SUSE-SU-2026:24137-1

Vulnerability from csaf_suse - Published: 2026-10-10 16:41 - Updated: 2026-10-14 16:41
Summary
Security update for busybox
Severity
Important
Notes
Title of the patch: Security update for busybox
Description of the patch: This update for busybox fixes the following issues: - CVE-2026-88830: unit confusion in TLS Montgomery reduction buffer allocation causes a pre-authentication heap buffer overflow when processing a crafted `ClientKeyExchange` message (bsc#1282575). - CVE-2026-88831: httpd silently fails open when IP deny rules contain invalid CIDR prefix lengths (bsc#1282550). - CVE-2026-88832: romfs volume ID parsing uses unbounded `strlen` on attacker-controlled metadata and allows for a heap buffer overflow when crafted filesystem images are processed (bsc#1282576). - CVE-2026-88835: dpkg read_package_field() steps past NUL terminator, causing out-of-bounds read on malformed .deb packages (bsc#1282551). - CVE-2026-88837: httpd misidentifies yescrypt password hashes as plaintext (bsc#1282552). - CVE-2026-88839: passwd/group parser writes heap pointers out of bounds due to stale tokenize() endpoint (bsc#1282568). - CVE-2026-88841: OOB read and silent memory corruption of the status file due to `write_status_file()` failing to reset the `field_start` cursor between package stanzas (bsc#1282653).
Patchnames: SUSE-SLE-Micro-6.0-926
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-2026-88830
8.1 (High)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Affected products
Product Identifier Version Remediation
Unresolved product id: SUSE Linux Micro 6.0:busybox-0:1.36.1-159998.1.1.aarch64 —
Vendor Fix
Unresolved product id: SUSE Linux Micro 6.0:busybox-0:1.36.1-159998.1.1.s390x —
Vendor Fix
Unresolved product id: SUSE Linux Micro 6.0:busybox-0:1.36.1-159998.1.1.x86_64 —
Vendor Fix
Threats
Impact important
CVE-2026-88831
5.3 (Medium)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Affected products
Recommended 3 products, the same list as for CVE-2026-88830
Threats
Impact moderate
CVE-2026-88832
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Affected products
Recommended 3 products, the same list as for CVE-2026-88830
Threats
Impact important
CVE-2026-88835
6.1 (Medium)
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H
Affected products
Recommended 3 products, the same list as for CVE-2026-88830
Threats
Impact moderate
CVE-2026-88837
6.5 (Medium)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:N
Affected products
Recommended 3 products, the same list as for CVE-2026-88830
Threats
Impact moderate
CVE-2026-88839
6.7 (Medium)
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Affected products
Recommended 3 products, the same list as for CVE-2026-88830
Threats
Impact moderate
CVE-2026-88841
4.4 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L
Affected products
Recommended 3 products, the same list as for CVE-2026-88830
Threats
Impact moderate
References
URL Category
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://www.suse.com/support/update/announcement/… self
https://bugzilla.suse.com/1282550 self
https://bugzilla.suse.com/1282551 self
https://bugzilla.suse.com/1282552 self
https://bugzilla.suse.com/1282568 self
https://bugzilla.suse.com/1282575 self
https://bugzilla.suse.com/1282576 self
https://bugzilla.suse.com/1282653 self
https://www.suse.com/security/cve/CVE-2026-88830/ self
https://www.suse.com/security/cve/CVE-2026-88831/ self
https://www.suse.com/security/cve/CVE-2026-88832/ self
https://www.suse.com/security/cve/CVE-2026-88835/ self
https://www.suse.com/security/cve/CVE-2026-88837/ self
https://www.suse.com/security/cve/CVE-2026-88839/ self
https://www.suse.com/security/cve/CVE-2026-88841/ self
https://www.suse.com/security/cve/CVE-2026-88830 external
https://bugzilla.suse.com/1282575 external
https://www.suse.com/security/cve/CVE-2026-88831 external
https://bugzilla.suse.com/1282550 external
https://www.suse.com/security/cve/CVE-2026-88832 external
https://bugzilla.suse.com/1282576 external
https://www.suse.com/security/cve/CVE-2026-88835 external
https://bugzilla.suse.com/1282551 external
https://www.suse.com/security/cve/CVE-2026-88837 external
https://bugzilla.suse.com/1282552 external
https://www.suse.com/security/cve/CVE-2026-88839 external
https://bugzilla.suse.com/1282568 external
https://www.suse.com/security/cve/CVE-2026-88841 external
https://bugzilla.suse.com/1282653 external
To clipboard 

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  "vulnerabilities": [
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      "notes": [
        {
          "category": "general",
          "text": "A unit confusion in BusyBox TLS Montgomery reduction buffer allocation causes a pre-authentication heap buffer overflow when processing a crafted ClientKeyExchange message.",
          "title": "CVE description"
        }
      ],
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          "product_ids": [
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            "SUSE Linux Micro 6.0:busybox-0:1.36.1-159998.1.1.s390x",
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            "version": "3.1"
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            "SUSE Linux Micro 6.0:busybox-0:1.36.1-159998.1.1.s390x",
            "SUSE Linux Micro 6.0:busybox-0:1.36.1-159998.1.1.x86_64"
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          "date": "2026-10-10T16:41:24Z",
          "details": "important"
        }
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      "title": "CVE-2026-88830"
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          "text": "https://www.suse.com/security/cve/CVE-2026-88831"
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          "title": "CVE description"
        }
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          "date": "2026-10-10T16:41:24Z",
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        }
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      "title": "CVE-2026-88831"
    },
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      "ids": [
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          "text": "https://www.suse.com/security/cve/CVE-2026-88832"
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          "category": "general",
          "text": "BusyBox romfs volume ID parsing uses unbounded strlen on attacker-controlled metadata, causing a heap buffer overflow when processing crafted filesystem images.",
          "title": "CVE description"
        }
      ],
      "product_status": {
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          "url": "https://www.suse.com/security/cve/CVE-2026-88832"
        },
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          "category": "external",
          "summary": "SUSE Bug 1282576 for CVE-2026-88832",
          "url": "https://bugzilla.suse.com/1282576"
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      "remediations": [
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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": [
            "SUSE Linux Micro 6.0:busybox-0:1.36.1-159998.1.1.aarch64",
            "SUSE Linux Micro 6.0:busybox-0:1.36.1-159998.1.1.s390x",
            "SUSE Linux Micro 6.0:busybox-0:1.36.1-159998.1.1.x86_64"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 7.8,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "products": [
            "SUSE Linux Micro 6.0:busybox-0:1.36.1-159998.1.1.aarch64",
            "SUSE Linux Micro 6.0:busybox-0:1.36.1-159998.1.1.s390x",
            "SUSE Linux Micro 6.0:busybox-0:1.36.1-159998.1.1.x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "date": "2026-10-10T16:41:24Z",
          "details": "important"
        }
      ],
      "title": "CVE-2026-88832"
    },
    {
      "cve": "CVE-2026-88835",
      "ids": [
        {
          "system_name": "SUSE CVE Page",
          "text": "https://www.suse.com/security/cve/CVE-2026-88835"
        }
      ],
      "notes": [
        {
          "category": "general",
          "text": "BusyBox dpkg read_package_field() steps past a NUL terminator on malformed .deb packages, causing an out-of-bounds heap read.",
          "title": "CVE description"
        }
      ],
      "product_status": {
        "recommended": [
          "SUSE Linux Micro 6.0:busybox-0:1.36.1-159998.1.1.aarch64",
          "SUSE Linux Micro 6.0:busybox-0:1.36.1-159998.1.1.s390x",
          "SUSE Linux Micro 6.0:busybox-0:1.36.1-159998.1.1.x86_64"
        ]
      },
      "references": [
        {
          "category": "external",
          "summary": "CVE-2026-88835",
          "url": "https://www.suse.com/security/cve/CVE-2026-88835"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1282551 for CVE-2026-88835",
          "url": "https://bugzilla.suse.com/1282551"
        }
      ],
      "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 Micro 6.0:busybox-0:1.36.1-159998.1.1.aarch64",
            "SUSE Linux Micro 6.0:busybox-0:1.36.1-159998.1.1.s390x",
            "SUSE Linux Micro 6.0:busybox-0:1.36.1-159998.1.1.x86_64"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 6.1,
            "baseSeverity": "MEDIUM",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H",
            "version": "3.1"
          },
          "products": [
            "SUSE Linux Micro 6.0:busybox-0:1.36.1-159998.1.1.aarch64",
            "SUSE Linux Micro 6.0:busybox-0:1.36.1-159998.1.1.s390x",
            "SUSE Linux Micro 6.0:busybox-0:1.36.1-159998.1.1.x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "date": "2026-10-10T16:41:24Z",
          "details": "moderate"
        }
      ],
      "title": "CVE-2026-88835"
    },
    {
      "cve": "CVE-2026-88837",
      "ids": [
        {
          "system_name": "SUSE CVE Page",
          "text": "https://www.suse.com/security/cve/CVE-2026-88837"
        }
      ],
      "notes": [
        {
          "category": "general",
          "text": "BusyBox httpd treats yescrypt ($y$) password hashes as plaintext during Basic Authentication, inverting the authentication check.",
          "title": "CVE description"
        }
      ],
      "product_status": {
        "recommended": [
          "SUSE Linux Micro 6.0:busybox-0:1.36.1-159998.1.1.aarch64",
          "SUSE Linux Micro 6.0:busybox-0:1.36.1-159998.1.1.s390x",
          "SUSE Linux Micro 6.0:busybox-0:1.36.1-159998.1.1.x86_64"
        ]
      },
      "references": [
        {
          "category": "external",
          "summary": "CVE-2026-88837",
          "url": "https://www.suse.com/security/cve/CVE-2026-88837"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1282552 for CVE-2026-88837",
          "url": "https://bugzilla.suse.com/1282552"
        }
      ],
      "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 Micro 6.0:busybox-0:1.36.1-159998.1.1.aarch64",
            "SUSE Linux Micro 6.0:busybox-0:1.36.1-159998.1.1.s390x",
            "SUSE Linux Micro 6.0:busybox-0:1.36.1-159998.1.1.x86_64"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 6.5,
            "baseSeverity": "MEDIUM",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:N",
            "version": "3.1"
          },
          "products": [
            "SUSE Linux Micro 6.0:busybox-0:1.36.1-159998.1.1.aarch64",
            "SUSE Linux Micro 6.0:busybox-0:1.36.1-159998.1.1.s390x",
            "SUSE Linux Micro 6.0:busybox-0:1.36.1-159998.1.1.x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "date": "2026-10-10T16:41:24Z",
          "details": "moderate"
        }
      ],
      "title": "CVE-2026-88837"
    },
    {
      "cve": "CVE-2026-88839",
      "ids": [
        {
          "system_name": "SUSE CVE Page",
          "text": "https://www.suse.com/security/cve/CVE-2026-88839"
        }
      ],
      "notes": [
        {
          "category": "general",
          "text": "BusyBox passwd/group tokenize() references a stale endpoint pointer after trimming, causing an out-of-bounds write of heap pointers.",
          "title": "CVE description"
        }
      ],
      "product_status": {
        "recommended": [
          "SUSE Linux Micro 6.0:busybox-0:1.36.1-159998.1.1.aarch64",
          "SUSE Linux Micro 6.0:busybox-0:1.36.1-159998.1.1.s390x",
          "SUSE Linux Micro 6.0:busybox-0:1.36.1-159998.1.1.x86_64"
        ]
      },
      "references": [
        {
          "category": "external",
          "summary": "CVE-2026-88839",
          "url": "https://www.suse.com/security/cve/CVE-2026-88839"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1282568 for CVE-2026-88839",
          "url": "https://bugzilla.suse.com/1282568"
        }
      ],
      "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 Micro 6.0:busybox-0:1.36.1-159998.1.1.aarch64",
            "SUSE Linux Micro 6.0:busybox-0:1.36.1-159998.1.1.s390x",
            "SUSE Linux Micro 6.0:busybox-0:1.36.1-159998.1.1.x86_64"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 6.7,
            "baseSeverity": "MEDIUM",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "products": [
            "SUSE Linux Micro 6.0:busybox-0:1.36.1-159998.1.1.aarch64",
            "SUSE Linux Micro 6.0:busybox-0:1.36.1-159998.1.1.s390x",
            "SUSE Linux Micro 6.0:busybox-0:1.36.1-159998.1.1.x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "date": "2026-10-10T16:41:24Z",
          "details": "moderate"
        }
      ],
      "title": "CVE-2026-88839"
    },
    {
      "cve": "CVE-2026-88841",
      "ids": [
        {
          "system_name": "SUSE CVE Page",
          "text": "https://www.suse.com/security/cve/CVE-2026-88841"
        }
      ],
      "notes": [
        {
          "category": "general",
          "text": "unknown",
          "title": "CVE description"
        }
      ],
      "product_status": {
        "recommended": [
          "SUSE Linux Micro 6.0:busybox-0:1.36.1-159998.1.1.aarch64",
          "SUSE Linux Micro 6.0:busybox-0:1.36.1-159998.1.1.s390x",
          "SUSE Linux Micro 6.0:busybox-0:1.36.1-159998.1.1.x86_64"
        ]
      },
      "references": [
        {
          "category": "external",
          "summary": "CVE-2026-88841",
          "url": "https://www.suse.com/security/cve/CVE-2026-88841"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1282653 for CVE-2026-88841",
          "url": "https://bugzilla.suse.com/1282653"
        }
      ],
      "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 Micro 6.0:busybox-0:1.36.1-159998.1.1.aarch64",
            "SUSE Linux Micro 6.0:busybox-0:1.36.1-159998.1.1.s390x",
            "SUSE Linux Micro 6.0:busybox-0:1.36.1-159998.1.1.x86_64"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 4.4,
            "baseSeverity": "MEDIUM",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L",
            "version": "3.1"
          },
          "products": [
            "SUSE Linux Micro 6.0:busybox-0:1.36.1-159998.1.1.aarch64",
            "SUSE Linux Micro 6.0:busybox-0:1.36.1-159998.1.1.s390x",
            "SUSE Linux Micro 6.0:busybox-0:1.36.1-159998.1.1.x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "date": "2026-10-10T16:41:24Z",
          "details": "moderate"
        }
      ],
      "title": "CVE-2026-88841"
    }
  ]
}



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