CVE catalog

CVE-2023-30571

libarchive affected and fixed versions

Libarchive through 3.6.2 can cause directories to have world-writable permissions. The umask() call inside archive_write_disk_posix.c changes the umask of the whole process for a very short period of time; a race condition with another thread can lead to a permanent umask 0 setting. Such a race condition could lead to implicit directory creation with permissions 0777 (without the sticky bit), which means that any low-privileged local user can delete and rename files inside those directories.

Severity: Medium · CVSS 5.3CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:H
Published: May 29, 2023, 12:00:00 AM UTC
Source: [NVD] · [CVE record]
EPSS: 0.19% · Oct 27, 2026

Projects and upstream resources

[libarchive][Source-reported homepage]

Reported versions and fixes

Each observation applies to its named package, distribution, and release. Distribution backports can fix a vulnerability while retaining an older upstream version number.

Version impact has not been established. The original provider fields are retained below.

Provider details and historical evidence

Original provider fields

{
  "package_releases": [
    {
      "name": "libarchive",
      "status": "vulnerable",
      "release": "sid",
      "version": "3.8.10-2"
    },
    {
      "name": "libarchive",
      "status": "vulnerable",
      "release": "forky",
      "version": "3.8.9-1"
    },
    {
      "name": "libarchive",
      "status": "vulnerable",
      "release": "trixie",
      "version": "3.7.4-4+deb13u1"
    },
    {
      "name": "libarchive",
      "status": "vulnerable",
      "release": "bookworm",
      "version": "3.6.2-1+deb12u4"
    },
    {
      "name": "libarchive",
      "status": "vulnerable",
      "release": "bookworm-security",
      "version": "3.6.2-1+deb12u5"
    }
  ],
  "fixed_versions": [
    {
      "bug": 1037093,
      "name": "libarchive",
      "type": "source",
      "origin": null,
      "release": "sid",
      "urgency": "unimportant",
      "fixed_version": ""
    },
    {
      "bug": 1037093,
      "name": "libarchive",
      "type": "source",
      "origin": null,
      "release": "forky",
      "urgency": "unimportant",
      "fixed_version": ""
    },
    {
      "bug": 1037093,
      "name": "libarchive",
      "type": "source",
      "origin": null,
      "release": "trixie",
      "urgency": "unimportant",
      "fixed_version": ""
    },
    {
      "bug": 1037093,
      "name": "libarchive",
      "type": "source",
      "origin": null,
      "release": "bookworm",
      "urgency": "unimportant",
      "fixed_version": ""
    }
  ],
  "distribution_packages": [
    {
      "name": "libarchive",
      "distro": "ubuntu",
      "ranges": [
        {
          "type": "ECOSYSTEM",
          "events": [
            {
              "introduced": "0"
            }
          ]
        }
      ],
      "release": "pro",
      "versions": [
        "3.4.0-1",
        "3.4.0-1build1",
        "3.4.0-1ubuntu2",
        "3.4.0-2ubuntu1",
        "3.4.0-2ubuntu1.1",
        "3.4.0-2ubuntu1.2",
        "3.4.0-2ubuntu1.3",
        "3.4.0-2ubuntu1.4",
        "3.4.0-2ubuntu1.5",
        "3.4.0-2ubuntu1.5+esm1",
        "3.4.0-2ubuntu1.5+esm2",
        "3.4.0-2ubuntu1.5+esm3"
      ],
      "ecosystem": "deb",
      "fixed_version": "",
      "provider_record_id": "UBUNTU-CVE-2023-30571"
    },
    {
      "name": "libarchive",
      "distro": "ubuntu",
      "ranges": [
        {
          "type": "ECOSYSTEM",
          "events": [
            {
              "introduced": "0"
            }
          ]
        }
      ],
      "release": "22.04",
      "versions": [
        "3.4.3-2",
        "3.4.3-2build1",
        "3.5.2-1",
        "3.5.2-1ubuntu1",
        "3.6.0-1ubuntu1",
        "3.6.0-1ubuntu1.1",
        "3.6.0-1ubuntu1.2",
        "3.6.0-1ubuntu1.3",
        "3.6.0-1ubuntu1.4",
        "3.6.0-1ubuntu1.5",
        "3.6.0-1ubuntu1.6",
        "3.6.0-1ubuntu1.7",
        "3.6.0-1ubuntu1.8",
        "3.6.0-1ubuntu1.9"
      ],
      "ecosystem": "deb",
      "fixed_version": "",
      "provider_record_id": "UBUNTU-CVE-2023-30571"
    }
  ]
}

[Debian bug #1037093]

OpenFactory catalog packages

Matching against OpenFactory catalog package versions is in progress.

[Debian 12 (Bookworm)]

[libarchive13]Unknown
Source package: [libarchive]
Details (4)
- 3.6.2-1+deb12u4 · amd64 · bookworm
  Affected
  dsa · libarchive · debian · bookworm; dsa · libarchive · debian · 12
- 3.6.2-1+deb12u4 · arm64 · bookworm
  Affected
  dsa · libarchive · debian · bookworm; dsa · libarchive · debian · 12
- 3.6.2-1+deb12u5 · amd64 · bookworm-security
  Affected
  dsa · libarchive · debian · bookworm; dsa · libarchive · debian · 12
- 3.6.2-1+deb12u5 · arm64 · bookworm-security
  Affected
  dsa · libarchive · debian · bookworm; dsa · libarchive · debian · 12
[libarchive-dev]Unknown
Source package: [libarchive]
Details (4)
- 3.6.2-1+deb12u4 · amd64 · bookworm
  Affected
  dsa · libarchive · debian · bookworm; dsa · libarchive · debian · 12
- 3.6.2-1+deb12u4 · arm64 · bookworm
  Affected
  dsa · libarchive · debian · bookworm; dsa · libarchive · debian · 12
- 3.6.2-1+deb12u5 · amd64 · bookworm-security
  Affected
  dsa · libarchive · debian · bookworm; dsa · libarchive · debian · 12
- 3.6.2-1+deb12u5 · arm64 · bookworm-security
  Affected
  dsa · libarchive · debian · bookworm; dsa · libarchive · debian · 12
[libarchive-tools]Unknown
Source package: [libarchive]
Details (4)
- 3.6.2-1+deb12u4 · amd64 · bookworm
  Affected
  dsa · libarchive · debian · bookworm; dsa · libarchive · debian · 12
- 3.6.2-1+deb12u4 · arm64 · bookworm
  Affected
  dsa · libarchive · debian · bookworm; dsa · libarchive · debian · 12
- 3.6.2-1+deb12u5 · amd64 · bookworm-security
  Affected
  dsa · libarchive · debian · bookworm; dsa · libarchive · debian · 12
- 3.6.2-1+deb12u5 · arm64 · bookworm-security
  Affected
  dsa · libarchive · debian · bookworm; dsa · libarchive · debian · 12

[Debian 13 (Trixie)]

[libarchive13t64]Unknown
Source package: [libarchive]
Details (2)
- 3.7.4-4+deb13u1 · amd64 · trixie
  Affected
  dsa · libarchive · debian · 13
- 3.7.4-4+deb13u1 · arm64 · trixie
  Affected
  dsa · libarchive · debian · 13
[libarchive-dev]Unknown
Source package: [libarchive]
Details (2)
- 3.7.4-4+deb13u1 · amd64 · trixie
  Affected
  dsa · libarchive · debian · 13
- 3.7.4-4+deb13u1 · arm64 · trixie
  Affected
  dsa · libarchive · debian · 13
[libarchive-tools]Unknown
Source package: [libarchive]
Details (2)
- 3.7.4-4+deb13u1 · amd64 · trixie
  Affected
  dsa · libarchive · debian · 13
- 3.7.4-4+deb13u1 · arm64 · trixie
  Affected
  dsa · libarchive · debian · 13

Observed: Oct 28, 2026, 5:46:03 PM UTC

References

[CERT-Bund public advisories] · [Debian Security Tracker] · [FIRST EPSS] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX]