Vulnerability-Lookup

OPENSUSE-SU-2021:2791-1

Vulnerability from csaf_opensuse - Published: 2021-08-20 08:14 - Updated: 2026-09-20 19:34

Summary

Security update for fetchmail

Severity

Moderate

Notes

Title of the patch: Security update for fetchmail

Description of the patch: This update for fetchmail fixes the following issues: - CVE-2021-36386: Fixed a missing variable initialization that can cause read from bad memory locations. (bsc#1188875) - Change PASSWORDLEN from 64 to 256 (bsc#1188034)

Patchnames: openSUSE-SLE-15.3-2021-2791

CVE-2021-36386

5.1 (Medium)


                
                  CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L

Affected products

Recommended 8 products

Product	Version	Remediation
Unresolved product id: openSUSE Leap 15.3:fetchmail-0:6.3.26-20.14.1.aarch64	—	Vendor Fix
Unresolved product id: openSUSE Leap 15.3:fetchmail-0:6.3.26-20.14.1.ppc64le	—	Vendor Fix
Unresolved product id: openSUSE Leap 15.3:fetchmail-0:6.3.26-20.14.1.s390x	—	Vendor Fix
Unresolved product id: openSUSE Leap 15.3:fetchmail-0:6.3.26-20.14.1.x86_64	—	Vendor Fix
Unresolved product id: openSUSE Leap 15.3:fetchmailconf-0:6.3.26-20.14.1.aarch64	—	Vendor Fix
Unresolved product id: openSUSE Leap 15.3:fetchmailconf-0:6.3.26-20.14.1.ppc64le	—	Vendor Fix
Unresolved product id: openSUSE Leap 15.3:fetchmailconf-0:6.3.26-20.14.1.s390x	—	Vendor Fix
Unresolved product id: openSUSE Leap 15.3:fetchmailconf-0:6.3.26-20.14.1.x86_64	—	Vendor Fix

Threats

Impact moderate

References

10 references

URL	Category
https://www.suse.com/support/security/rating/	external
https://ftp.suse.com/pub/projects/security/csaf/o…	self
https://lists.opensuse.org/archives/list/security…	self
https://lists.opensuse.org/archives/list/security…	self
https://bugzilla.suse.com/1188034	self
https://bugzilla.suse.com/1188875	self
https://www.suse.com/security/cve/CVE-2021-36386/	self
https://www.suse.com/security/cve/CVE-2021-36386	external
https://bugzilla.suse.com/1188875	external
https://bugzilla.suse.com/1224188	external

JSON

To clipboard

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}

CVE-2021-36386 (GCVE-0-2021-36386)

Vulnerability from cvelistv5 – Published: 2021-07-29 13:59 – Updated: 2024-08-04 00:54

Summary

report_vbuild in report.c in Fetchmail before 6.4.20 sometimes omits initialization of the vsnprintf va_list argument, which might allow mail servers to cause a denial of service or possibly have unspecified other impact via long error messages. NOTE: it is unclear whether use of Fetchmail on any realistic platform results in an impact beyond an inconvenience to the client user.

Severity

No CVSS data available.

CWE

Assigner

mitre mitre root

References

7 references

URL	Tags
https://www.fetchmail.info/security.html	x_refsource_MISC
http://www.openwall.com/lists/oss-security/2021/07/28/5	x_refsource_MISC
https://www.fetchmail.info/fetchmail-SA-2021-01.txt	x_refsource_CONFIRM
http://www.openwall.com/lists/oss-security/2021/08/09/1	mailing-listx_refsource_MLIST
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisoryx_refsource_FEDORA
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisoryx_refsource_FEDORA
https://security.gentoo.org/glsa/202209-14	vendor-advisoryx_refsource_GENTOO

Show details on NVD website

JSON

To clipboard

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Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

Action not permitted

OPENSUSE-SU-2021:2791-1

CVE-2021-36386 (GCVE-0-2021-36386)

Tags

Sightings

Nomenclature

Related by attack behaviour