Vulnerability-Lookup

OESA-2021-1210 (CVE-2021-29468)

Vulnerability from osv_openeuler – Published: 2021-06-07 11:04 – Updated: 2026-08-06 11:04 – Source website

Summary

git security update

Details

Git is a free and open source distributed version control system designed to handle everything from small to very large projects with speed and efficiency. Git is easy to learn and has a tiny footprint with lightning fast performance. It outclasses SCM tools like Subversion, CVS, Perforce, and ClearCase with features like cheap local branching, convenient staging areas, and multiple workflows.

Security Fix(es):

Cygwin Git is a patch set for the git command line tool for the cygwin environment. A specially crafted repository that contains symbolic links as well as files with backslash characters in the file name may cause just-checked out code to be executed while checking out a repository using Git on Cygwin. The problem will be patched in the Cygwin Git v2.31.1-2 release. At time of writing, the vulnerability is present in the upstream Git source code; any Cygwin user who compiles Git for themselves from upstream sources should manually apply a patch to mitigate the vulnerability. As mitigation users should not clone or pull from repositories from untrusted sources. CVE-2019-1354 was an equivalent vulnerability in Git for Visual Studio.(CVE-2021-29468)

Severity

8.8 (High)


                    
                      CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

References

URL

Type

	https://openeuler.org/en/security/safety-bulletin…	ADVISORY
	https://nvd.nist.gov/vuln/detail/CVE-2021-29468	ADVISORY

JSON

To clipboard

{
  "affected": [
    {
      "ecosystem_specific": {
        "aarch64": [
          "git-debuginfo-2.27.0-4.oe1.aarch64.rpm",
          "git-debugsource-2.27.0-4.oe1.aarch64.rpm",
          "git-daemon-2.27.0-4.oe1.aarch64.rpm",
          "git-2.27.0-4.oe1.aarch64.rpm"
        ],
        "noarch": [
          "perl-Git-SVN-2.27.0-4.oe1.noarch.rpm",
          "git-svn-2.27.0-4.oe1.noarch.rpm",
          "git-help-2.27.0-4.oe1.noarch.rpm",
          "perl-Git-2.27.0-4.oe1.noarch.rpm",
          "git-gui-2.27.0-4.oe1.noarch.rpm",
          "git-web-2.27.0-4.oe1.noarch.rpm",
          "gitk-2.27.0-4.oe1.noarch.rpm",
          "git-email-2.27.0-4.oe1.noarch.rpm"
        ],
        "src": [
          "git-2.27.0-4.oe1.src.rpm"
        ],
        "x86_64": [
          "git-2.27.0-4.oe1.x86_64.rpm",
          "git-daemon-2.27.0-4.oe1.x86_64.rpm",
          "git-debuginfo-2.27.0-4.oe1.x86_64.rpm",
          "git-debugsource-2.27.0-4.oe1.x86_64.rpm"
        ]
      },
      "package": {
        "ecosystem": "openEuler:20.03-LTS-SP1",
        "name": "git",
        "purl": "pkg:rpm/openEuler/git\u0026distro=openEuler-20.03-LTS-SP1"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.27.0-4.oe1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "severity": "High"
  },
  "details": "Git is a free and open source distributed version control system designed to handle everything from small to very large projects with speed and efficiency.\nGit is easy to learn and has a tiny footprint with lightning fast performance. It outclasses SCM tools like Subversion, CVS, Perforce, and ClearCase with features like cheap local branching, convenient staging areas, and multiple workflows.\r\n\r\nSecurity Fix(es):\r\n\r\nCygwin Git is a patch set for the git command line tool for the cygwin environment. A specially crafted repository that contains symbolic links as well as files with backslash characters in the file name may cause just-checked out code to be executed while checking out a repository using Git on Cygwin. The problem will be patched in the Cygwin Git v2.31.1-2 release. At time of writing, the vulnerability is present in the upstream Git source code; any Cygwin user who compiles Git for themselves from upstream sources should manually apply a patch to mitigate the vulnerability. As mitigation users should not clone or pull from repositories from untrusted sources. CVE-2019-1354 was an equivalent vulnerability in Git for Visual Studio.(CVE-2021-29468)",
  "id": "OESA-2021-1210",
  "modified": "2026-08-06T11:04:27Z",
  "published": "2021-06-07T11:04:27Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://openeuler.org/en/security/safety-bulletin/detail.html?id=openEuler-SA-2021-1210"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-29468"
    }
  ],
  "schema_version": "1.7.2",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "git security update",
  "upstream": [
    "CVE-2021-29468"
  ]
}

CVE-2021-29468 (GCVE-0-2021-29468)

Vulnerability from cvelistv5 – Published: 2021-04-29 20:35 – Updated: 2024-08-03 22:11

Title

Arbitrary code execution when checking out an attacker-controlled Git branch

Summary

Severity

8.8 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

CWE

CWE-20 - Improper Input Validation

Assigner

GitHub_M mitre root

References

4 references

URL	Tags
https://github.com/me-and/Cygwin-Git/security/adv…	x_refsource_CONFIRM
https://github.com/me-and/Cygwin-Git/blob/main/ch…	x_refsource_MISC
https://cygwin.com/pipermail/cygwin-announce/2021…	x_refsource_MISC
https://lore.kernel.org/git/CA+kUOa=juEdBMVr_gyTK…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
me-and	Cygwin-Git	Affected: < 2.31.1-2

Show details on NVD website

JSON

To clipboard

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Sightings

Author	Source	Type	Date	Other

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.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.