{"answers":{"affected":"","exploited":"There is no known exploitation of ALBA-2021:0556 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"ALBA-2021:0556 is a denial of service vulnerability in glibc-benchtests, published on 16 Feb 2021. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for ALBA-2021:0556 and fix it if it is affected.\n\nWhat it is: ALBA-2021:0556 is a denial of service vulnerability in glibc-benchtests, published on 16 Feb 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: There is no known exploitation of ALBA-2021:0556 in the wild and no public exploit code.\n\nAffected product: glibc-benchtests. 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/ALBA-2021-0556/ (Markdown: https://insights.sbomify.com/ALBA-2021-0556/index.md)","id":"ALBA-2021:0556","markdown":"https://insights.sbomify.com/ALBA-2021-0556/index.md","name":"ALBA-2021:0556","record":{"aliases":[],"analysis":{"component_type":"operating_system","fix_type":"patch","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"AlmaLinux glibc","requires_auth":"none","summary":"An attacker can cause slow DNS lookups and potential service degradation via transaction ID collisions in glibc's getaddrinfo function.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":null,"cpe":[],"cvss":{"score":null,"severity":null,"source":null,"vector":null,"version":null},"cwes":[],"description":"The glibc packages provide the standard C libraries (libc), POSIX thread\nlibraries (libpthread), standard math libraries (libm), and the name\nservice cache daemon (nscd) used by multiple programs on the system.\nWithout these libraries, the Linux system cannot function correctly.\n\nBug Fix(es) and Enhancement(s):\n\n* glibc: Transaction ID collisions cause slow DNS lookups in getaddrinfo\n(BZ#1904153)\n\n* glibc: memcpy calls are slower for AMD processors on AlmaLinux 8 than AlmaLinux 7\n(BZ#1913750)","ecosystems":["AlmaLinux:8"],"exploits":{"exploitdb":null,"first_seen":null,"github_poc":null,"max_poc_stars":null,"metasploit":null,"nuclei":null,"refs":[],"tier":null},"has_fix":true,"headline":"glibc bug fix and enhancement update","id":"ALBA-2021:0556","indexable":true,"kev":null,"kind":"advisory","links":{"ecosystem":null,"product":null,"products":[],"type":"denial_of_service","year":"2021"},"n_packages":4,"n_references":null,"packages":[{"ecosystem":"AlmaLinux:8","fixed":["2.28-127.el8_3.2"],"introduced":["0"],"last_affected":[],"package":"glibc-benchtests","purl":"pkg:rpm/almalinux/glibc-benchtests","source":"ALBA-2021:0556"},{"ecosystem":"AlmaLinux:8","fixed":["2.28-127.el8_3.2"],"introduced":["0"],"last_affected":[],"package":"glibc-nss-devel","purl":"pkg:rpm/almalinux/glibc-nss-devel","source":"ALBA-2021:0556"},{"ecosystem":"AlmaLinux:8","fixed":["2.28-127.el8_3.2"],"introduced":["0"],"last_affected":[],"package":"glibc-static","purl":"pkg:rpm/almalinux/glibc-static","source":"ALBA-2021:0556"},{"ecosystem":"AlmaLinux:8","fixed":["2.28-127.el8_3.2"],"introduced":["0"],"last_affected":[],"package":"nss_hesiod","purl":"pkg:rpm/almalinux/nss_hesiod","source":"ALBA-2021:0556"}],"products":null,"published":"2021-02-16","related":[],"sources":[{"class":"attribution","licence":"MIT","name":"AlmaLinux","prefix":"ALBA"}],"ssvc":{"automatable":null,"exploitation":null,"technical_impact":null},"state":null,"updated":null,"vendors":null},"summary":"An attacker can cause slow DNS lookups and potential service degradation via transaction ID collisions in glibc's getaddrinfo function.","url":"https://insights.sbomify.com/ALBA-2021-0556/"}