A use-after-free in onignewdeluxe() in regext.c in Oniguruma 6.9.2 allows attackers to potentially cause information disclosure, denial of service, or possibly code execution by providing a crafted regular expression. The attacker provides a pair of a regex pattern and a string, with a multi-byte encoding that gets handled by onignewdeluxe(). Oniguruma issues often affect Ruby, as well as common optional libraries for PHP and Rust.
{ "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro", "binaries": [ { "binary_name": "libonig-dev", "binary_version": "5.9.1-1ubuntu1.1+esm1" }, { "binary_name": "libonig-dev-dbgsym", "binary_version": "5.9.1-1ubuntu1.1+esm1" }, { "binary_name": "libonig2", "binary_version": "5.9.1-1ubuntu1.1+esm1" }, { "binary_name": "libonig2-dbg", "binary_version": "5.9.1-1ubuntu1.1+esm1" }, { "binary_name": "libonig2-dbgsym", "binary_version": "5.9.1-1ubuntu1.1+esm1" } ] }
{ "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro", "binaries": [ { "binary_name": "libonig-dev", "binary_version": "5.9.6-1ubuntu0.1+esm1" }, { "binary_name": "libonig-dev-dbgsym", "binary_version": "5.9.6-1ubuntu0.1+esm1" }, { "binary_name": "libonig2", "binary_version": "5.9.6-1ubuntu0.1+esm1" }, { "binary_name": "libonig2-dbg", "binary_version": "5.9.6-1ubuntu0.1+esm1" }, { "binary_name": "libonig2-dbgsym", "binary_version": "5.9.6-1ubuntu0.1+esm1" } ] }
{ "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro", "binaries": [ { "binary_name": "libonig-dev", "binary_version": "6.7.0-1ubuntu0.1~esm1" }, { "binary_name": "libonig4", "binary_version": "6.7.0-1ubuntu0.1~esm1" }, { "binary_name": "libonig4-dbgsym", "binary_version": "6.7.0-1ubuntu0.1~esm1" } ] }