CVE-2019-18276
Summary
| CVE | CVE-2019-18276 |
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| State | PUBLIC |
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| Assigner | [email protected] |
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| Source Priority | CVE Program / NVD first with legacy fallback |
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| Published | 2019-11-28 01:15:00 UTC |
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| Updated | 2023-11-07 03:06:00 UTC |
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| Description | An issue was discovered in disable_priv_mode in shell.c in GNU Bash through 5.0 patch 11. By default, if Bash is run with its effective UID not equal to its real UID, it will drop privileges by setting its effective UID to its real UID. However, it does so incorrectly. On Linux and other systems that support "saved UID" functionality, the saved UID is not dropped. An attacker with command execution in the shell can use "enable -f" for runtime loading of a new builtin, which can be a shared object that calls setuid() and therefore regains privileges. However, binaries running with an effective UID of 0 are unaffected. |
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NVD Known Affected Configurations (CPE 2.3)
References
| Reference | Source | Link | Tags |
|---|
| Oracle Critical Patch Update Advisory - April 2022 |
MISC |
www.oracle.com |
|
| Pony Mail! |
MLIST |
lists.apache.org |
Mailing List, Third Party Advisory |
| Bash: Privilege escalation (GLSA 202105-34) — Gentoo security |
GENTOO |
security.gentoo.org |
|
| CVE-2019-18276 GNU Bash Vulnerability in NetApp Products | NetApp Product Security |
CONFIRM |
security.netapp.com |
Third Party Advisory |
| commit bash-20190628 snapshot · bminor/bash@951bdaa · GitHub |
CONFIRM |
github.com |
Patch, Third Party Advisory |
| Bash 5.0 Patch 11 Privilege Escalation ≈ Packet Storm |
MISC |
packetstormsecurity.com |
Exploit, Third Party Advisory, VDB Entry |
| Zero-day vulnerability in Bash - Suidbash Google CTF Finals 2019 (pwn) - YouTube |
MISC |
www.youtube.com |
Exploit, Third Party Advisory |
| [mina-dev] 20210225 [jira] [Created] (FTPSERVER-500) Security vulnerability in common/lib/log4j-1.2.17.jar |
|
lists.apache.org |
|
| CVE Program record |
CVE.ORG |
www.cve.org |
canonical |
| NVD vulnerability detail |
NVD |
nvd.nist.gov |
canonical, analysis |
No vendor comments have been submitted for this CVE.
Legacy QID Mappings
- 159204 Oracle Enterprise Linux Security Update for bash (ELSA-2021-1679)
- 198748 Ubuntu Security Notification for Bash Vulnerability (USN-5380-1)
- 239319 Red Hat Update for bash (RHSA-2021:1679)
- 591406 Siemens SIMATIC S7-1500 CPU GNU/Linux subsystem Multiple Vulnerabilities (SSB-439005, ICSA-22-104-13)
- 710080 Gentoo Linux Bash Privilege escalation (GLSA 202105-34)
- 900091 CBL-Mariner Linux Security Update for bash 4.4.18
- 903014 Common Base Linux Mariner (CBL-Mariner) Security Update for bash (1908)
- 906213 Common Base Linux Mariner (CBL-Mariner) Security Update for bash (1908-1)
