{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2023-1255 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2023-1255 is a medium-severity memory corruption vulnerability in Openssl Openssl, published on 20 Apr 2023. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2023-1255 and fix it if it is affected.\n\nWhat it is: CVE-2023-1255 is a medium-severity memory corruption vulnerability in Openssl Openssl, published on 20 Apr 2023. 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-2023-1255 in the wild and no public exploit code.\n\nAffected product: Openssl Openssl. 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-2023-1255/ (Markdown: https://insights.sbomify.com/CVE-2023-1255/index.md)","id":"CVE-2023-1255","markdown":"https://insights.sbomify.com/CVE-2023-1255/index.md","name":"CVE-2023-1255","record":{"aliases":["ALPINE-CVE-2023-1255","CLEANSTART-2026-MN08707","DEBIAN-CVE-2023-1255","GHSA-4wp2-xw7p-2gfx","JLSEC-2026-238","UBUNTU-CVE-2023-1255"],"analysis":{"component_type":"library","fix_type":"patch","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"OpenSSL crypto library","requires_auth":"none","summary":"An attacker controlling ciphertext size on 64-bit ARM can trigger a buffer over-read in OpenSSL's AES-XTS decryption, causing a denial of service.","user_interaction":"not_required","vuln_class":"memory_corruption"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"openssl","cpe":[{"product":"openssl","vendor":"openssl"}],"cvss":{"score":5.9,"severity":"medium","source":"cisa-adp","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"cwes":[{"id":"CWE-125","name":"Out-of-bounds Read"}],"description":"Issue summary: The AES-XTS cipher decryption implementation for 64 bit ARM\nplatform contains a bug that could cause it to read past the input buffer,\nleading to a crash.\n\nImpact summary: Applications that use the AES-XTS algorithm on the 64 bit ARM\nplatform can crash in rare circumstances. The AES-XTS algorithm is usually\nused for disk encryption.\n\nThe AES-XTS cipher decryption implementation for 64 bit ARM platform will read\npast the end of the ciphertext buffer if the ciphertext size is 4 mod 5 in 16\nbyte blocks, e.g. 144 bytes or 1024 bytes. If the memory after the ciphertext\nbuffer is unmapped, this will trigger a crash which results in a denial of\nservice.\n\nIf an attacker can control the size and location of the ciphertext buffer\nbeing decrypted by an application using AES-XTS on 64 bit ARM, the\napplication is affected. This is fairly unlikely making this issue\na Low severity one.","ecosystems":[],"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":"Input buffer over-read in AES-XTS implementation on 64 bit ARM","id":"CVE-2023-1255","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"openssl:openssl","products":["openssl:openssl"],"type":"memory_corruption","year":"2023"},"n_packages":0,"n_references":4,"next":{"headline":"CVE-2023-1256","id":"CVE-2023-1256"},"packages":[],"prev":{"headline":"SourceCodester Health Center Patient Record Management System birthing_print.php cross site scripting","id":"CVE-2023-1254"},"products":["OpenSSL"],"published":"2023-04-20","related":[{"cvss_score":10,"headline":"Null dereference in n/a","id":"CVE-2009-3245","kev_date_added":null,"published":"2010-03-05"},{"cvss_score":10,"headline":"Memory corruption in n/a","id":"CVE-2006-3738","kev_date_added":null,"published":"2006-09-28"},{"cvss_score":9.8,"headline":"Untrusted Sender DN Used as Format String in CMP Response Validation","id":"CVE-2026-63073","kev_date_added":null,"published":"2026-08-25"},{"cvss_score":9.8,"headline":"Use after free in n/a","id":"CVE-2016-6309","kev_date_added":null,"published":"2016-09-26"},{"cvss_score":9.8,"headline":"Integer overflow in n/a","id":"CVE-2016-0799","kev_date_added":null,"published":"2016-03-03"},{"cvss_score":9.8,"headline":"Memory corruption in n/a","id":"CVE-2016-2842","kev_date_added":null,"published":"2016-03-03"},{"cvss_score":9.8,"headline":"Memory corruption in n/a","id":"CVE-2003-0545","kev_date_added":null,"published":"2003-10-01"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"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":"2025-02-13","vendors":["OpenSSL"]},"summary":"An attacker controlling ciphertext size on 64-bit ARM can trigger a buffer over-read in OpenSSL's AES-XTS decryption, causing a denial of service.","url":"https://insights.sbomify.com/CVE-2023-1255/"}