Headline
CVE-2022-25858: fix potential regexp DDOS · terser/terser@a4da734
The package terser before 4.8.1, from 5.0.0 and before 5.14.2 are vulnerable to Regular Expression Denial of Service (ReDoS) due to insecure usage of regular expressions.
@@ -30,10 +30,10 @@ regexp_2: { unsafe: true, } input: { console.log(JSON.stringify("COMPASS? Overpass.".match(new RegExp("([Sap]+)", “ig”)))); console.log(JSON.stringify("COMPASS? Overpass.".match(new RegExp("(pass)", “ig”)))); } expect: { console.log(JSON.stringify(“COMPASS? Overpass.".match(/([Sap]+)/gi))); console.log(JSON.stringify(“COMPASS? Overpass.".match(/(pass)/gi))); } expect_stdout: '[“PASS","pass”]' } @@ -44,10 +44,10 @@ unsafe_slashes: { unsafe: true } input: { console.log(new RegExp(“^https://”)) console.log(new RegExp(“^https//”)) } expect: { console.log(/^https:\/\//) console.log(/^https\/\//) } } unsafe_nul_byte: { @@ -75,3 +75,16 @@ inline_script: { } expect_exact: ‘/* <\\/script> */\n/[<\\/script>]/;’ }
regexp_no_ddos: { options = { unsafe: true, evaluate: true } input: { console.log(/(b+)b+/.test(“bbb”)) console.log(RegExp("(b+)b+”).test(“bbb”)) } expect: { console.log(/(b+)b+/.test(“bbb”)) console.log(RegExp("(b+)b+”).test(“bbb”)) } expect_stdout: ["true", “true”] }
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The package terser before 4.8.1, from 5.0.0 and before 5.14.2 are vulnerable to Regular Expression Denial of Service (ReDoS) due to insecure usage of regular expressions.