suse-su-2023:4260-1
Vulnerability from csaf_suse
Published
2023-10-30 10:03
Modified
2023-10-30 10:03
Summary
Security update for the Linux Kernel (Live Patch 35 for SLE 15 SP3)

Notes

Title of the patch
Security update for the Linux Kernel (Live Patch 35 for SLE 15 SP3)
Description of the patch
This update for the Linux Kernel 5.3.18-150300_59_130 fixes several issues. The following security issues were fixed: - CVE-2023-4623: Fixed a use-after-free issue in the HFSC network scheduler which could be exploited to achieve local privilege escalation (bsc#1215440). - CVE-2023-4147: Fixed use-after-free in nf_tables_newrule (bsc#1215118). - CVE-2023-4004: Fixed improper element removal netfilter nft_set_pipapo (bsc#1214812).
Patchnames
SUSE-2023-4260,SUSE-SLE-Module-Live-Patching-15-SP3-2023-4260
Terms of use
CSAF 2.0 data is provided by SUSE under the Creative Commons License 4.0 with Attribution (CC-BY-4.0).


To clipboard 

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    "distribution": {
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      "ids": [
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          "text": "https://www.suse.com/security/cve/CVE-2023-4004"
        }
      ],
      "notes": [
        {
          "category": "general",
          "text": "A use-after-free flaw was found in the Linux kernel\u0027s netfilter in the way a user triggers the nft_pipapo_remove function with the element, without a NFT_SET_EXT_KEY_END. This issue could allow a local user to crash the system or potentially escalate their privileges on the system.",
          "title": "CVE description"
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      ],
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          "url": "https://www.suse.com/security/cve/CVE-2023-4004"
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        {
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          "summary": "SUSE Bug 1213812 for CVE-2023-4004",
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          "url": "https://bugzilla.suse.com/1214812"
        }
      ],
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          "details": "To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or \"zypper patch\".\n",
          "product_ids": [
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            "SUSE Linux Enterprise Live Patching 15 SP3:kernel-livepatch-5_3_18-150300_59_130-default-3-150300.2.2.s390x",
            "SUSE Linux Enterprise Live Patching 15 SP3:kernel-livepatch-5_3_18-150300_59_130-default-3-150300.2.2.x86_64"
          ]
        }
      ],
      "scores": [
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            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
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      "title": "CVE-2023-4004"
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          "text": "A use-after-free flaw was found in the Linux kernel\u0027s Netfilter functionality when adding a rule with NFTA_RULE_CHAIN_ID. This flaw allows a local user to crash or escalate their privileges on the system.",
          "title": "CVE description"
        }
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          "summary": "SUSE Bug 1213968 for CVE-2023-4147",
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          "text": "https://www.suse.com/security/cve/CVE-2023-4623"
        }
      ],
      "notes": [
        {
          "category": "general",
          "text": "A use-after-free vulnerability in the Linux kernel\u0027s net/sched: sch_hfsc (HFSC qdisc traffic control) component can be exploited to achieve local privilege escalation.\n\nIf a class with a link-sharing curve (i.e. with the HFSC_FSC flag set) has a parent without a link-sharing curve, then init_vf() will call vttree_insert() on the parent, but vttree_remove() will be skipped in update_vf(). This leaves a dangling pointer that can cause a use-after-free.\n\nWe recommend upgrading past commit b3d26c5702c7d6c45456326e56d2ccf3f103e60f.",
          "title": "CVE description"
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      ],
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          "url": "https://bugzilla.suse.com/1215115"
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        {
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          "summary": "SUSE Bug 1215440 for CVE-2023-4623",
          "url": "https://bugzilla.suse.com/1215440"
        },
        {
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          "summary": "SUSE Bug 1217444 for CVE-2023-4623",
          "url": "https://bugzilla.suse.com/1217444"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1217531 for CVE-2023-4623",
          "url": "https://bugzilla.suse.com/1217531"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1219698 for CVE-2023-4623",
          "url": "https://bugzilla.suse.com/1219698"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1221578 for CVE-2023-4623",
          "url": "https://bugzilla.suse.com/1221578"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1221598 for CVE-2023-4623",
          "url": "https://bugzilla.suse.com/1221598"
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        {
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          "details": "To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or \"zypper patch\".\n",
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          ]
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            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
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            "SUSE Linux Enterprise Live Patching 15 SP3:kernel-livepatch-5_3_18-150300_59_130-default-3-150300.2.2.s390x",
            "SUSE Linux Enterprise Live Patching 15 SP3:kernel-livepatch-5_3_18-150300_59_130-default-3-150300.2.2.x86_64"
          ]
        }
      ],
      "threats": [
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          "category": "impact",
          "date": "2023-10-30T10:03:33Z",
          "details": "important"
        }
      ],
      "title": "CVE-2023-4623"
    }
  ]
}


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