{"answers":{"affected":"It affects 8 products.","exploited":"There is no known exploitation of CVE-2019-12527 in the wild and no public exploit code.","fix":"Upgrade to a fixed version.","what":"CVE-2019-12527 is a high-severity memory corruption vulnerability in Canonical Ubuntu Linux, published on 11 Jul 2019. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link."},"fix_prompt":"Check this codebase for CVE-2019-12527 and fix it if it is affected.\n\nWhat it is: CVE-2019-12527 is a high-severity memory corruption vulnerability in Canonical Ubuntu Linux, published on 11 Jul 2019. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.\nExploitation: There is no known exploitation of CVE-2019-12527 in the wild and no public exploit code.\n\nAffected product: Canonical Ubuntu Linux. No package-level version data is available, so check the vendor advisory linked from the reference page.\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-2019-12527/ (Markdown: https://insights.sbomify.com/CVE-2019-12527/index.md)","id":"CVE-2019-12527","markdown":"https://insights.sbomify.com/CVE-2019-12527/index.md","name":"CVE-2019-12527","record":{"aliases":["ALSA-2019:2593","DEBIAN-CVE-2019-12527","GHSA-8x4r-gffh-rx7f","RHSA-2019:2593","RLSA-2019:2593"],"analysis":{"component_type":"server_software","fix_type":"upgrade","impacts":["code_execution","denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"Squid proxy server","requires_auth":"none","summary":"Heap-based buffer overflow in Squid proxy allows attackers to execute arbitrary code or cause denial of service via crafted Basic Authentication headers.","user_interaction":"required","vuln_class":"memory_corruption"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"mitre","cpe":[{"product":"ubuntu_linux","vendor":"canonical"},{"product":"debian_linux","vendor":"debian"},{"product":"fedora","vendor":"fedoraproject"},{"product":"enterprise_linux","vendor":"redhat"},{"product":"enterprise_linux_eus","vendor":"redhat"},{"product":"enterprise_linux_server_aus","vendor":"redhat"},{"product":"enterprise_linux_server_tus","vendor":"redhat"},{"product":"squid","vendor":"squid-cache"}],"cvss":{"score":8.8,"severity":"high","source":"nvd","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","version":"3.1"},"cwes":[{"id":"CWE-787","name":"Out-of-bounds Write"}],"description":"An issue was discovered in Squid 4.0.23 through 4.7. When checking Basic Authentication with HttpHeader::getAuth, Squid uses a global buffer to store the decoded data. Squid does not check that the decoded length isn't greater than the buffer, leading to a heap-based buffer overflow with user controlled data.","ecosystems":["AlmaLinux:8","Red Hat:enterprise_linux:8::appstream","Rocky Linux:8"],"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":"Memory corruption in n/a","id":"CVE-2019-12527","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"canonical:ubuntu_linux","products":["canonical:ubuntu_linux","debian:debian_linux","fedoraproject:fedora","redhat:enterprise_linux","redhat:enterprise_linux_eus","redhat:enterprise_linux_server_aus","redhat:enterprise_linux_server_tus","squid-cache:squid"],"type":"memory_corruption","year":"2019"},"n_packages":10,"n_references":11,"next":{"headline":"Information disclosure in n/a","id":"CVE-2019-12528"},"packages":[{"ecosystem":"AlmaLinux:8","fixed":["1.0.1-2.module_el8.6.0+2741+01592ae8"],"introduced":["0"],"last_affected":[],"package":"libecap","purl":"pkg:rpm/almalinux/libecap","source":"ALSA-2019:2593"},{"ecosystem":"AlmaLinux:8","fixed":["1.0.1-2.module_el8.6.0+2741+01592ae8"],"introduced":["0"],"last_affected":[],"package":"libecap-devel","purl":"pkg:rpm/almalinux/libecap-devel","source":"ALSA-2019:2593"},{"ecosystem":"Red Hat:enterprise_linux:8::appstream","fixed":["0:1.0.1-2.module+el8.0.0+4045+70edde92"],"introduced":["0"],"last_affected":[],"package":"libecap","purl":"pkg:rpm/redhat/libecap","source":"RHSA-2019:2593"},{"ecosystem":"Red Hat:enterprise_linux:8::appstream","fixed":["0:1.0.1-2.module+el8.0.0+4045+70edde92"],"introduced":["0"],"last_affected":[],"package":"libecap-debuginfo","purl":"pkg:rpm/redhat/libecap-debuginfo","source":"RHSA-2019:2593"},{"ecosystem":"Red Hat:enterprise_linux:8::appstream","fixed":["0:1.0.1-2.module+el8.0.0+4045+70edde92"],"introduced":["0"],"last_affected":[],"package":"libecap-debugsource","purl":"pkg:rpm/redhat/libecap-debugsource","source":"RHSA-2019:2593"},{"ecosystem":"Red Hat:enterprise_linux:8::appstream","fixed":["0:1.0.1-2.module+el8.0.0+4045+70edde92"],"introduced":["0"],"last_affected":[],"package":"libecap-devel","purl":"pkg:rpm/redhat/libecap-devel","source":"RHSA-2019:2593"},{"ecosystem":"Red Hat:enterprise_linux:8::appstream","fixed":["7:4.4-5.module+el8.0.0+4045+70edde92"],"introduced":["0"],"last_affected":[],"package":"squid","purl":"pkg:rpm/redhat/squid","source":"RHSA-2019:2593"},{"ecosystem":"Red Hat:enterprise_linux:8::appstream","fixed":["7:4.4-5.module+el8.0.0+4045+70edde92"],"introduced":["0"],"last_affected":[],"package":"squid-debuginfo","purl":"pkg:rpm/redhat/squid-debuginfo","source":"RHSA-2019:2593"},{"ecosystem":"Red Hat:enterprise_linux:8::appstream","fixed":["7:4.4-5.module+el8.0.0+4045+70edde92"],"introduced":["0"],"last_affected":[],"package":"squid-debugsource","purl":"pkg:rpm/redhat/squid-debugsource","source":"RHSA-2019:2593"},{"ecosystem":"Rocky Linux:8","fixed":["0:1.0.1-2.module+el8.4.0+404+316a0dc5"],"introduced":["0"],"last_affected":[],"package":"libecap","purl":"pkg:rpm/rocky-linux/libecap?distro=rocky-linux-8\u0026epoch=0","source":"RLSA-2019:2593"}],"prev":{"headline":"Memory corruption in n/a","id":"CVE-2019-12526"},"products":["n/a"],"published":"2019-07-11","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":"MIT","name":"AlmaLinux","prefix":"ALSA"},{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CC BY 4.0","name":"Red Hat","prefix":"RHSA"},{"class":"attribution","licence":"BSD","name":"Rocky Linux","prefix":"RLSA"},{"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":"2024-08-04","vendors":["n/a"]},"summary":"Heap-based buffer overflow in Squid proxy allows attackers to execute arbitrary code or cause denial of service via crafted Basic Authentication headers.","url":"https://insights.sbomify.com/CVE-2019-12527/"}