CVE-2018-12020

mainproc.c in GnuPG before 2.2.8 mishandles the original filename during decryption and verification actions, which allows remote attackers to spoof the output that GnuPG sends on file descriptor 2 to other programs that use the "--status-fd 2" option. For example, the OpenPGP data might represent an original filename that contains line feed characters in conjunction with GOODSIG or VALIDSIG status codes.

• CWE-706

• http://openwall.com/lists/oss-security/2018/06/08/2Mailing List, Third Party Advisory
• http://packetstormsecurity.com/files/152703/Johnny-You-Are-Fired.htmlThird Party Advisory, VDB Entry
• http://seclists.org/fulldisclosure/2019/Apr/38Mailing List, Third Party Advisory
• http://www.openwall.com/lists/oss-security/2019/04/30/4Mailing List, Third Party Advisory
• http://www.securityfocus.com/bid/104450Broken Link
• http://www.securitytracker.com/id/1041051Broken Link
• https://access.redhat.com/errata/RHSA-2018:2180Third Party Advisory
• https://access.redhat.com/errata/RHSA-2018:2181Third Party Advisory
• https://dev.gnupg.org/T4012Patch, Vendor Advisory
• https://github.com/RUB-NDS/Johnny-You-Are-FiredTechnical Description, Third Party Advisory
• https://github.com/RUB-NDS/Johnny-You-Are-Fired/blob/master/paper/johnny-fired.pdfTechnical Description, Third Party Advisory
• https://help.ecostruxureit.com/display/public/UADCE725/Security+fixes+in+StruxureWare+Data+Center+Expert+v7.6.0Third Party Advisory
• https://lists.debian.org/debian-lts-announce/2021/12/msg00027.htmlMailing List, Third Party Advisory
• https://lists.gnupg.org/pipermail/gnupg-announce/2018q2/000425.htmlMailing List, Vendor Advisory
• https://usn.ubuntu.com/3675-1/Third Party Advisory
• https://usn.ubuntu.com/3675-2/Third Party Advisory
• https://usn.ubuntu.com/3675-3/Third Party Advisory
• https://usn.ubuntu.com/3964-1/Third Party Advisory
• https://www.debian.org/security/2018/dsa-4222Third Party Advisory
• https://www.debian.org/security/2018/dsa-4223Third Party Advisory
• https://www.debian.org/security/2018/dsa-4224Third Party Advisory
• http://openwall.com/lists/oss-security/2018/06/08/2Mailing List, Third Party Advisory
• http://packetstormsecurity.com/files/152703/Johnny-You-Are-Fired.htmlThird Party Advisory, VDB Entry
• http://seclists.org/fulldisclosure/2019/Apr/38Mailing List, Third Party Advisory
• http://www.openwall.com/lists/oss-security/2019/04/30/4Mailing List, Third Party Advisory
• http://www.securityfocus.com/bid/104450Broken Link
• http://www.securitytracker.com/id/1041051Broken Link
• https://access.redhat.com/errata/RHSA-2018:2180Third Party Advisory
• https://access.redhat.com/errata/RHSA-2018:2181Third Party Advisory
• https://dev.gnupg.org/T4012Patch, Vendor Advisory
• https://github.com/RUB-NDS/Johnny-You-Are-FiredTechnical Description, Third Party Advisory
• https://github.com/RUB-NDS/Johnny-You-Are-Fired/blob/master/paper/johnny-fired.pdfTechnical Description, Third Party Advisory
• https://help.ecostruxureit.com/display/public/UADCE725/Security+fixes+in+StruxureWare+Data+Center+Expert+v7.6.0Third Party Advisory
• https://lists.debian.org/debian-lts-announce/2021/12/msg00027.htmlMailing List, Third Party Advisory
• https://lists.gnupg.org/pipermail/gnupg-announce/2018q2/000425.htmlMailing List, Vendor Advisory
• https://usn.ubuntu.com/3675-1/Third Party Advisory
• https://usn.ubuntu.com/3675-2/Third Party Advisory
• https://usn.ubuntu.com/3675-3/Third Party Advisory
• https://usn.ubuntu.com/3964-1/Third Party Advisory
• https://www.debian.org/security/2018/dsa-4222Third Party Advisory
• https://www.debian.org/security/2018/dsa-4223Third Party Advisory
• https://www.debian.org/security/2018/dsa-4224Third Party Advisory

Published

Jun 8, 2018

Last Modified

Jun 17, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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