CVE-2011-1658 Privilege escalation in n/a
Local attackers can escalate privileges by exploiting $ORIGIN expansion in glibc's ld.so with crafted LD_PRELOAD values on setuid programs.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2011-1658?
CVE-2011-1658 is a low-severity vulnerability in Gnu Glibc, published on 8 Apr 2011. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
ld.so in the GNU C Library (aka glibc or libc6) 2.13 and earlier expands the $ORIGIN dynamic string token when RPATH is composed entirely of this token, which might allow local users to gain privileges by creating a hard link in an arbitrary directory to a (1) setuid or (2) setgid program with this RPATH value, and then executing the program with a crafted value for the LD_PRELOAD environment variable, a different vulnerability than CVE-2010-3847 and CVE-2011-0536. NOTE: it is not expected that any standard operating-system distribution would ship an applicable setuid or setgid program.
Weakness: CWE-264
Which versions are affected by CVE-2011-1658?
It affects 1 product.
Products include Gnu Glibc.
How do I fix CVE-2011-1658?
Apply the vendor's patch.
Is CVE-2011-1658 being exploited?
There is no known exploitation of CVE-2011-1658 in the wild and no public exploit code.
Other vulnerabilities in Gnu Glibc
Sources
Also known as GHSA-47f6-pj9c-f35v.