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[GO-2022-1039] Memory exhaustion when compiling regular expressions in regexp/syntax

Severity High
Affected Packages 2
Fixed Packages 2
CVEs 1
Info Packages Vulnerabilities

Programs which compile regular expressions from untrusted sources may be
vulnerable to memory exhaustion or denial of service.

The parsed regexp representation is linear in the size of the input, but in some
cases the constant factor can be as high as 40,000, making relatively small
regexps consume much larger amounts of memory.

After fix, each regexp being parsed is limited to a 256 MB memory footprint.
Regular expressions whose representation would use more space than that are
rejected. Normal use of regular expressions is unaffected.

Package Affected Version
pkg:golang/regexp/syntax >= 1.19.1, < 1.18.7
pkg:golang/regexp/syntax >= 1.19.1, < 1.19.2
Package Fixed Version
pkg:golang/regexp/syntax = 1.18.7
pkg:golang/regexp/syntax = 1.19.2
ID
GO-2022-1039
Severity
high
Severity from
CVE-2022-41715
URL
https://pkg.go.dev/vuln/GO-2022-1039
Published
2022-10-05T22:03:05
(23 months ago)
Modified
2024-07-17T19:54:18
(2 months ago)
Other Advisories
Type Package URL Namespace Name / Product Version Distribution / Platform Arch Patch / Fix
Fixed pkg:golang/regexp/syntax regexp syntax = 1.18.7
Affected pkg:golang/regexp/syntax regexp syntax >= 1.19.1 < 1.18.7
Fixed pkg:golang/regexp/syntax regexp syntax = 1.19.2
Affected pkg:golang/regexp/syntax regexp syntax >= 1.19.1 < 1.19.2
# CVE Description CVSS EPSS EPSS Trend (30 days) Affected Products Weaknesses Security Advisories Exploits PoC Pubblication Date Modification Date
# CVE Description CVSS EPSS EPSS Trend (30 days) Affected Products Weaknesses Security Advisories PoC Pubblication Date Modification Date