CVE-2024-53920
Vulnerability from cvelistv5
Published
2024-11-27 00:00
Modified
2025-03-13 19:25
Severity ?
7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Summary
In elisp-mode.el in GNU Emacs before 30.1, a user who chooses to invoke elisp-completion-at-point (for code completion) on untrusted Emacs Lisp source code can trigger unsafe Lisp macro expansion that allows attackers to execute arbitrary code. (This unsafe expansion also occurs if a user chooses to enable on-the-fly diagnosis that byte compiles untrusted Emacs Lisp source code.)
References
cve@mitre.orghttps://eshelyaron.com/posts/2024-11-27-emacs-aritrary-code-execution-and-how-to-avoid-it.html
cve@mitre.orghttps://git.savannah.gnu.org/cgit/emacs.git/tag/?h=emacs-30.0.92
cve@mitre.orghttps://git.savannah.gnu.org/cgit/emacs.git/tree/ChangeLog.4
cve@mitre.orghttps://git.savannah.gnu.org/cgit/emacs.git/tree/etc/NEWS?h=emacs-30.1
cve@mitre.orghttps://news.ycombinator.com/item?id=42256409
cve@mitre.orghttps://yhetil.org/emacs/CAFXAjY5f4YfHAtZur1RAqH34UbYU56_t6t2Er0YEh1Sb7-W=hg@mail.gmail.com/
Impacted products
Vendor Product Version
n/a n/a Version: n/a
Show details on NVD website

To clipboard 

{
   containers: {
      adp: [
         {
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               {
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                     "cpe:2.3:a:gnu:emacs:-:*:*:*:*:*:*:*",
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                  product: "emacs",
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            metrics: [
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                     attackVector: "LOCAL",
                     availabilityImpact: "HIGH",
                     baseScore: 7.8,
                     baseSeverity: "HIGH",
                     confidentialityImpact: "HIGH",
                     integrityImpact: "HIGH",
                     privilegesRequired: "NONE",
                     scope: "UNCHANGED",
                     userInteraction: "REQUIRED",
                     vectorString: "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
                     version: "3.1",
                  },
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                              Exploitation: "poc",
                           },
                           {
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                           },
                           {
                              "Technical Impact": "total",
                           },
                        ],
                        role: "CISA Coordinator",
                        timestamp: "2024-12-02T16:55:56.437957Z",
                        version: "2.0.3",
                     },
                     type: "ssvc",
                  },
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            ],
            problemTypes: [
               {
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                        description: "CWE-94 Improper Control of Generation of Code ('Code Injection')",
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            providerMetadata: {
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               orgId: "134c704f-9b21-4f2e-91b3-4a467353bcc0",
               shortName: "CISA-ADP",
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      cna: {
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            shortName: "mitre",
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               url: "https://git.savannah.gnu.org/cgit/emacs.git/tree/ChangeLog.4",
            },
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               url: "https://git.savannah.gnu.org/cgit/emacs.git/tag/?h=emacs-30.0.92",
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               url: "https://eshelyaron.com/posts/2024-11-27-emacs-aritrary-code-execution-and-how-to-avoid-it.html",
            },
            {
               url: "https://yhetil.org/emacs/CAFXAjY5f4YfHAtZur1RAqH34UbYU56_t6t2Er0YEh1Sb7-W=hg@mail.gmail.com/",
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            {
               url: "https://git.savannah.gnu.org/cgit/emacs.git/tree/etc/NEWS?h=emacs-30.1",
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   cveMetadata: {
      assignerOrgId: "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
      assignerShortName: "mitre",
      cveId: "CVE-2024-53920",
      datePublished: "2024-11-27T00:00:00.000Z",
      dateReserved: "2024-11-25T00:00:00.000Z",
      dateUpdated: "2025-03-13T19:25:55.594Z",
      state: "PUBLISHED",
   },
   dataType: "CVE_RECORD",
   dataVersion: "5.1",
   "vulnerability-lookup:meta": {
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      vulnrichment: {
         containers: "{\"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"cvssV3_1\": {\"scope\": \"UNCHANGED\", \"version\": \"3.1\", \"baseScore\": 7.8, \"attackVector\": \"LOCAL\", \"baseSeverity\": \"HIGH\", \"vectorString\": \"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H\", \"integrityImpact\": \"HIGH\", \"userInteraction\": \"REQUIRED\", \"attackComplexity\": \"LOW\", \"availabilityImpact\": \"HIGH\", \"privilegesRequired\": \"NONE\", \"confidentialityImpact\": \"HIGH\"}}, {\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2024-53920\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"poc\"}, {\"Automatable\": \"yes\"}, {\"Technical Impact\": \"total\"}], \"version\": \"2.0.3\", \"timestamp\": \"2024-12-02T16:55:56.437957Z\"}}}], \"affected\": [{\"cpes\": [\"cpe:2.3:a:gnu:emacs:-:*:*:*:*:*:*:*\"], \"vendor\": \"gnu\", \"product\": \"emacs\", \"versions\": [{\"status\": \"affected\", \"version\": \"30.0.92\"}], \"defaultStatus\": \"unknown\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-94\", \"description\": \"CWE-94 Improper Control of Generation of Code ('Code Injection')\"}]}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2024-12-02T16:57:47.483Z\"}}], \"cna\": {\"affected\": [{\"vendor\": \"n/a\", \"product\": \"n/a\", \"versions\": [{\"status\": \"affected\", \"version\": \"n/a\"}]}], \"references\": [{\"url\": \"https://git.savannah.gnu.org/cgit/emacs.git/tree/ChangeLog.4\"}, {\"url\": \"https://git.savannah.gnu.org/cgit/emacs.git/tag/?h=emacs-30.0.92\"}, {\"url\": \"https://eshelyaron.com/posts/2024-11-27-emacs-aritrary-code-execution-and-how-to-avoid-it.html\"}, {\"url\": \"https://yhetil.org/emacs/CAFXAjY5f4YfHAtZur1RAqH34UbYU56_t6t2Er0YEh1Sb7-W=hg@mail.gmail.com/\"}, {\"url\": \"https://news.ycombinator.com/item?id=42256409\"}, {\"url\": \"https://git.savannah.gnu.org/cgit/emacs.git/tree/etc/NEWS?h=emacs-30.1\"}], \"descriptions\": [{\"lang\": \"en\", \"value\": \"In elisp-mode.el in GNU Emacs before 30.1, a user who chooses to invoke elisp-completion-at-point (for code completion) on untrusted Emacs Lisp source code can trigger unsafe Lisp macro expansion that allows attackers to execute arbitrary code. (This unsafe expansion also occurs if a user chooses to enable on-the-fly diagnosis that byte compiles untrusted Emacs Lisp source code.)\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"text\", \"description\": \"n/a\"}]}], \"providerMetadata\": {\"orgId\": \"8254265b-2729-46b6-b9e3-3dfca2d5bfca\", \"shortName\": \"mitre\", \"dateUpdated\": \"2025-03-01T05:20:27.548Z\"}}}",
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}


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