CVE-2019-19726
Vulnerability from cvelistv5
Published
2019-12-12 00:00
Modified
2024-08-05 02:25
Severity ?
Summary
OpenBSD through 6.6 allows local users to escalate to root because a check for LD_LIBRARY_PATH in setuid programs can be defeated by setting a very small RLIMIT_DATA resource limit. When executing chpass or passwd (which are setuid root), _dl_setup_env in ld.so tries to strip LD_LIBRARY_PATH from the environment, but fails when it cannot allocate memory. Thus, the attacker is able to execute their own library code as root.
References
cve@mitre.orghttp://packetstormsecurity.com/files/155658/Qualys-Security-Advisory-OpenBSD-Dynamic-Loader-Privilege-Escalation.htmlExploit, Third Party Advisory, VDB Entry
cve@mitre.orghttp://packetstormsecurity.com/files/155764/OpenBSD-Dynamic-Loader-chpass-Privilege-Escalation.htmlThird Party Advisory, VDB Entry
cve@mitre.orghttp://packetstormsecurity.com/files/174986/glibc-ld.so-Local-Privilege-Escalation.html
cve@mitre.orghttp://seclists.org/fulldisclosure/2019/Dec/31Exploit, Mailing List, Third Party Advisory
cve@mitre.orghttp://seclists.org/fulldisclosure/2023/Oct/11
cve@mitre.orghttp://www.openwall.com/lists/oss-security/2023/10/03/2
cve@mitre.orghttps://seclists.org/bugtraq/2019/Dec/25Exploit, Mailing List, Third Party Advisory
cve@mitre.orghttps://www.openbsd.org/errata66.htmlPatch, Vendor Advisory
cve@mitre.orghttps://www.openwall.com/lists/oss-security/2019/12/11/9Mailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108http://packetstormsecurity.com/files/155658/Qualys-Security-Advisory-OpenBSD-Dynamic-Loader-Privilege-Escalation.htmlExploit, Third Party Advisory, VDB Entry
af854a3a-2127-422b-91ae-364da2661108http://packetstormsecurity.com/files/155764/OpenBSD-Dynamic-Loader-chpass-Privilege-Escalation.htmlThird Party Advisory, VDB Entry
af854a3a-2127-422b-91ae-364da2661108http://packetstormsecurity.com/files/174986/glibc-ld.so-Local-Privilege-Escalation.html
af854a3a-2127-422b-91ae-364da2661108http://seclists.org/fulldisclosure/2019/Dec/31Exploit, Mailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108http://seclists.org/fulldisclosure/2023/Oct/11
af854a3a-2127-422b-91ae-364da2661108http://www.openwall.com/lists/oss-security/2023/10/03/2
af854a3a-2127-422b-91ae-364da2661108https://seclists.org/bugtraq/2019/Dec/25Exploit, Mailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://www.openbsd.org/errata66.htmlPatch, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://www.openwall.com/lists/oss-security/2019/12/11/9Mailing List, Third Party Advisory
Impacted products
Vendor Product Version
Show details on NVD website

To clipboard 

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