{"answers":{"affected":"7 open source packages ship an affected version, including django and Django. It affects 3 products.","exploited":"There is no known exploitation of CVE-2018-7537 in the wild and no public exploit code.","fix":"Upgrade django to a fixed version for your release line: 1.11.11, 1.8.19 or 2.0.3.","what":"CVE-2018-7537 is a medium-severity denial of service vulnerability in Canonical Ubuntu Linux, published on 9 Mar 2018. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2018-7537 and fix it if it is affected.\n\nWhat it is: CVE-2018-7537 is a medium-severity denial of service vulnerability in Canonical Ubuntu Linux, published on 9 Mar 2018. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2018-7537 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- django (PyPI): affected from 1.11; fixed in 1.11.11\n- django (PyPI): affected from 1.8; fixed in 1.8.19, 1.11.11, 2.0.3\n- django (PyPI): affected from 1.8; fixed in 1.8.19\n- django (PyPI): affected from 2.0; fixed in 2.0.3\n- Django (PyPI): affected from 1.11; fixed in 1.11.11\n- Django (PyPI): affected from 1.8; fixed in 1.8.19\n- Django (PyPI): affected from 2.0; fixed in 2.0.3\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2018-7537/ (Markdown: https://insights.sbomify.com/CVE-2018-7537/index.md)","id":"CVE-2018-7537","markdown":"https://insights.sbomify.com/CVE-2018-7537/index.md","name":"CVE-2018-7537","record":{"aliases":["ALPINE-CVE-2018-7537","DEBIAN-CVE-2018-7537","GHSA-2f9x-5v75-3qv4","PYSEC-2018-6","UBUNTU-CVE-2018-7537"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"Django web framework","requires_auth":"none","summary":"Attackers can cause denial of service in Django applications using specific HTML truncation filters due to catastrophic regex backtracking.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"mitre","cpe":[{"product":"ubuntu_linux","vendor":"canonical"},{"product":"debian_linux","vendor":"debian"},{"product":"django","vendor":"djangoproject"}],"cvss":{"score":5.3,"severity":"medium","source":"nvd","vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","version":"3.0"},"cwes":[{"id":"CWE-185","name":"Incorrect Regular Expression"}],"description":"An issue was discovered in Django 2.0 before 2.0.3, 1.11 before 1.11.11, and 1.8 before 1.8.19. If django.utils.text.Truncator's chars() and words() methods were passed the html=True argument, they were extremely slow to evaluate certain inputs due to a catastrophic backtracking vulnerability in a regular expression. The chars() and words() methods are used to implement the truncatechars_html and truncatewords_html template filters, which were thus vulnerable.","ecosystems":["PyPI"],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":true,"headline":"Django Denial-of-service possibility in truncatechars_html and truncatewords_html template filters","id":"CVE-2018-7537","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"PyPI","product":"canonical:ubuntu_linux","products":["canonical:ubuntu_linux","debian:debian_linux","djangoproject:django"],"type":"denial_of_service","year":"2018"},"n_packages":7,"n_references":7,"next":{"headline":"SQL injection in n/a","id":"CVE-2018-7538"},"packages":[{"ecosystem":"PyPI","fixed":["1.11.11"],"introduced":["1.11"],"last_affected":[],"package":"Django","purl":null,"source":"GHSA-2f9x-5v75-3qv4"},{"ecosystem":"PyPI","fixed":["1.8.19"],"introduced":["1.8"],"last_affected":[],"package":"Django","purl":null,"source":"GHSA-2f9x-5v75-3qv4"},{"ecosystem":"PyPI","fixed":["2.0.3"],"introduced":["2.0"],"last_affected":[],"package":"Django","purl":null,"source":"GHSA-2f9x-5v75-3qv4"},{"ecosystem":"PyPI","fixed":["1.11.11"],"introduced":["1.11"],"last_affected":[],"package":"django","purl":"pkg:pypi/django","source":"GHSA-2f9x-5v75-3qv4"},{"ecosystem":"PyPI","fixed":["1.8.19","1.11.11","2.0.3"],"introduced":["1.8","1.11","2.0"],"last_affected":[],"package":"django","purl":"pkg:pypi/django","source":"PYSEC-2018-6"},{"ecosystem":"PyPI","fixed":["1.8.19"],"introduced":["1.8"],"last_affected":[],"package":"django","purl":"pkg:pypi/django","source":"GHSA-2f9x-5v75-3qv4"},{"ecosystem":"PyPI","fixed":["2.0.3"],"introduced":["2.0"],"last_affected":[],"package":"django","purl":"pkg:pypi/django","source":"GHSA-2f9x-5v75-3qv4"}],"prev":{"headline":"Django denial-of-service possibility in urlize and urlizetrunc template filters","id":"CVE-2018-7536"},"products":["n/a"],"published":"2018-03-09","related":[{"cvss_score":9.8,"headline":"SaltStack Salt Authentication Bypass","id":"CVE-2020-11651","kev_date_added":"2021-11-03","published":"2020-04-30"},{"cvss_score":9.8,"headline":"OpenSMTPD Remote Code Execution","id":"CVE-2020-7247","kev_date_added":"2022-03-25","published":"2020-01-29"},{"cvss_score":9.8,"headline":"Exim Out-of-bounds Write","id":"CVE-2019-16928","kev_date_added":"2022-03-03","published":"2019-09-27"},{"cvss_score":9.8,"headline":"Exim Buffer Overflow","id":"CVE-2018-6789","kev_date_added":"2021-11-03","published":"2018-02-08"},{"cvss_score":9.8,"headline":"Oracle Java SE and Java SE Embedded Remote Code Execution","id":"CVE-2015-2590","kev_date_added":"2022-03-03","published":"2015-07-16"},{"cvss_score":9.8,"headline":"Oracle JRE Remote Code Execution","id":"CVE-2013-0422","kev_date_added":"2022-05-25","published":"2013-01-10"},{"cvss_score":9.8,"headline":"Oracle Java SE Runtime Environment (JRE) Arbitrary Code Execution","id":"CVE-2011-3544","kev_date_added":"2022-03-03","published":"2011-10-19"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CC BY 4.0","name":"GitHub Advisory Database","prefix":"GHSA"},{"class":"attribution","licence":"CC BY 4.0","name":"PyPA Advisory Database","prefix":"PYSEC"},{"class":"attribution","licence":"US public information, NVD API terms","name":"NVD"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2024-08-05","vendors":["n/a"]},"summary":"Attackers can cause denial of service in Django applications using specific HTML truncation filters due to catastrophic regex backtracking.","url":"https://insights.sbomify.com/CVE-2018-7537/"}