Medium severity5.3NVD Advisory· Published Mar 31, 2023· Updated Jun 17, 2026
CVE-2023-28756
CVE-2023-28756
Description
A ReDoS issue was discovered in the Time component through 0.2.1 in Ruby through 3.2.1. The Time parser mishandles invalid URLs that have specific characters. It causes an increase in execution time for parsing strings to Time objects. The fixed versions are 0.1.1 and 0.2.2.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
timeRubyGems | >= 0.2.0, < 0.2.2 | 0.2.2 |
timeRubyGems | < 0.1.1 | 0.1.1 |
Affected products
93- osv-coords85 versionspkg:rpm/almalinux/rubypkg:rpm/almalinux/ruby-default-gemspkg:rpm/almalinux/ruby-develpkg:rpm/almalinux/ruby-docpkg:rpm/almalinux/ruby-libspkg:rpm/almalinux/rubygem-abrtpkg:rpm/almalinux/rubygem-abrt-docpkg:rpm/almalinux/rubygem-bigdecimalpkg:rpm/almalinux/rubygem-bsonpkg:rpm/almalinux/rubygem-bson-docpkg:rpm/almalinux/rubygem-bundlerpkg:rpm/almalinux/rubygem-io-consolepkg:rpm/almalinux/rubygem-irbpkg:rpm/almalinux/rubygem-jsonpkg:rpm/almalinux/rubygem-minitestpkg:rpm/almalinux/rubygem-mongopkg:rpm/almalinux/rubygem-mongo-docpkg:rpm/almalinux/rubygem-mysql2-docpkg:rpm/almalinux/rubygem-net-telnetpkg:rpm/almalinux/rubygem-opensslpkg:rpm/almalinux/rubygem-pgpkg:rpm/almalinux/rubygem-pg-docpkg:rpm/almalinux/rubygem-psychpkg:rpm/almalinux/rubygem-test-unitpkg:rpm/almalinux/rubygem-xmlrpcpkg:rpm/almalinux/rubygemspkg:gem/timepkg:apk/chainguard/ruby-3.0pkg:apk/chainguard/ruby-3.0-devpkg:apk/chainguard/ruby-3.1-base-devpkg:apk/chainguard/ruby-3.2-base-devpkg:apk/wolfi/ruby-3.0pkg:apk/wolfi/ruby-3.0-devpkg:apk/wolfi/ruby-3.0-docpkg:apk/wolfi/ruby-3.1pkg:apk/wolfi/ruby-3.1-basepkg:apk/wolfi/ruby-3.1-base-devpkg:apk/wolfi/ruby-3.1-devpkg:apk/wolfi/ruby-3.1-docpkg:apk/chainguard/ruby-3.1pkg:apk/chainguard/ruby-3.1-basepkg:apk/chainguard/ruby-3.1-docpkg:apk/wolfi/ruby-3.2-base-devpkg:apk/chainguard/ruby-3.2pkg:apk/wolfi/ruby-3.2pkg:apk/chainguard/ruby-3.2-devpkg:apk/chainguard/ruby-3.2-docpkg:apk/wolfi/ruby-3.2-docpkg:apk/chainguard/ruby-3.1-devpkg:bitnami/rubypkg:bitnami/ruby-minpkg:rpm/almalinux/rubygem-rbspkg:rpm/almalinux/rubygem-rexmlpkg:rpm/suse/ruby2.5&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP5pkg:rpm/suse/ruby2.5&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP3-LTSSpkg:rpm/suse/ruby2.5&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP1pkg:rpm/suse/ruby2.5&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP2pkg:rpm/suse/ruby2.5&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP3pkg:rpm/almalinux/rubygem-mysql2pkg:rpm/almalinux/rubygem-power_assertpkg:rpm/almalinux/rubygem-rakepkg:rpm/almalinux/rubygem-rdocpkg:rpm/almalinux/rubygems-develpkg:apk/chainguard/ruby-3.0-docpkg:apk/chainguard/ruby-3.2-basepkg:apk/wolfi/ruby-3.2-basepkg:rpm/almalinux/ruby-irbpkg:rpm/almalinux/rubygem-bundler-docpkg:rpm/almalinux/rubygem-did_you_meanpkg:rpm/almalinux/ruby-bundled-gemspkg:rpm/almalinux/rubygem-rsspkg:rpm/almalinux/rubygem-typeprofpkg:apk/wolfi/ruby-3.2-devpkg:rpm/suse/ruby2.5&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP4pkg:rpm/suse/ruby2.5&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP1-LTSSpkg:rpm/suse/ruby2.5&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP2-LTSSpkg:rpm/suse/ruby2.5&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP3-ESPOSpkg:rpm/suse/ruby2.5&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP1-LTSSpkg:rpm/suse/ruby2.5&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP2-LTSSpkg:rpm/suse/ruby2.5&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP3-LTSSpkg:rpm/suse/ruby2.5&distro=SUSE%20Manager%20Server%204.2pkg:rpm/opensuse/ruby2.5&distro=openSUSE%20Leap%2015.4pkg:rpm/opensuse/ruby2.5&distro=openSUSE%20Leap%2015.5pkg:rpm/suse/ruby2.5&distro=SUSE%20Manager%20Proxy%204.2pkg:rpm/suse/ruby2.5&distro=SUSE%20Enterprise%20Storage%207.1
< 2.7.8-139.module_el8.8.0+3578+2b4b06da+ 84 more
- (no CPE)range: < 2.7.8-139.module_el8.8.0+3578+2b4b06da
- (no CPE)range: < 2.7.8-139.module_el8.8.0+3578+2b4b06da
- (no CPE)range: < 2.7.8-139.module_el8.8.0+3578+2b4b06da
- (no CPE)range: < 2.7.8-139.module_el8.8.0+3578+2b4b06da
- (no CPE)range: < 2.7.8-139.module_el8.8.0+3578+2b4b06da
- (no CPE)range: < 0.4.0-1.module_el8.3.0+6147+d0dfc1e4
- (no CPE)range: < 0.4.0-1.module_el8.3.0+6147+d0dfc1e4
- (no CPE)range: < 2.0.0-139.module_el8.8.0+3578+2b4b06da
- (no CPE)range: < 4.8.1-1.module_el8.5.0+117+35d1289b
- (no CPE)range: < 4.8.1-1.module_el8.3.0+6147+d0dfc1e4
- (no CPE)range: < 2.2.24-139.module_el8.8.0+3578+2b4b06da
- (no CPE)range: < 0.5.6-139.module_el8.8.0+3578+2b4b06da
- (no CPE)range: < 1.2.6-139.module_el8.8.0+3578+2b4b06da
- (no CPE)range: < 2.3.0-139.module_el8.8.0+3578+2b4b06da
- (no CPE)range: < 5.13.0-139.module_el8.8.0+3578+2b4b06da
- (no CPE)range: < 2.11.3-1.module_el8.3.0+6147+d0dfc1e4
- (no CPE)range: < 2.11.3-1.module_el8.3.0+6147+d0dfc1e4
- (no CPE)range: < 0.5.3-1.module_el8.3.0+6147+d0dfc1e4
- (no CPE)range: < 0.2.0-139.module_el8.8.0+3578+2b4b06da
- (no CPE)range: < 2.1.4-139.module_el8.8.0+3578+2b4b06da
- (no CPE)range: < 1.2.3-1.module_el8.3.0+6147+d0dfc1e4
- (no CPE)range: < 1.2.3-1.module_el8.3.0+6147+d0dfc1e4
- (no CPE)range: < 3.1.0-139.module_el8.8.0+3578+2b4b06da
- (no CPE)range: < 3.3.4-139.module_el8.8.0+3578+2b4b06da
- (no CPE)range: < 0.3.0-139.module_el8.8.0+3578+2b4b06da
- (no CPE)range: < 3.1.6-139.module_el8.8.0+3578+2b4b06da
- (no CPE)range: >= 0.2.0, < 0.2.2
- (no CPE)range: < 3.0.6-r0
- (no CPE)range: < 3.0.6-r0
- (no CPE)range: < 3.1.4-r0
- (no CPE)range: < 3.2.2-r0
- (no CPE)range: < 3.0.6-r0
- (no CPE)range: < 3.0.6-r0
- (no CPE)range: < 3.0.6-r0
- (no CPE)range: < 3.1.4-r0
- (no CPE)range: < 3.1.4-r0
- (no CPE)range: < 3.1.4-r0
- (no CPE)range: < 3.1.4-r0
- (no CPE)range: < 3.1.4-r0
- (no CPE)range: < 3.1.4-r0
- (no CPE)range: < 3.1.4-r0
- (no CPE)range: < 3.1.4-r0
- (no CPE)range: < 3.2.2-r0
- (no CPE)range: < 3.2.2-r0
- (no CPE)range: < 3.2.2-r0
- (no CPE)range: < 3.2.2-r0
- (no CPE)range: < 3.2.2-r0
- (no CPE)range: < 3.2.2-r0
- (no CPE)range: < 3.1.4-r0
- (no CPE)range: < 2.7.8
- (no CPE)range: < 2.7.8
- (no CPE)range: < 2.7.0-142.module_el8.9.0+3746+91b8233a
- (no CPE)range: < 3.2.5-142.module_el8.9.0+3746+91b8233a
- (no CPE)range: < 2.5.9-150000.4.29.1
- (no CPE)range: < 2.5.9-150000.4.29.1
- (no CPE)range: < 2.5.9-150000.4.29.1
- (no CPE)range: < 2.5.9-150000.4.29.1
- (no CPE)range: < 2.5.9-150000.4.29.1
- (no CPE)range: < 0.5.3-1.module_el8.4.0+2399+4e3a532a
- (no CPE)range: < 1.1.7-139.module_el8.8.0+3578+2b4b06da
- (no CPE)range: < 13.0.1-139.module_el8.8.0+3578+2b4b06da
- (no CPE)range: < 6.2.1.1-139.module_el8.8.0+3578+2b4b06da
- (no CPE)range: < 3.1.6-139.module_el8.8.0+3578+2b4b06da
- (no CPE)range: < 3.0.6-r0
- (no CPE)range: < 3.2.2-r0
- (no CPE)range: < 3.2.2-r0
- (no CPE)range: < 2.5.9-111.module_el8.9.0+3635+c6f99506
- (no CPE)range: < 1.16.1-4.module_el8.5.0+2625+ec418553
- (no CPE)range: < 1.2.0-111.module_el8.9.0+3635+c6f99506
- (no CPE)range: < 3.1.4-142.module_el8.9.0+3746+91b8233a
- (no CPE)range: < 0.2.9-142.module_el8.9.0+3746+91b8233a
- (no CPE)range: < 0.21.3-142.module_el8.9.0+3746+91b8233a
- (no CPE)range: < 3.2.2-r0
- (no CPE)range: < 2.5.9-150000.4.29.1
- (no CPE)range: < 2.5.9-150000.4.29.1
- (no CPE)range: < 2.5.9-150000.4.29.1
- (no CPE)range: < 2.5.9-150000.4.29.1
- (no CPE)range: < 2.5.9-150000.4.29.1
- (no CPE)range: < 2.5.9-150000.4.29.1
- (no CPE)range: < 2.5.9-150000.4.29.1
- (no CPE)range: < 2.5.9-150000.4.29.1
- (no CPE)range: < 2.5.9-150000.4.29.1
- (no CPE)range: < 2.5.9-150000.4.29.1
- (no CPE)range: < 2.5.9-150000.4.29.1
- (no CPE)range: < 2.5.9-150000.4.29.1
cpe:2.3:o:fedoraproject:fedora:36:*:*:*:*:*:*:*+ 2 more
- cpe:2.3:o:fedoraproject:fedora:36:*:*:*:*:*:*:*
- cpe:2.3:o:fedoraproject:fedora:37:*:*:*:*:*:*:*
- cpe:2.3:o:fedoraproject:fedora:38:*:*:*:*:*:*:*
Patches
Vulnerability mechanics
References
25- github.com/advisories/GHSA-fg7x-g82r-94qcghsaADVISORY
- lists.debian.org/debian-lts-announce/2023/04/msg00033.htmlnvdMailing ListThird Party AdvisoryWEB
- nvd.nist.gov/vuln/detail/CVE-2023-28756ghsaADVISORY
- security.netapp.com/advisory/ntap-20230526-0004/nvdThird Party Advisory
- www.ruby-lang.org/en/news/2023/03/30/redos-in-time-cve-2023-28756/nvdVendor Advisory
- github.com/ruby/time/releasesghsaWEB
- github.com/ruby/time/releases/nvdRelease Notes
- github.com/rubysec/ruby-advisory-db/blob/master/gems/time/CVE-2023-28756.ymlghsaWEB
- lists.debian.org/debian-lts-announce/2024/09/msg00000.htmlnvdWEB
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FFZANOQA4RYX7XCB42OO3P24DQKWHEKAghsaWEB
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/G76GZG3RAGYF4P75YY7J7TGYAU7Z5E2TghsaWEB
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WMIOPLBAAM3FEQNAXA2L7BDKOGSVUT5ZghsaWEB
- lists.fedoraproject.org/archives/list/[email protected]/message/FFZANOQA4RYX7XCB42OO3P24DQKWHEKAghsaWEB
- lists.fedoraproject.org/archives/list/[email protected]/message/G76GZG3RAGYF4P75YY7J7TGYAU7Z5E2TghsaWEB
- lists.fedoraproject.org/archives/list/[email protected]/message/WMIOPLBAAM3FEQNAXA2L7BDKOGSVUT5ZghsaWEB
- security.gentoo.org/glsa/202401-27nvdWEB
- security.netapp.com/advisory/ntap-20230526-0004ghsaWEB
- www.ruby-lang.org/en/downloads/releasesghsaWEB
- www.ruby-lang.org/en/downloads/releases/nvdRelease Notes
- www.ruby-lang.org/en/news/2022/12/25/ruby-3-2-0-releasedghsaWEB
- www.ruby-lang.org/en/news/2022/12/25/ruby-3-2-0-released/nvdRelease Notes
- www.ruby-lang.org/en/news/2023/03/30/redos-in-time-cve-2023-28756ghsaWEB
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FFZANOQA4RYX7XCB42OO3P24DQKWHEKA/nvd
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/G76GZG3RAGYF4P75YY7J7TGYAU7Z5E2T/nvd
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WMIOPLBAAM3FEQNAXA2L7BDKOGSVUT5Z/nvd
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