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DEBIAN-CVE-2026-58058

Type: advisorySource: OSV1 source record

Nmap through 7.99 does not keep the IPv6 extension-header walk within the captured packet in ipv6_get_data_primitive (libnetutil/netutil.cc), so the pointer advances past the buffer and the remaining-length computation underflows to a large value. A scanned target or on-path attacker returning a crafted IPv6 response with a truncated extension header can trigger out-of-bounds reads and a crash during raw IPv6 scans.

Announced Source revision 1
Original source ↗

DEBIAN-CVE-2026-58058

Primary source · Revision 1

Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.

Security context

Source reference: osv:DEBIAN-CVE-2026-58058

nmap

Source reference: /affected/0/package/name

Affected versions
7.93+dfsg1-1

Source reference: /affected/0/versions

7.94+dfsg1-1

Source reference: /affected/0/versions

7.94+dfsg1-1~exp1

Source reference: /affected/0/versions

7.94+dfsg1-2

Source reference: /affected/0/versions

7.94+dfsg1-3

Source reference: /affected/0/versions

7.94+dfsg1-3~bpo12+1

Source reference: /affected/0/versions

7.94+dfsg1-4

Source reference: /affected/0/versions

7.94+git20230807.3be01efb1+dfsg-1

Source reference: /affected/0/versions

7.94+git20230807.3be01efb1+dfsg-1~bpo12+1

Source reference: /affected/0/versions

7.94+git20230807.3be01efb1+dfsg-2

Source reference: /affected/0/versions

7.94+git20230807.3be01efb1+dfsg-3

Source reference: /affected/0/versions

7.94+git20230807.3be01efb1+dfsg-4

Source reference: /affected/0/versions

7.94+git20230807.3be01efb1+dfsg-4~bpo12+1

Source reference: /affected/0/versions

7.95+dfsg-1

Source reference: /affected/0/versions

7.95+dfsg-2

Source reference: /affected/0/versions

7.95+dfsg-3

Source reference: /affected/0/versions

7.98+dfsg-1

Source reference: /affected/0/versions

7.98+dfsg-1~bpo13+1

Source reference: /affected/0/versions

7.99+dfsg-1

Source reference: /affected/0/versions

7.99+dfsg-2

Source reference: /affected/0/versions

Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

nmap

Source reference: /affected/1/package/name

Affected versions
7.95+dfsg-3

Source reference: /affected/1/versions

7.98+dfsg-1

Source reference: /affected/1/versions

7.98+dfsg-1~bpo13+1

Source reference: /affected/1/versions

7.99+dfsg-1

Source reference: /affected/1/versions

7.99+dfsg-2

Source reference: /affected/1/versions

Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

nmap

Source reference: /affected/2/package/name

Affected versions
7.95+dfsg-3

Source reference: /affected/2/versions

7.98+dfsg-1

Source reference: /affected/2/versions

7.98+dfsg-1~bpo13+1

Source reference: /affected/2/versions

7.99+dfsg-1

Source reference: /affected/2/versions

Fixed versions
7.99+dfsg-2

Source reference: /affected/2/ranges

Prerequisites
Not stated in this record

Structured affected-version data

Original package identities and version rules from this source.

[
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          }
        ]
      }
    ],
    "package": {
      "name": "nmap",
      "purl": "pkg:deb/debian/nmap?arch=source&distro=bookworm",
      "ecosystem": "Debian:12"
    },
    "versions": [
      "7.93+dfsg1-1",
      "7.94+dfsg1-1",
      "7.94+dfsg1-1~exp1",
      "7.94+dfsg1-2",
      "7.94+dfsg1-3",
      "7.94+dfsg1-3~bpo12+1",
      "7.94+dfsg1-4",
      "7.94+git20230807.3be01efb1+dfsg-1",
      "7.94+git20230807.3be01efb1+dfsg-1~bpo12+1",
      "7.94+git20230807.3be01efb1+dfsg-2",
      "7.94+git20230807.3be01efb1+dfsg-3",
      "7.94+git20230807.3be01efb1+dfsg-4",
      "7.94+git20230807.3be01efb1+dfsg-4~bpo12+1",
      "7.95+dfsg-1",
      "7.95+dfsg-2",
      "7.95+dfsg-3",
      "7.98+dfsg-1",
      "7.98+dfsg-1~bpo13+1",
      "7.99+dfsg-1",
      "7.99+dfsg-2"
    ],
    "database_specific": {
      "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-58058.json"
    },
    "ecosystem_specific": {
      "urgency": "unimportant"
    }
  },
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          }
        ]
      }
    ],
    "package": {
      "name": "nmap",
      "purl": "pkg:deb/debian/nmap?arch=source&distro=trixie",
      "ecosystem": "Debian:13"
    },
    "versions": [
      "7.95+dfsg-3",
      "7.98+dfsg-1",
      "7.98+dfsg-1~bpo13+1",
      "7.99+dfsg-1",
      "7.99+dfsg-2"
    ],
    "database_specific": {
      "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-58058.json"
    },
    "ecosystem_specific": {
      "urgency": "unimportant"
    }
  },
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          },
          {
            "fixed": "7.99+dfsg-2"
          }
        ]
      }
    ],
    "package": {
      "name": "nmap",
      "purl": "pkg:deb/debian/nmap?arch=source&distro=forky",
      "ecosystem": "Debian:14"
    },
    "versions": [
      "7.95+dfsg-3",
      "7.98+dfsg-1",
      "7.98+dfsg-1~bpo13+1",
      "7.99+dfsg-1"
    ],
    "database_specific": {
      "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-58058.json"
    },
    "ecosystem_specific": {
      "urgency": "unimportant"
    }
  }
]

Publisher severity

No explicit severity was provided.

Event
#58010 · Revision 1
Added to Heist Feed
Publisher date
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