CVE-2018-12020

Description

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.

References

https://www.debian.org/security/2018/dsa-4224

https://www.debian.org/security/2018/dsa-4223

https://www.debian.org/security/2018/dsa-4222

https://usn.ubuntu.com/3964-1/

https://usn.ubuntu.com/3675-3/

https://usn.ubuntu.com/3675-2/

https://usn.ubuntu.com/3675-1/

https://lists.gnupg.org/pipermail/gnupg-announce/2018q2/000425.html

https://lists.debian.org/debian-lts-announce/2021/12/msg00027.html

https://help.ecostruxureit.com/display/public/UADCE725/Security+fixes+in+StruxureWare+Data+Center+Expert+v7.6.0

https://github.com/RUB-NDS/Johnny-You-Are-Fired/blob/master/paper/johnny-fired.pdf

https://github.com/RUB-NDS/Johnny-You-Are-Fired

https://dev.gnupg.org/T4012

https://access.redhat.com/errata/RHSA-2018:2181

https://access.redhat.com/errata/RHSA-2018:2180

http://www.securitytracker.com/id/1041051

http://www.securityfocus.com/bid/104450

http://www.openwall.com/lists/oss-security/2019/04/30/4

http://seclists.org/fulldisclosure/2019/Apr/38

http://packetstormsecurity.com/files/152703/Johnny-You-Are-Fired.html

http://openwall.com/lists/oss-security/2018/06/08/2

Details

Source: Mitre, NVD

Risk Information

CVSS v2

CVSS v3