_12_14-150100_197_145-default-6-150100.2.1.x86_64"
        ]
      },
      "references": [
        {
          "category": "external",
          "summary": "CVE-2023-3812",
          "url": "https://www.suse.com/security/cve/CVE-2023-3812"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1213543 for CVE-2023-3812",
          "url": "https://bugzilla.suse.com/1213543"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1213706 for CVE-2023-3812",
          "url": "https://bugzilla.suse.com/1213706"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1217444 for CVE-2023-3812",
          "url": "https://bugzilla.suse.com/1217444"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1217531 for CVE-2023-3812",
          "url": "https://bugzilla.suse.com/1217531"
        }
      ],
      "remediations": [
        {
          "category": "vendor_fix",
          "details": "To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or \"zypper patch\".\n",
          "product_ids": [
            "SUSE Linux Enterprise Live Patching 15 SP1:kernel-livepatch-4_12_14-150100_197_145-default-6-150100.2.1.ppc64le",
            "SUSE Linux Enterprise Live Patching 15 SP1:kernel-livepatch-4_12_14-150100_197_145-default-6-150100.2.1.x86_64"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 7.8,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "products": [
            "SUSE Linux Enterprise Live Patching 15 SP1:kernel-livepatch-4_12_14-150100_197_145-default-6-150100.2.1.ppc64le",
            "SUSE Linux Enterprise Live Patching 15 SP1:kernel-livepatch-4_12_14-150100_197_145-default-6-150100.2.1.x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "date": "2023-09-27T17:27:47Z",
          "details": "important"
        }
      ],
      "title": "CVE-2023-3812"
    }
  ]
}


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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.