SUSE Mutt Moderate Loop NULL Pointer Fix Vulnerability 2026-2300-1
suse
June 8, 2026
An update that solves six vulnerabilities and has one security fix can now be installed.
Summary
## This update for mutt fixes the following issues * CVE-2026-43859: `strfcpy` used instead of `memcpy` for the IMAP `auth_cram` MD5 digest (bsc#1263897). * CVE-2026-43860: truncation of `hash_passwd` by one byte for IMAP `auth_cram` MD5 digest (bsc#1263896). * CVE-2026-43861: missing check for `\0` in `url_pct_decode` (bsc#1263895). * CVE-2026-43862: mishandling of the `imap_auth_gss` security level (bsc#1263894). * CVE-2026-43863: infinite loop in `data_object_to_stream` in `crypt-gpgme.c` (bsc#1263893). * CVE-2026-43864: NULL pointer dereference in function `show_sig_summary` (bsc#1263892). ## Patch Instructions: To install this SUSE update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
Topics Covered
References
* bsc#1263892
* bsc#1263893
* bsc#1263894
* bsc#1263895
* bsc#1263896
* bsc#1263897
* bsc#1264047
Cross-
* CVE-2026-43859
* CVE-2026-43860
* CVE-2026-43861
* CVE-2026-43862
* CVE-2026-43863
* CVE-2026-43864
CVSS scores:
* CVE-2026-43859 ( SUSE ): 6.3
CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N
* CVE-2026-43859 ( SUSE ): 4.8 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N
* CVE-2026-43859 ( NVD ): 3.7 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N
* CVE-2026-43860 ( SUSE ): 6.3
CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N
* CVE-2026-43860 ( SUSE ): 4.8 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N
* CVE-2026-43860 ( NVD ): 3.7 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N
* CVE-2026-43861 ( SUSE ): 6.9
PREVIOUS
NEXT
Severity
moderate
Lowest
Low
Medium
High
Critical
Announcement ID: SUSE-SU-2026:2300-1
Release Date: 2026-06-08T13:54:59Z
Rating: moderate
Topics Covered
Get the latest News and Insights
Get the latest Linux and open source security news straight to your inbox.
Related News
Powered By
Linux Security - Your source for Top Linux News, Advisories, HOWTOs and Feature Releases
QUICK LINKS
subscribe to newsletters!
Like staying secure? So do we.
Sign up for updates, tips, and alerts!