VIR Vulnerability Intelligence Relay

CVE-2010-3856

high
Published 2011-01-07 · Modified 2026-04-29
💬 Discuss on Community ✚ Propose mitigation
CVSS v3
—
CVSS v4 NEW
—
not yet in upstream
VIR risk
8.2

Description

ld.so in the GNU C Library (aka glibc or libc6) before 2.11.3, and 2.12.x before 2.12.2, does not properly restrict use of the LD_AUDIT environment variable to reference dynamic shared objects (DSOs) as audit objects, which allows local users to gain privileges by leveraging an unsafe DSO located in a trusted library directory, as demonstrated by libpcprofile.so.

Predictions

Exploit likelihood
20%
Patch ETA
—

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

No mitigations published for this CVE yet.

The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.

✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here with source_tier=community-verified.

Exploits

Public proof-of-concept code below. AS-IS, for defenders and authorised testing only.

Exploit-DB

EDB-18105 local linux verified
zx2c4 · 2011-11-10

glibc - 'LD_AUDIT' Arbitrary DSO Load Privilege Escalation

Source code queued for fetch — refresh in a moment.
EDB-44025 local linux verified
Metasploit · 2018-02-12

glibc - 'LD_AUDIT' Arbitrary DSO Load Privilege Escalation (Metasploit)

Source code queued for fetch — refresh in a moment.
EDB-15304 local linux verified
Tavis Ormandy · 2010-10-22

GNU C Library 2.x (libc6) - Dynamic Linker LD_AUDIT Arbitrary DSO Load Privilege Escalation

Source code queued for fetch — refresh in a moment.

Metasploit modules

exploit_linux/local/glibc_ld_audit_dso_load_priv_esc rank 600
glibc LD_AUDIT Arbitrary DSO Load Privilege Escalation
Source fetch failed: fetch_error — view the original via the link above.

OS impact
debian Debian Fixed 5 releases
VersionStatusFixed in
trixie Fixed 2.11.2-8
sid Fixed 2.11.2-8
forky Fixed 2.11.2-8
bullseye Fixed 2.11.2-8
bookworm Fixed 2.11.2-8

Application impact
VendorProductVersionsFixed
gnuglibc{"endIncluding":"2.11.2"}
gnuglibc1.00
gnuglibc1.01
gnuglibc1.02
gnuglibc1.03
gnuglibc1.04
gnuglibc1.05
gnuglibc1.06
gnuglibc1.07
gnuglibc1.08
gnuglibc1.09
gnuglibc1.09.1
gnuglibc2.0
gnuglibc2.0.1
gnuglibc2.0.2
gnuglibc2.0.3
gnuglibc2.0.4
gnuglibc2.0.5
gnuglibc2.0.6
gnuglibc2.1
gnuglibc2.1.1
gnuglibc2.1.1.6
gnuglibc2.1.2
gnuglibc2.1.3
gnuglibc2.1.3.10
gnuglibc2.1.9
gnuglibc2.2
gnuglibc2.2.1
gnuglibc2.2.2
gnuglibc2.2.3
gnuglibc2.2.4
gnuglibc2.2.5
gnuglibc2.3
gnuglibc2.3.1
gnuglibc2.3.2
gnuglibc2.3.3
gnuglibc2.3.4
gnuglibc2.3.5
gnuglibc2.3.6
gnuglibc2.3.10
gnuglibc2.4
gnuglibc2.5
gnuglibc2.5.1
gnuglibc2.6
gnuglibc2.6.1
gnuglibc2.7
gnuglibc2.8
gnuglibc2.9
gnuglibc2.10
gnuglibc2.10.1
gnuglibc2.10.2
gnuglibc2.11
gnuglibc2.11.1
gnuglibc2.12.0
gnuglibc2.12.1

References

CWEs

CWE-264

Community-verified mitigations for this CVE will appear above when contributors publish them.

Verify integrity in audit chain (admin only). AS-IS.