Skip to content
Noroxi
CVE-2010-3856· NVD / CVE Program· CNA redhat

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 envi

Noroxi assessment

Priority: Monitor (action score 31/100)

  • A ready-made attack module is public (Metasploit); exploiting it takes no special expertise.
  • Probability of exploitation in the next 30 days: 11.1% (FIRST EPSS); higher than 95.9% of all records.
  • No special conditions are required; it is repeatable.
  • Fixed version: glibc (Debian:12) 2.11.2-8; glibc (Debian:5.0) 2.7-18lenny6, 2.7-18lenny7; glibc (Red Hat:enterprise_linux:5::client) 0:2.5-49.el5_5.7.

Low priority for now. Upgrade to glibc (Debian:12) 2.11.2-8; glibc (Debian:5.0) 2.7-18lenny6, 2.7-18lenny7; glibc (Red Hat:enterprise_linux:5::client) 0:2.5-49.el5_5.7 or later.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

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.

HighCVSS 7.2 · v2.0—Weaponized Fix available
Published
Jan 7, 2011
Updated
Jun 16, 2026
EPSS
11.1% · 95th percentile

Report tools

JSON

Action score

31

Monitor

Low priority for now.

CVSS
28 / 40 · 7.2 / 10
CISA KEV
0 / 30 · Not listed
EPSS
3 / 30 · 11.1%

Get told when this record changes

  • Not in KEV: no record of exploitation in the wild
  • Weaponized exploit exists
  • A fix has been released

If any of these changes, we'll tell you in the daily email digest.

Follow CVE-2010-3856

When you'll hear from us

  • when it enters CISA KEV
  • when exploit code appears or is weaponized
  • when the record is updated (including a fixed version)
  • when EPSS rises 20 points in a week

One daily email digest (06:00 UTC); connect a webhook for KEV listings and weaponized exploits instantly.

Your free account also gets you

Running WordPress? Scan your site free with WP Lens

  • Stack alerts: add the products and versions you run, get the new CVEs that affect them
  • Uptime monitoring: 1 site, instant email when it goes down
  • Add your domain: subdomains and takeover risk scanned every week (1 domain)
  • 10 scans an hour on the security tools (3 a day without an account), an API key and MCP
  • All your scans in one panel: findings, what changed in the last scan, a report per domain or per client (PDF, share link)
All free tools

Sign up with email · Have an account? Sign in

Free account, no card. Unfollow any time.

Don't want an account? Get "Exploited this week" by email every MondayDon't want an account? RSS feed for gnu records

Running WordPress? Scan your site free with WP Lens

Is your version affected? Check it

Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

We use this product, ask for help

Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

VendorProduct
gnuglibc

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • gnu glibcup to 2.11.2 inclusive
  • gnu glibc1.00
  • gnu glibc1.01
  • gnu glibc1.02
  • gnu glibc1.03
  • gnu glibc1.04
  • gnu glibc1.05
  • gnu glibc1.06
  • gnu glibc1.07
  • gnu glibc1.08
  • gnu glibc1.09
  • gnu glibc1.09.1
  • gnu glibc2.0
  • gnu glibc2.0.1
  • gnu glibc2.0.2
  • gnu glibc2.0.3
  • gnu glibc2.0.4
  • gnu glibc2.0.5
  • gnu glibc2.0.6
  • gnu glibc2.1

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

EcosystemPackageAffected rangeFix
Debian:12glibcbefore 2.11.2-82.11.2-8
Debian:5.0glibcbefore 2.7-18lenny62.7-18lenny6
Debian:5.0glibcbefore 2.7-18lenny72.7-18lenny7
Red Hat:enterprise_linux:5::clientglibcbefore 0:2.5-49.el5_5.70:2.5-49.el5_5.7
Red Hat:enterprise_linux:5::clientglibc-commonbefore 0:2.5-49.el5_5.70:2.5-49.el5_5.7
Red Hat:enterprise_linux:5::clientglibc-debuginfobefore 0:2.5-49.el5_5.70:2.5-49.el5_5.7
Red Hat:enterprise_linux:5::clientglibc-debuginfo-commonbefore 0:2.5-49.el5_5.70:2.5-49.el5_5.7
Red Hat:enterprise_linux:5::clientglibc-develbefore 0:2.5-49.el5_5.70:2.5-49.el5_5.7
Red Hat:enterprise_linux:5::clientglibc-headersbefore 0:2.5-49.el5_5.70:2.5-49.el5_5.7
Red Hat:enterprise_linux:5::clientglibc-utilsbefore 0:2.5-49.el5_5.70:2.5-49.el5_5.7
Red Hat:enterprise_linux:5::clientnscdbefore 0:2.5-49.el5_5.70:2.5-49.el5_5.7
Red Hat:enterprise_linux:6::clientglibcbefore 0:2.12-1.7.el6_0.30:2.12-1.7.el6_0.3
Red Hat:enterprise_linux:6::clientglibc-commonbefore 0:2.12-1.7.el6_0.30:2.12-1.7.el6_0.3
Red Hat:enterprise_linux:6::clientglibc-debuginfobefore 0:2.12-1.7.el6_0.30:2.12-1.7.el6_0.3
Red Hat:enterprise_linux:6::clientglibc-develbefore 0:2.12-1.7.el6_0.30:2.12-1.7.el6_0.3
Red Hat:enterprise_linux:6::clientglibc-headersbefore 0:2.12-1.7.el6_0.30:2.12-1.7.el6_0.3
Red Hat:enterprise_linux:6::clientglibc-staticbefore 0:2.12-1.7.el6_0.30:2.12-1.7.el6_0.3
Red Hat:enterprise_linux:6::clientglibc-utilsbefore 0:2.12-1.7.el6_0.30:2.12-1.7.el6_0.3
Red Hat:enterprise_linux:6::clientnscdbefore 0:2.12-1.7.el6_0.30:2.12-1.7.el6_0.3

Same product

gnu: all records

Other highest-scoring records for the same primary product.

  • CVE-2023-4911Glibc: buffer overflow in ld.so leading to privilege escalationKEV
    80Now
  • CVE-2015-0235Heap-based buffer overflow in the __nss_hostname_digits_dots function in glibc 2.2, and other 2.x versions before 2.18, allows context-depen
    68This week
  • CVE-2015-7547Multiple stack-based buffer overflows in the (1) send_dg and (2) send_vc functions in the libresolv library in the GNU C Library (aka glibc
    59Plan

Published before and after this one in the same product

  • ← EarlierCVE-2010-3192Oct 14, 2010 · Certain run-time memory protection mechanisms in the GNU C Library (aka glibc or libc6) print argv[0] and backtrace information, which might
    20Monitor
  • ← EarlierCVE-2010-3847Jan 7, 2011 · elf/dl-load.c in ld.so in the GNU C Library (aka glibc or libc6) through 2.11.2, and 2.12.x through 2.12.1, does not properly handle a value
    30Monitor
  • Later →CVE-2010-4051Jan 13, 2011 · The regcomp implementation in the GNU C Library (aka glibc or libc6) through 2.11.3, and 2.12.x through 2.12.2, allows context-dependent att
    32Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
debian:glibc2.11.2-8 · Debian:12Package registry (OSV)
red hat:glibc0:2.5-49.el5_5.7 · Red Hat:enterprise_linux:5::clientPackage registry (OSV)
red hat:glibc-common0:2.5-49.el5_5.7 · Red Hat:enterprise_linux:5::clientPackage registry (OSV)
red hat:glibc-debuginfo0:2.5-49.el5_5.7 · Red Hat:enterprise_linux:5::clientPackage registry (OSV)
red hat:glibc-debuginfo-common0:2.5-49.el5_5.7 · Red Hat:enterprise_linux:5::clientPackage registry (OSV)
red hat:glibc-devel0:2.5-49.el5_5.7 · Red Hat:enterprise_linux:5::clientPackage registry (OSV)
red hat:glibc-headers0:2.5-49.el5_5.7 · Red Hat:enterprise_linux:5::clientPackage registry (OSV)
red hat:glibc-static0:2.12-1.7.el6_0.3 · Red Hat:enterprise_linux:6::clientPackage registry (OSV)
red hat:glibc-utils0:2.5-49.el5_5.7 · Red Hat:enterprise_linux:5::clientPackage registry (OSV)
red hat:nscd0:2.5-49.el5_5.7 · Red Hat:enterprise_linux:5::clientPackage registry (OSV)

Exploit status

Weaponized

A ready exploit tool or active in-the-wild use is known for this vulnerability. This should be your top priority.

Evidence

  • Metasploit module ×1
  • Exploit-DB entry ×4

Noroxi does not host or link to exploit code. Metasploit module names and Nuclei template ids are shown (names, not code); Exploit-DB entries and PoC repositories are given as counts only.

Public exploit evidence
SourceKindDate
Exploit-DB entrylocal2011-11-10
Exploit-DB entrylocal2018-02-12
Exploit-DB entrylocal2018-02-12
Exploit-DB entrylocal2010-10-22
Metasploit moduleexploit/linux/local/glibc_ld_audit_dso_load_priv_escglibc LD_AUDIT Arbitrary DSO Load Privilege Escalationexploit2010-10-18

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

  1. Metasploit-82 d
  2. First PoC-78 d
  3. Published
  4. TodayOct 19, 2026+5763 d
EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

  • No special conditions are required; it is repeatable.

If successful

Confidentiality
C · data can be read
Integrity
C · data or configuration can be modified
Availability
C · the service can be disrupted
Attack complexity
Low
Confidentiality impact
C
Integrity impact
C
Availability impact
C

Weakness class (CWE)

CWE-264 · Permissions, Privileges, and Access Controls

CVSS vector

AV:L/AC:L/Au:N/C:C/I:C/A:C

nvd-primary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

MITRE has no CAPEC/ATT&CK mapping for this CWE.

Change log

  1. Fix✗ → ✓

For records you follow, these changes also arrive as notifications. →

References

Show all references (19 more)

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records