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openSUSE Leap 15.3: 2022:1276-1 Critical: NBD Buffer Overflow

suse
Calendar Grey April 20, 2022
Scroller Suse Esm H88
This release tackles several pivotal challenges in nbd, improving resilience and safeguarding for openSUSE users.
An update that fixes two vulnerabilities is now available

Summary

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

References

#1196827 #1196828

Cross- CVE-2022-26495 CVE-2022-26496

CVSS scores:

CVE-2022-26495 (NVD) : 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVE-2022-26495 (SUSE): 8.1 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

CVE-2022-26496 (NVD) : 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVE-2022-26496 (SUSE): 8.1 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected Products:

openSUSE Leap 15.3

openSUSE Leap 15.4

https://www.suse.com/security/cve/CVE-2022-26495.html

https://www.suse.com/security/cve/CVE-2022-26496.html

https://bugzilla.suse.com/1196827

https://bugzilla.suse.com/1196828

Severity
important
Lowest
Low
Medium
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Critical

Announcement ID: SUSE-SU-2022:1276-1
Rating: important

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