Source: ruby3.3 Version: 3.3.8-2 Severity: important Tags: security upstream X-Debbugs-Cc: [email protected], Debian Security Team <[email protected]>
Hi, The following vulnerability was published for ruby3.3. CVE-2026-27820[0]: | zlib is a Ruby interface for the zlib compression/decompression | library. Versions 3.0.0 and below, 3.1.0, 3.1.1, 3.2.0 and 3.2.1 | contain a buffer overflow vulnerability in the Zlib::GzipReader. The | zstream_buffer_ungets function prepends caller-provided bytes ahead | of previously produced output but fails to guarantee the backing | Ruby string has enough capacity before the memmove shifts the | existing data. This can lead to memory corruption when the buffer | length exceeds capacity. This issue has been fixed in versions | 3.0.1, 3.1.2 and 3.2.3. If you fix the vulnerability please also make sure to include the CVE (Common Vulnerabilities & Exposures) id in your changelog entry. For further information see: [0] https://security-tracker.debian.org/tracker/CVE-2026-27820 https://www.cve.org/CVERecord?id=CVE-2026-27820 [1] https://github.com/ruby/zlib/security/advisories/GHSA-g857-hhfv-j68w Please adjust the affected versions in the BTS as needed. Regards, Salvatore _______________________________________________ Pkg-ruby-extras-maintainers mailing list [email protected] https://alioth-lists.debian.net/cgi-bin/mailman/listinfo/pkg-ruby-extras-maintainers
