Slackware alert SSA:2026-186-01 (mutt)
| From: | Slackware Security Team <security@slackware.com> | |
| To: | slackware-security@slackware.com | |
| Subject: | [slackware-security] mutt (SSA:2026-186-01) | |
| Date: | Sun, 05 Jul 2026 14:38:43 -0700 | |
| Message-ID: | <alpine.LNX.2.02.2607051438210.28459@connie.slackware.com> |
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 [slackware-security] mutt (SSA:2026-186-01) New mutt packages are available for Slackware 15.0 and -current to fix a security issue. Here are the details from the Slackware 15.0 ChangeLog: +--------------------------+ patches/packages/mutt-2.4.1-i586-1_slack15.0.txz: Upgraded. This update fixes a security issue: Prevent unsigned int overflow in imap_cmd_step buffer growth. The idata->blen field is unsigned int (32-bit) while the companion variable len is size_t (64-bit on LP64). When a malicious IMAP server sends a response line longer than UINT_MAX bytes without newline, the expression wraps to a small value, causing safe_realloc() to shrink the buffer while len retains its original huge value. The subsequent mutt_socket_readln() then writes far past the shrunken allocation. Fix by changing idata->blen from unsigned int to size_t, matching the type of len and preventing the overflow on all platforms. (* Security fix *) +--------------------------+ Where to find the new packages: +-----------------------------+ Thanks to the friendly folks at the OSU Open Source Lab (http://osuosl.org) for donating FTP and rsync hosting to the Slackware project! :-) Also see the "Get Slack" section on http://slackware.com for additional mirror sites near you. Updated package for Slackware 15.0: ftp://ftp.slackware.com/pub/slackware/slackware-15.0/patc... Updated package for Slackware x86_64 15.0: ftp://ftp.slackware.com/pub/slackware/slackware64-15.0/pa... Updated package for Slackware -current: ftp://ftp.slackware.com/pub/slackware/slackware-current/s... Updated package for Slackware x86_64 -current: ftp://ftp.slackware.com/pub/slackware/slackware64-current... MD5 signatures: +-------------+ Slackware 15.0 package: f11f2ee43019a8d4dfe091b9847edb26 mutt-2.4.1-i586-1_slack15.0.txz Slackware x86_64 15.0 package: 4ec2b1a46429b01ba5cd0802ade731f2 mutt-2.4.1-x86_64-1_slack15.0.txz Slackware -current package: 2118fea459aa2b9f2189234c4d915606 n/mutt-2.4.1-i686-1.txz Slackware x86_64 -current package: e6718228d75941323740361ca6a90114 n/mutt-2.4.1-x86_64-1.txz Installation instructions: +------------------------+ Upgrade the package as root: # upgradepkg mutt-2.4.1-i586-1_slack15.0.txz +-----+ Slackware Linux Security Team http://slackware.com/gpg-key security@slackware.com +------------------------------------------------------------------------+ | To leave the slackware-security mailing list: | +------------------------------------------------------------------------+ | Send an email to majordomo@slackware.com with this text in the body of | | the email message: | | | | unsubscribe slackware-security | | | | You will get a confirmation message back containing instructions to | | complete the process. Please do not reply to this email address. | +------------------------------------------------------------------------+ -----BEGIN PGP SIGNATURE----- iHkEARECADkWIQTsVknaQB4iq/pnNu9qRGPAQBAiMwUCakrKaBsUgAAAAAAEAA5t YW51MiwyLjUrMS4xMiwyLDIACgkQakRjwEAQIjNZiACdHJea01dORu0OLAh0lwVF udbA9j0AnA/SXJMnrk8FBt/fQhl4quIB7P+K =DbJK -----END PGP SIGNATURE-----