Bug 1204023 - (CVE-2022-41715) VUL-0: CVE-2022-41715: go1.18,go1.19: regexp/syntax: limit memory used by parsing regexps
(CVE-2022-41715)
VUL-0: CVE-2022-41715: go1.18,go1.19: regexp/syntax: limit memory used by par...
Status: RESOLVED FIXED
Classification: Novell Products
Product: SUSE Security Incidents
Classification: Novell Products
Component: Incidents
unspecified
Other Other
: P3 - Medium : Normal
: ---
Assigned To: Security Team bot
Security Team bot
https://smash.suse.de/issue/344233/
CVSSv3.1:SUSE:CVE-2022-41715:6.2:(AV:...
:
Depends on:
Blocks:
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Reported: 2022-10-04 21:14 UTC by Jeff Kowalczyk
Modified: 2022-12-05 14:20 UTC (History)
1 user (show)

See Also:
Found By: ---
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Business Priority:
Blocker: ---
Marketing QA Status: ---
IT Deployment: ---


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Description Jeff Kowalczyk 2022-10-04 21:14:35 UTC
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.

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

Thanks to Adam Korczynski (ADA Logics) and OSS-Fuzz for reporting this issue.

This is CVE-2022-41715 and Go issue https://go.dev/issue/55949.
Comment 1 OBSbugzilla Bot 2022-10-05 03:35:06 UTC
This is an autogenerated message for OBS integration:
This bug (1204023) was mentioned in
https://build.opensuse.org/request/show/1008077 Factory / go1.18
https://build.opensuse.org/request/show/1008078 Factory / go1.19
Comment 3 Swamp Workflow Management 2022-10-20 01:20:23 UTC
SUSE-SU-2022:3669-1: An update that solves three vulnerabilities and has one errata is now available.

Category: security (important)
Bug References: 1200441,1204023,1204024,1204025
CVE References: CVE-2022-2879,CVE-2022-2880,CVE-2022-41715
JIRA References: 
Sources used:
openSUSE Leap 15.4 (src):    go1.19-1.19.2-150000.1.12.1
openSUSE Leap 15.3 (src):    go1.19-1.19.2-150000.1.12.1
SUSE Linux Enterprise Module for Development Tools 15-SP4 (src):    go1.19-1.19.2-150000.1.12.1
SUSE Linux Enterprise Module for Development Tools 15-SP3 (src):    go1.19-1.19.2-150000.1.12.1

NOTE: This line indicates an update has been released for the listed product(s). At times this might be only a partial fix. If you have questions please reach out to maintenance coordination.
Comment 4 Swamp Workflow Management 2022-10-20 01:21:25 UTC
SUSE-SU-2022:3668-1: An update that solves three vulnerabilities and has one errata is now available.

Category: security (important)
Bug References: 1193742,1204023,1204024,1204025
CVE References: CVE-2022-2879,CVE-2022-2880,CVE-2022-41715
JIRA References: 
Sources used:
openSUSE Leap 15.4 (src):    go1.18-1.18.7-150000.1.34.1
openSUSE Leap 15.3 (src):    go1.18-1.18.7-150000.1.34.1
SUSE Linux Enterprise Module for Development Tools 15-SP4 (src):    go1.18-1.18.7-150000.1.34.1
SUSE Linux Enterprise Module for Development Tools 15-SP3 (src):    go1.18-1.18.7-150000.1.34.1

NOTE: This line indicates an update has been released for the listed product(s). At times this might be only a partial fix. If you have questions please reach out to maintenance coordination.
Comment 5 Marcus Meissner 2022-12-05 14:20:13 UTC
done