Bug 1213450 (CVE-2020-23910) - VUL-0: CVE-2020-23910: asn1c: stack-based buffer overflow vulnerability in asn1c through v0.9.28 via function genhash_get in genhash.c.
Summary: VUL-0: CVE-2020-23910: asn1c: stack-based buffer overflow vulnerability in as...
Status: RESOLVED FIXED
Alias: CVE-2020-23910
Product: SUSE Security Incidents
Classification: Novell Products
Component: Incidents (show other bugs)
Version: unspecified
Hardware: Other Other
: P3 - Medium : Normal
Target Milestone: ---
Assignee: Security Team bot
QA Contact: Security Team bot
URL: https://smash.suse.de/issue/372804/
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Reported: 2023-07-19 07:18 UTC by Thomas Leroy
Modified: 2024-04-18 09:24 UTC (History)
2 users (show)

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Found By: Security Response Team
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Marketing QA Status: ---
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Description Thomas Leroy 2023-07-19 07:18:41 UTC 
CVE-2020-23910

Stack-based buffer overflow vulnerability in asn1c through v0.9.28 via function
genhash_get in genhash.c.

References:
http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2020-23910
https://www.cve.org/CVERecord?id=CVE-2020-23910
https://github.com/vlm/asn1c/issues/396
Comment 1 Thomas Leroy 2023-07-19 07:25:20 UTC 
No fix upstream yet.

Affected:
- SUSE:SLE-15:Update
- openSUSE:Factory
Comment 2 Michal Suchanek 2023-07-19 07:35:27 UTC 
SLE is unaffected, we don't ship asn1c, only code generated by asn1c AFAIK.

Also generally problems from compiling untrusted code cannot be considered very serious vulnerability.
Comment 3 Michal Suchanek 2023-07-19 07:40:02 UTC 
python3-asn1crypto Basesystem Module (sle-module-basesystem/15.4/x86_64)                              SUSEConnect --product sle-module-basesystem/15.4/x86_64 
libasn1c-devel     SUSE Package Hub (PackageHub/15.4/x86_64)                                          SUSEConnect --product PackageHub/15.4/x86_64            
libasn1c1          SUSE Package Hub (PackageHub/15.4/x86_64)                                          SUSEConnect --product PackageHub/15.4/x86_64            
asn1c              SUSE Package Hub (PackageHub/15.4/x86_64)                                          SUSEConnect --product PackageHub/15.4/x86_64            
python3-asn1crypto Installed                                                                                                                                  
python3-asn1crypto Available in repo Basesystem_Module_15_SP4_x86_64:SLE-Module-Basesystem15-SP4-Pool
Comment 4 Michal Suchanek 2023-07-19 07:43:39 UTC 
It was reported almost 3 years ago and nothing was done about it upstream.

I don't see anything happening on our side as realistic other than acknowledging that the problem exists.

It does not have severity assigned either after 3 years so if anything it's a candidate for dispute.
Comment 5 Thomas Leroy 2023-07-19 08:21:31 UTC 
(In reply to Michal Suchanek from comment #2)
> SLE is unaffected, we don't ship asn1c, only code generated by asn1c AFAIK.

Indeed, thanks for pointing. Let's just close it
Comment 6 Marcus Meissner 2024-04-18 09:24:40 UTC 
done