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2.5 KiB
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2.5 KiB
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{"schema_version":"1.9.0","id":"GHSA-794x-2rpg-rfgr","published":"2025-04-07T16:40:25Z","modified":"2025-04-07T16:40:25Z","summary":"Jujutsu does not have SHA-1 collision detection","details":"### Summary\nJujutsu 0.28.0 and earlier rely on versions of gitoxide that use SHA-1 hash implementations without any collision detection, leaving them vulnerable to hash collision attacks.\n\n### Details\nThis is a result of the underlying [CVE-2025-31130 / GHSA-2frx-2596-x5r6](https://github.com/GitoxideLabs/gitoxide/security/advisories/GHSA-2frx-2596-x5r6) vulnerability in the gitoxide library Jujutsu uses to interact with Git repositories; see that advisory for technical details. This separate advisory is being issued due to the downstream impact on users of Jujutsu.\n\n### Impact\nAn attacker with the ability to mount a collision attack on SHA-1 like the [SHAttered](https://shattered.io/) or [SHA-1 is a Shambles](https://sha-mbles.github.io/) attacks could create two distinct Git objects with the same hash. This is becoming increasingly affordable for well‐resourced attackers, with the Shambles researchers in 2020 estimating $45k for a chosen‐prefix collision or $11k for a classical collision, and projecting less than $10k for a chosen‐prefix collision by 2025. The result could be used to disguise malicious repository contents, or potentially exploit assumptions in Jujutsu’s logic to cause further vulnerabilities.","affected":[{"package":{"name":"jj-lib","ecosystem":"crates.io","purl":"pkg:cargo/jj-lib"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"0.28.1"}]}],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2025/04/GHSA-794x-2rpg-rfgr/GHSA-794x-2rpg-rfgr.json"}},{"package":{"name":"jj-cli","ecosystem":"crates.io","purl":"pkg:cargo/jj-cli"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"0.28.1"}]}],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2025/04/GHSA-794x-2rpg-rfgr/GHSA-794x-2rpg-rfgr.json"}}],"references":[{"type":"WEB","url":"https://github.com/jj-vcs/jj/security/advisories/GHSA-794x-2rpg-rfgr"},{"type":"WEB","url":"https://github.com/jj-vcs/jj/commit/350da7d013773377aec0d3a4bf4374d3c941460e"},{"type":"PACKAGE","url":"https://github.com/jj-vcs/jj"}],"database_specific":{"cwe_ids":["CWE-328"],"github_reviewed":true,"github_reviewed_at":"2025-04-07T16:40:25Z","nvd_published_at":null,"severity":"MODERATE"},"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:H/A:N"}]} |