{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2024-56738 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2024-56738 is a medium-severity vulnerability in GNU GRUB2, published on 29 Dec 2024. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2024-56738 and fix it if it is affected.\n\nWhat it is: CVE-2024-56738 is a medium-severity vulnerability in GNU GRUB2, published on 29 Dec 2024. 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-2024-56738 in the wild and no public exploit code.\n\nAffected product: GNU GRUB2. 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-2024-56738/ (Markdown: https://insights.sbomify.com/CVE-2024-56738/index.md)","id":"CVE-2024-56738","markdown":"https://insights.sbomify.com/CVE-2024-56738/index.md","name":"CVE-2024-56738","record":{"aliases":["AZL-54692","AZL-54709","BELL-CVE-2024-56738","CLSA-2026-1788432569","DEBIAN-CVE-2024-56738","GHSA-9gmj-v2m8-qffv","OESA-2025-1675","SUSE-SU-2025:02705-1","SUSE-SU-2025:02706-1","SUSE-SU-2025:02724-1","SUSE-SU-2025:02725-1","SUSE-SU-2025:02727-1","SUSE-SU-2025:02772-1","SUSE-SU-2025:02813-1","SUSE-SU-2025:20654-1","UBUNTU-CVE-2024-56738","openSUSE-SU-2025:15400-1"],"analysis":{"component_type":"operating_system","fix_type":"patch","impacts":["data_read"],"network_reachable":"yes","non_default_config":false,"product_category":"GNU GRUB bootloader","requires_auth":"none","summary":"Attackers can exploit timing side-channels in GRUB's cryptographic comparison to potentially recover sensitive data.","user_interaction":"not_required","vuln_class":"information_disclosure"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"mitre","cpe":[{"product":"grub2","vendor":"gnu"}],"cvss":{"score":5.3,"severity":"medium","source":"cisa-adp","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N","version":"3.1"},"cwes":[{"id":"CWE-203","name":"Observable Discrepancy"},{"id":"CWE-208","name":"Observable Timing Discrepancy"}],"description":"GNU GRUB (aka GRUB2) through 2.12 does not use a constant-time algorithm for grub_crypto_memcmp and thus allows side-channel attacks.","ecosystems":["SUSE:Linux Enterprise Micro 5.1","SUSE:Linux Enterprise Micro 5.2","SUSE:Linux Enterprise Micro 5.3","SUSE:Linux Enterprise Micro 5.4","SUSE:Linux Enterprise Micro 5.5","SUSE:Linux Enterprise Module for Basesystem 15 SP6","SUSE:Linux Enterprise Module for Basesystem 15 SP7","SUSE:Linux Enterprise Module for Server Applications 15 SP6","SUSE:Linux Enterprise Module for Server Applications 15 SP7","SUSE:Linux Enterprise Server LTSS Extended Security 12 SP5","SUSE:Linux Micro 6.0","openSUSE:Leap 15.6","openSUSE:Tumbleweed"],"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":"Information disclosure in GRUB2","id":"CVE-2024-56738","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"information_disclosure","year":"2024"},"n_packages":13,"n_references":1,"next":{"headline":"rtc: check if __rtc_read_time was successful in rtc_timer_do_work()","id":"CVE-2024-56739"},"packages":[{"ecosystem":"SUSE:Linux Enterprise Micro 5.1","fixed":["2.04-150300.3.14.2"],"introduced":["0"],"last_affected":[],"package":"grub2","purl":"pkg:rpm/suse/grub2\u0026distro=SUSE%20Linux%20Enterprise%20Micro%205.1","source":"SUSE-SU-2025:02724-1"},{"ecosystem":"SUSE:Linux Enterprise Micro 5.2","fixed":["2.04-150300.22.58.1"],"introduced":["0"],"last_affected":[],"package":"grub2","purl":"pkg:rpm/suse/grub2\u0026distro=SUSE%20Linux%20Enterprise%20Micro%205.2","source":"SUSE-SU-2025:02705-1"},{"ecosystem":"SUSE:Linux Enterprise Micro 5.3","fixed":["2.06-150400.11.63.1"],"introduced":["0"],"last_affected":[],"package":"grub2","purl":"pkg:rpm/suse/grub2\u0026distro=SUSE%20Linux%20Enterprise%20Micro%205.3","source":"SUSE-SU-2025:02727-1"},{"ecosystem":"SUSE:Linux Enterprise Micro 5.4","fixed":["2.06-150400.11.63.1"],"introduced":["0"],"last_affected":[],"package":"grub2","purl":"pkg:rpm/suse/grub2\u0026distro=SUSE%20Linux%20Enterprise%20Micro%205.4","source":"SUSE-SU-2025:02727-1"},{"ecosystem":"SUSE:Linux Enterprise Micro 5.5","fixed":["2.06-150500.29.53.1"],"introduced":["0"],"last_affected":[],"package":"grub2","purl":"pkg:rpm/suse/grub2\u0026distro=SUSE%20Linux%20Enterprise%20Micro%205.5","source":"SUSE-SU-2025:02706-1"},{"ecosystem":"SUSE:Linux Enterprise Module for Basesystem 15 SP6","fixed":["2.12-150600.8.34.1"],"introduced":["0"],"last_affected":[],"package":"grub2","purl":"pkg:rpm/suse/grub2\u0026distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP6","source":"SUSE-SU-2025:02772-1"},{"ecosystem":"SUSE:Linux Enterprise Module for Basesystem 15 SP7","fixed":["2.12-150700.19.13.2"],"introduced":["0"],"last_affected":[],"package":"grub2","purl":"pkg:rpm/suse/grub2\u0026distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP7","source":"SUSE-SU-2025:02813-1"},{"ecosystem":"SUSE:Linux Enterprise Module for Server Applications 15 SP6","fixed":["2.12-150600.8.34.1"],"introduced":["0"],"last_affected":[],"package":"grub2","purl":"pkg:rpm/suse/grub2\u0026distro=SUSE%20Linux%20Enterprise%20Module%20for%20Server%20Applications%2015%20SP6","source":"SUSE-SU-2025:02772-1"},{"ecosystem":"SUSE:Linux Enterprise Module for Server Applications 15 SP7","fixed":["2.12-150700.19.13.2"],"introduced":["0"],"last_affected":[],"package":"grub2","purl":"pkg:rpm/suse/grub2\u0026distro=SUSE%20Linux%20Enterprise%20Module%20for%20Server%20Applications%2015%20SP7","source":"SUSE-SU-2025:02813-1"},{"ecosystem":"SUSE:Linux Enterprise Server LTSS Extended Security 12 SP5","fixed":["2.02-190.1"],"introduced":["0"],"last_affected":[],"package":"grub2","purl":"pkg:rpm/suse/grub2\u0026distro=SUSE%20Linux%20Enterprise%20Server%20LTSS%20Extended%20Security%2012%20SP5","source":"SUSE-SU-2025:02725-1"},{"ecosystem":"SUSE:Linux Micro 6.0","fixed":["2.12~rc1-7.1"],"introduced":["0"],"last_affected":[],"package":"grub2","purl":"pkg:rpm/suse/grub2\u0026distro=SUSE%20Linux%20Micro%206.0","source":"SUSE-SU-2025:20654-1"},{"ecosystem":"openSUSE:Leap 15.6","fixed":["2.12-150600.8.34.1"],"introduced":["0"],"last_affected":[],"package":"grub2","purl":"pkg:rpm/opensuse/grub2\u0026distro=openSUSE%20Leap%2015.6","source":"SUSE-SU-2025:02772-1"},{"ecosystem":"openSUSE:Tumbleweed","fixed":["2.12-56.1"],"introduced":["0"],"last_affected":[],"package":"grub2","purl":"pkg:rpm/opensuse/grub2\u0026distro=openSUSE%20Tumbleweed","source":"openSUSE-SU-2025:15400-1"}],"prev":{"headline":"Memory corruption in GRUB2","id":"CVE-2024-56737"},"products":["GRUB2"],"published":"2024-12-29","related":[{"cvss_score":8.8,"headline":"Memory corruption in GRUB2","id":"CVE-2024-56737","kev_date_added":null,"published":"2024-12-29"},{"cvss_score":8.1,"headline":"Integer underflow in grub_net_recv_ip4_packets","id":"CVE-2022-28733","kev_date_added":null,"published":"2023-07-20"},{"cvss_score":8.1,"headline":"Out-of-bounds write when handling split HTTP headers","id":"CVE-2022-28734","kev_date_added":null,"published":"2023-07-20"},{"cvss_score":7.8,"headline":"Grub2: missing unregister call for gettext command may lead to use-after-free","id":"CVE-2025-61662","kev_date_added":null,"published":"2025-11-18"},{"cvss_score":7.8,"headline":"Grub2: fs/hfs: strcpy() using the volume name (fs/hfs.c:382)","id":"CVE-2024-45782","kev_date_added":null,"published":"2025-03-03"},{"cvss_score":7.8,"headline":"Grub2: squash4: integer overflow may lead to heap based out-of-bounds write when reading data","id":"CVE-2025-0678","kev_date_added":null,"published":"2025-03-03"},{"cvss_score":7.8,"headline":"Grub2: udf: heap based buffer overflow in grub_udf_read_block() may lead to arbitrary code execution","id":"CVE-2025-0689","kev_date_added":null,"published":"2025-03-03"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CC BY 4.0","name":"SUSE","prefix":"SUSE"},{"class":"attribution","licence":"CC BY 4.0","name":"SUSE","prefix":"openSUSE"},{"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":"no","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2024-12-31","vendors":["GNU"]},"summary":"Attackers can exploit timing side-channels in GRUB's cryptographic comparison to potentially recover sensitive data.","url":"https://insights.sbomify.com/CVE-2024-56738/"}