elf/dl-load.c in the GNU C Library (aka glibc or libc6) 2.19 through 2.26 mishandles RPATH and RUNPATH containing $ORIGIN for a privileged (
elf/dl-load.c in the GNU C Library (aka glibc or libc6) 2.19 through 2.26 mishandles RPATH and RUNPATH containing $ORIGIN for a privileged (setuid or AT_SECURE) program, which allows local users to gain privileges via a Trojan horse library in the current working directory, related to the fillin_rpath and decompose_rpath functions. This is associated with misinterpretion of an empty RPATH/RUNPATH token as the "./" directory. NOTE: this configuration of RPATH/RUNPATH for a privileged program is apparently very uncommon; most likely, no such program is shipped with any common Linux distribution.
- Published
- Dec 17, 2017
- Updated
- Jun 16, 2026
- EPSS
- 2.9% · 86th percentile
- CWE
- CWE-426
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Report tools
Action score
32
Monitor
Low priority for now.
- CVSS
- 31 / 40 · 7.8 / 10
- CISA KEV
- 0 / 30 · Not listed
- EPSS
- 1 / 30 · 2.9%
Affected systems
| Vendor | Product | CPE |
|---|---|---|
| gnu | glibc | cpe:2.3:a:gnu:glibc |
| redhat | enterprise linux desktop | cpe:2.3:o:redhat:enterprise_linux_desktop |
| redhat | enterprise linux server | cpe:2.3:o:redhat:enterprise_linux_server |
| redhat | enterprise linux workstation | cpe:2.3:o:redhat:enterprise_linux_workstation |
Affected versions
NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.
- gnu glibc2.19
- gnu glibc2.20
- gnu glibc2.21
- gnu glibc2.22
- gnu glibc2.23
- gnu glibc2.25
- gnu glibc2.26
- redhat enterprise linux desktop7.0
- redhat enterprise linux server7.0
- redhat enterprise linux workstation7.0
Versions reported by the vendor
Affected version ranges reported by the assigning authority (debian). Independent of NVD's CPE analysis and usually ahead of it.
n/a glibc 2.19 through 2.26
- glibc 2.19 through 2.26affected
Package-level exposure
OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.
| Ecosystem | Package | Affected range | Fix |
|---|---|---|---|
| Debian:12 | glibc | before 2.25-6 | 2.25-6 |
| openSUSE:Tumbleweed | glibc | before 2.34-1.2 | 2.34-1.2 |
| Red Hat:enterprise_linux:7::client | glibc | before 0:2.17-260.el7 | 0:2.17-260.el7 |
| Red Hat:enterprise_linux:7::client | glibc-common | before 0:2.17-260.el7 | 0:2.17-260.el7 |
| Red Hat:enterprise_linux:7::client | glibc-debuginfo | before 0:2.17-260.el7 | 0:2.17-260.el7 |
| Red Hat:enterprise_linux:7::client | glibc-debuginfo-common | before 0:2.17-260.el7 | 0:2.17-260.el7 |
| Red Hat:enterprise_linux:7::client | glibc-devel | before 0:2.17-260.el7 | 0:2.17-260.el7 |
| Red Hat:enterprise_linux:7::client | glibc-headers | before 0:2.17-260.el7 | 0:2.17-260.el7 |
| Red Hat:enterprise_linux:7::client | glibc-static | before 0:2.17-260.el7 | 0:2.17-260.el7 |
| Red Hat:enterprise_linux:7::client | glibc-utils | before 0:2.17-260.el7 | 0:2.17-260.el7 |
| Red Hat:enterprise_linux:7::client | nscd | before 0:2.17-260.el7 | 0:2.17-260.el7 |
| SUSE:Linux Enterprise Desktop 12 SP2 | glibc | before 2.22-62.3.4 | 2.22-62.3.4 |
Same product
gnu: all recordsOther highest-scoring records for the same primary product.
- CVE-2023-4911Glibc: buffer overflow in ld.so leading to privilege escalationKEV85Now
- 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-depen68This 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
- CVE-2024-2961The iconv() function in the GNU C Library versions 2.39 and older may overflow the output buffer passed to it by up to 4 bytes when converti55Plan
- CVE-2018-11236stdlib/canonicalize.c in the GNU C Library (aka glibc or libc6) 2.27 and earlier, when processing very long pathname arguments to the realpa41Plan
- CVE-2015-8779Stack-based buffer overflow in the catopen function in the GNU C Library (aka glibc or libc6) before 2.23 allows context-dependent attackers41Plan
Remediation
Which version to upgrade to
Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.
| Product / package | Fixed version | Source |
|---|---|---|
| debian:glibc | 2.25-6 · Debian:12 | Package registry (OSV) |
| opensuse:glibc | 2.34-1.2 · openSUSE:Tumbleweed | Package registry (OSV) |
| red hat:glibc | 0:2.17-260.el7 · Red Hat:enterprise_linux:7::client | Package registry (OSV) |
| red hat:glibc-common | 0:2.17-260.el7 · Red Hat:enterprise_linux:7::client | Package registry (OSV) |
| red hat:glibc-debuginfo | 0:2.17-260.el7 · Red Hat:enterprise_linux:7::client | Package registry (OSV) |
| red hat:glibc-debuginfo-common | 0:2.17-260.el7 · Red Hat:enterprise_linux:7::client | Package registry (OSV) |
| red hat:glibc-devel | 0:2.17-260.el7 · Red Hat:enterprise_linux:7::client | Package registry (OSV) |
| red hat:glibc-headers | 0:2.17-260.el7 · Red Hat:enterprise_linux:7::client | Package registry (OSV) |
| red hat:glibc-static | 0:2.17-260.el7 · Red Hat:enterprise_linux:7::client | Package registry (OSV) |
| red hat:glibc-utils | 0:2.17-260.el7 · Red Hat:enterprise_linux:7::client | Package registry (OSV) |
| red hat:nscd | 0:2.17-260.el7 · Red Hat:enterprise_linux:7::client | Package registry (OSV) |
| suse:glibc | 2.22-62.3.4 · SUSE:Linux Enterprise Desktop 12 SP2 | Package registry (OSV) |
Exploit status
Proof of concept available
A public proof of concept or detection signature exists. Exploit knowledge is out there; don't delay patching.
Evidence
- Proof-of-concept repository on GitHub ×1
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.
| Source | Kind | Date |
|---|---|---|
| Proof-of-concept repository on GitHub | stars:0 | 2018-01-03 |
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.
- Published
- First PoC+16 d
- TodaySep 30, 2026+3209 d
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 researchersFinders, 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
- Someone with local access to the system can trigger it.
- No account or password is required.
- A user must open a link or visit a page.
- No special conditions are required; it is repeatable.
If successful
- Confidentiality
- high · data can be read
- Integrity
- high · data or configuration can be modified
- Availability
- high · the service can be disrupted
- Attack vector
- Local
- Attack complexity
- Low
- Privileges required
- None
- User interaction
- Required
- Scope
- Unchanged
- Confidentiality impact
- High
- Integrity impact
- High
- Availability impact
- High
Weakness class (CWE)
CWE-426 · Untrusted Search PathCVSS vector
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
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.
Noroxi analysis
No Noroxi analysis for this record yet
We don't hand-write analysis for all 385,000+ vulnerabilities; that wouldn't be honest. For notable, high-impact vulnerabilities our team writes the mechanism, detection and remediation steps.
We use this product, ask for helpChange log
- Fix✗ → ✓
For records you follow, these changes also arrive as notifications. →
References
- www.securityfocus.com/bid/102228
- access.redhat.com/errata/RHBA-2019:0327
- access.redhat.com/errata/RHSA-2018:3092
- bugs.debian.org/884615
- sourceware.org/bugzilla/show_bug.cgi?id=22625
- sourceware.org/ml/libc-alpha/2017-12/msg00528.html
Vendor advisories and official records. Exploit/PoC links are deliberately left out.