Vulnerabilites related to gnu - bison
Vulnerability from fkie_nvd
Published
2020-08-25 14:15
Modified
2024-11-21 05:14
Severity ?
5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Summary
GNU Bison before 3.7.1 has a use-after-free in _obstack_free in lib/obstack.c (called from gram_lex) when a '\0' byte is encountered. NOTE: there is a risk only if Bison is used with untrusted input, and the observed bug happens to cause unsafe behavior with a specific compiler/architecture. The bug report was intended to show that a crash may occur in Bison itself, not that a crash may occur in code that is generated by Bison.
References
cve@mitre.orghttps://github.com/akimd/bison/commit/be95a4fe2951374676efc9454ffee8638faaf68dPatch, Third Party Advisory
cve@mitre.orghttps://github.com/akimd/bison/compare/v3.7...v3.7.1Third Party Advisory
cve@mitre.orghttps://lists.gnu.org/r/bug-bison/2020-07/msg00051.htmlMailing List, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/akimd/bison/commit/be95a4fe2951374676efc9454ffee8638faaf68dPatch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/akimd/bison/compare/v3.7...v3.7.1Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://lists.gnu.org/r/bug-bison/2020-07/msg00051.htmlMailing List, Vendor Advisory
Impacted products
Vendor Product Version
gnu bison 3.7


To clipboard 

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Vulnerability from fkie_nvd
Published
2020-06-15 17:15
Modified
2024-11-21 05:02
Severity ?
5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Summary
GNU Bison before 3.5.4 allows attackers to cause a denial of service (application crash). NOTE: there is a risk only if Bison is used with untrusted input, and an observed bug happens to cause unsafe behavior with a specific compiler/architecture. The bug reports were intended to show that a crash may occur in Bison itself, not that a crash may occur in code that is generated by Bison.
References
cve@mitre.orghttps://bugs.gentoo.org/717936Issue Tracking, Third Party Advisory
cve@mitre.orghttps://lists.gnu.org/archive/html/info-gnu/2020-04/msg00000.htmlMailing List, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://bugs.gentoo.org/717936Issue Tracking, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://lists.gnu.org/archive/html/info-gnu/2020-04/msg00000.htmlMailing List, Vendor Advisory
Impacted products
Vendor Product Version
gnu bison *


To clipboard 

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CVE-2020-24240 (GCVE-0-2020-24240)
Vulnerability from cvelistv5
Published
2020-08-25 13:45
Modified
2024-08-04 15:12
Severity ?
CWE
  • n/a
Summary
GNU Bison before 3.7.1 has a use-after-free in _obstack_free in lib/obstack.c (called from gram_lex) when a '\0' byte is encountered. NOTE: there is a risk only if Bison is used with untrusted input, and the observed bug happens to cause unsafe behavior with a specific compiler/architecture. The bug report was intended to show that a crash may occur in Bison itself, not that a crash may occur in code that is generated by Bison.
References
https://github.com/akimd/bison/commit/be95a4fe2951374676efc9454ffee8638faaf68dx_refsource_MISC
https://lists.gnu.org/r/bug-bison/2020-07/msg00051.htmlx_refsource_MISC
https://github.com/akimd/bison/compare/v3.7...v3.7.1x_refsource_MISC
Impacted products
Vendor Product Version
n/a n/a Version: n/a
Show details on NVD website

To clipboard 

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CVE-2020-14150 (GCVE-0-2020-14150)
Vulnerability from cvelistv5
Published
2020-06-15 16:52
Modified
2024-08-04 12:39
Severity ?
CWE
  • n/a
Summary
GNU Bison before 3.5.4 allows attackers to cause a denial of service (application crash). NOTE: there is a risk only if Bison is used with untrusted input, and an observed bug happens to cause unsafe behavior with a specific compiler/architecture. The bug reports were intended to show that a crash may occur in Bison itself, not that a crash may occur in code that is generated by Bison.
References
https://lists.gnu.org/archive/html/info-gnu/2020-04/msg00000.htmlx_refsource_MISC
https://bugs.gentoo.org/717936x_refsource_MISC
Impacted products
Vendor Product Version
n/a n/a Version: n/a
Show details on NVD website

To clipboard 

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    "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
    "assignerShortName": "mitre",
    "cveId": "CVE-2020-14150",
    "datePublished": "2020-06-15T16:52:10",
    "dateReserved": "2020-06-15T00:00:00",
    "dateUpdated": "2024-08-04T12:39:36.138Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}