Vulnerability-Lookup

SUSE-SU-2022:1276-1

Vulnerability from csaf_suse - Published: 2022-04-20 07:17 - Updated: 2026-09-20 14:21

Summary

Security update for nbd

Severity

Important

Notes

Title of the patch: Security update for nbd

Description of the patch: This update for nbd fixes the following issues: - CVE-2022-26495: Fixed an integer overflow with a resultant heap-based buffer overflow (bsc#1196827). - CVE-2022-26496: Fixed a stack-based buffer overflow when parsing the name field by sending a crafted NBD_OPT_INFO (bsc#1196828). Update to version 3.24 (bsc#1196827, bsc#1196828, CVE-2022-26495, CVE-2022-26496): * https://github.com/advisories/GHSA-q9rw-8758-hccj Update to version 3.23: * Don't overwrite the hostname with the TLS hostname Update to version 3.22: - nbd-server: handle auth for v6-mapped IPv4 addresses - nbd-client.c: parse the next option in all cases - configure.ac: silence a few autoconf 2.71 warnings - spec: Relax NBD_OPT_LIST_META_CONTEXTS - client: Don't confuse Unix socket with TLS hostname - server: Avoid deprecated g_memdup Update to version 3.21: - Fix --disable-manpages build - Fix a bug in whitespace handling regarding authorization files - Support client-side marking of devices as read-only - Support preinitialized NBD connection (i.e., skip the negotiation). - Fix the systemd unit file for nbd-client so it works with netlink (the more common situation nowadays) Update to 3.20.0 (no changelog) Update to version 3.19.0: * Better error messages in case of unexpected disconnects * Better compatibility with non-bash sh implementations (for configure.sh) * Fix for a segfault in NBD_OPT_INFO handling * The ability to specify whether to listen on both TCP and Unix domain sockets, rather than to always do so * Various minor editorial and spelling fixes in the documentation. Update to version 1.18.0: * Client: Add the '-g' option to avoid even trying the NBD_OPT_GO message * Server: fixes to inetd mode * Don't make gnutls and libnl automagic. * Server: bugfixes in handling of some export names during verification. * Server: clean supplementary groups when changing user. * Client: when using the netlink protocol, only set a timeout when there actually is a timeout, rather than defaulting to 0 seconds * Improve documentation on the nbdtab file * Minor improvements to some error messages * Improvements to test suite so it works better on non-GNU userland environments - Update to version 1.17.0: * proto: add xNBD command NBD_CMD_CACHE to the spec * server: do not crash when handling child name * server: Close socket pair when fork fails

Patchnames: SUSE-2022-1276,openSUSE-SLE-15.3-2022-1276,openSUSE-SLE-15.4-2022-1276

CVE-2022-26495

8.1 (High)


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

Affected products

Recommended 4 products

Product	Version	Remediation
Unresolved product id: openSUSE Leap 15.3:nbd-0:3.24-150000.3.3.1.aarch64	—	Vendor Fix
Unresolved product id: openSUSE Leap 15.3:nbd-0:3.24-150000.3.3.1.ppc64le	—	Vendor Fix
Unresolved product id: openSUSE Leap 15.3:nbd-0:3.24-150000.3.3.1.s390x	—	Vendor Fix
Unresolved product id: openSUSE Leap 15.3:nbd-0:3.24-150000.3.3.1.x86_64	—	Vendor Fix

Threats

Impact important

CVE-2022-26496

8.1 (High)


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

Affected products

Recommended 4 products, the same list as for CVE-2022-26495

Threats

Impact important

References

12 references

URL	Category
https://www.suse.com/support/security/rating/	external
https://ftp.suse.com/pub/projects/security/csaf/s…	self
https://www.suse.com/support/update/announcement/…	self
https://lists.suse.com/pipermail/sle-security-upd…	self
https://bugzilla.suse.com/1196827	self
https://bugzilla.suse.com/1196828	self
https://www.suse.com/security/cve/CVE-2022-26495/	self
https://www.suse.com/security/cve/CVE-2022-26496/	self
https://www.suse.com/security/cve/CVE-2022-26495	external
https://bugzilla.suse.com/1196827	external
https://www.suse.com/security/cve/CVE-2022-26496	external
https://bugzilla.suse.com/1196828	external

JSON

To clipboard

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}

CVE-2022-26495 (GCVE-0-2022-26495)

Vulnerability from cvelistv5 – Published: 2022-03-06 00:00 – Updated: 2024-08-03 05:03

Summary

In nbd-server in nbd before 3.24, there is an integer overflow with a resultant heap-based buffer overflow. A value of 0xffffffff in the name length field will cause a zero-sized buffer to be allocated for the name, resulting in a write to a dangling pointer. This issue exists for the NBD_OPT_INFO, NBD_OPT_GO, and NBD_OPT_EXPORT_NAME messages.

Severity

No CVSS data available.

CWE

Assigner

mitre mitre root

References

8 references

URL	Tags
https://lists.debian.org/nbd/2022/01/msg00037.html
https://sourceforge.net/projects/nbd/files/nbd/
https://lists.debian.org/debian-lts-announce/2022…	mailing-list
https://www.debian.org/security/2022/dsa-5100	vendor-advisory
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisory
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisory
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisory
https://security.gentoo.org/glsa/202402-10	vendor-advisory

Show details on NVD website

JSON

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CVE-2022-26496 (GCVE-0-2022-26496)

Vulnerability from cvelistv5 – Published: 2022-03-06 00:00 – Updated: 2024-08-03 05:03

Summary

In nbd-server in nbd before 3.24, there is a stack-based buffer overflow. An attacker can cause a buffer overflow in the parsing of the name field by sending a crafted NBD_OPT_INFO or NBD_OPT_GO message with an large value as the length of the name.

Severity

No CVSS data available.

CWE

Assigner

mitre mitre root

References

9 references

URL	Tags
https://lists.debian.org/nbd/2022/01/msg00037.html
https://sourceforge.net/projects/nbd/files/nbd/
https://lists.debian.org/nbd/2022/01/msg00036.html
https://www.debian.org/security/2022/dsa-5100	vendor-advisory
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisory
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisory
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisory
http://packetstormsecurity.com/files/172148/Shann…
https://security.gentoo.org/glsa/202402-10	vendor-advisory

Show details on NVD website

JSON

To clipboard

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          {
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            "url": "http://packetstormsecurity.com/files/172148/Shannon-Baseband-fmtp-SDP-Attribute-Memory-Corruption.html"
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          "url": "https://lists.debian.org/nbd/2022/01/msg00036.html"
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          "name": "DSA-5100",
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          "url": "https://www.debian.org/security/2022/dsa-5100"
        },
        {
          "name": "FEDORA-2022-62adf9a1e0",
          "tags": [
            "vendor-advisory"
          ],
          "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IZHR73XMAJTCFGKUZRXVTZKCK2X3IFNA/"
        },
        {
          "name": "FEDORA-2022-807e431d5f",
          "tags": [
            "vendor-advisory"
          ],
          "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PU5JFD4PEJED72TZLZ5R2Q2SFXICU5I5/"
        },
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          "name": "FEDORA-2022-263873fb70",
          "tags": [
            "vendor-advisory"
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        },
        {
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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.

Detection rules are retrieved from Rulezet.

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

SUSE-SU-2022:1276-1

CVE-2022-26495 (GCVE-0-2022-26495)

CVE-2022-26496 (GCVE-0-2022-26496)

Tags

Sightings

Nomenclature

Related by attack behaviour