CVE-2023-42465: Sudo before 1.9.15 might allow row hammer attacks (for authentication bypass or privilege escalation) because application logic sometimes is
Noroxi assessment
Priority: Monitor (action score 28/100)
- The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
- Probability of exploitation in the next 30 days: 0.54% (FIRST EPSS).
- Someone with local access to the system can trigger it. A low-privileged account is enough. No user action is required. Special conditions such as timing or configuration are required.
- Fixed version: sudo (AlmaLinux:9) 1.9.5p2-10.el9_3; sudo-python-plugin (AlmaLinux:9) 1.9.5p2-10.el9_3; sudo (Debian:13) 1.9.15p2-2.
Low priority for now. Upgrade to sudo (AlmaLinux:9) 1.9.5p2-10.el9_3; sudo-python-plugin (AlmaLinux:9) 1.9.5p2-10.el9_3; sudo (Debian:13) 1.9.15p2-2 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
Sudo before 1.9.15 might allow row hammer attacks (for authentication bypass or privilege escalation) because application logic sometimes is based on not equaling an error value (instead of equaling a success value), and because the values do not resist flips of a single bit.
- Published
- Dec 22, 2023
- Updated
- Jun 17, 2026
- EPSS
- 0.5% · 45th percentile
- CWE
- —
Report tools
Action score
28
Monitor
Low priority for now.
- CVSS
- 28 / 40 · 7.0 / 10
- CISA KEV
- 0 / 30 · Not listed
- EPSS
- 0 / 30 · 0.5%
Get told when this record changes
- Not in KEV: no record of exploitation in the wild
- No public exploit code on record
- A fix has been released
If any of these changes, we'll tell you in the daily email digest.
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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 helpAffected 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.
| Vendor | Product | CPE |
|---|---|---|
| sudo project | sudo | cpe:2.3:a:sudo_project:sudo |
Affected versions
NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.
- sudo project sudobefore 1.9.15
Package-level exposure
OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.
| Ecosystem | Package | Affected range | Fix |
|---|---|---|---|
| AlmaLinux:9 | sudo | before 1.9.5p2-10.el9_3 | 1.9.5p2-10.el9_3 |
| AlmaLinux:9 | sudo-python-plugin | before 1.9.5p2-10.el9_3 | 1.9.5p2-10.el9_3 |
| Debian:12 | sudo | from 0 | — |
| Debian:13 | sudo | before 1.9.15p2-2 | 1.9.15p2-2 |
| openSUSE:Leap 15.5 | sudo | before 1.9.12p1-150500.7.10.1 | 1.9.12p1-150500.7.10.1 |
| openSUSE:Leap Micro 5.3 | sudo | before 1.9.9-150400.4.36.1 | 1.9.9-150400.4.36.1 |
| openSUSE:Tumbleweed | sudo | before 1.9.15p2-1.1 | 1.9.15p2-1.1 |
| Red Hat:enterprise_linux:8::baseos | sudo | before 0:1.9.5p2-1.el8_9 | 0:1.9.5p2-1.el8_9 |
| Red Hat:enterprise_linux:8::baseos | sudo-debuginfo | before 0:1.9.5p2-1.el8_9 | 0:1.9.5p2-1.el8_9 |
| Red Hat:enterprise_linux:8::baseos | sudo-debugsource | before 0:1.9.5p2-1.el8_9 | 0:1.9.5p2-1.el8_9 |
| Red Hat:enterprise_linux:9::appstream | sudo-debuginfo | before 0:1.9.5p2-10.el9_3 | 0:1.9.5p2-10.el9_3 |
| Red Hat:enterprise_linux:9::appstream | sudo-debugsource | before 0:1.9.5p2-10.el9_3 | 0:1.9.5p2-10.el9_3 |
| Red Hat:enterprise_linux:9::appstream | sudo-python-plugin | before 0:1.9.5p2-10.el9_3 | 0:1.9.5p2-10.el9_3 |
| Red Hat:enterprise_linux:9::appstream | sudo-python-plugin-debuginfo | before 0:1.9.5p2-10.el9_3 | 0:1.9.5p2-10.el9_3 |
| Red Hat:enterprise_linux:9::baseos | sudo | before 0:1.9.5p2-10.el9_3 | 0:1.9.5p2-10.el9_3 |
| Red Hat:rhel_eus:8.6::baseos | sudo | before 0:1.9.5p2-1.el8_6 | 0:1.9.5p2-1.el8_6 |
| Red Hat:rhel_eus:8.6::baseos | sudo-debuginfo | before 0:1.9.5p2-1.el8_6 | 0:1.9.5p2-1.el8_6 |
| Red Hat:rhel_eus:8.6::baseos | sudo-debugsource | before 0:1.9.5p2-1.el8_6 | 0:1.9.5p2-1.el8_6 |
| Red Hat:rhel_eus:8.8::baseos | sudo | before 0:1.9.5p2-1.el8_8 | 0:1.9.5p2-1.el8_8 |
| Red Hat:rhel_eus:8.8::baseos | sudo-debuginfo | before 0:1.9.5p2-1.el8_8 | 0:1.9.5p2-1.el8_8 |
| Red Hat:rhel_eus:8.8::baseos | sudo-debugsource | before 0:1.9.5p2-1.el8_8 | 0:1.9.5p2-1.el8_8 |
| Red Hat:rhel_eus:9.0::appstream | sudo-debuginfo | before 0:1.9.5p2-7.el9_0.4 | 0:1.9.5p2-7.el9_0.4 |
| Red Hat:rhel_eus:9.0::appstream | sudo-debugsource | before 0:1.9.5p2-7.el9_0.4 | 0:1.9.5p2-7.el9_0.4 |
| Red Hat:rhel_eus:9.0::appstream | sudo-python-plugin | before 0:1.9.5p2-7.el9_0.4 | 0:1.9.5p2-7.el9_0.4 |
+12
Same product
sudo project: all recordsOther highest-scoring records for the same primary product.
- CVE-2021-3156Sudo before 1.9.5p2 contains an off-by-one error that can result in a heap-based buffer overflow, which allows privilege escalation to root KEV91Now
- CVE-2025-32463Sudo before 1.9.17p1 allows local users to obtain root access because /etc/nsswitch.conf from a user-controlled directory is used with the -KEV78This week
- CVE-2019-14287In Sudo before 1.8.28, an attacker with access to a Runas ALL sudoer account can bypass certain policy blacklists and session PAM modules, a54Plan
Published before and after this one in the same product
- ← EarlierCVE-2023-28486Mar 15, 2023 · Sudo before 1.9.13 does not escape control characters in log messages.21Monitor
- ← EarlierCVE-2023-28487Mar 15, 2023 · Sudo before 1.9.13 does not escape control characters in sudoreplay output.21Monitor
- Later →CVE-2023-7090Dec 23, 2023 · Sudo: improper handling of ipa_hostname leads to privilege mismanagement35Monitor
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 |
|---|---|---|
| almalinux:sudo | 1.9.5p2-10.el9_3 · AlmaLinux:9 | Package registry (OSV) |
| almalinux:sudo-python-plugin | 1.9.5p2-10.el9_3 · AlmaLinux:9 | Package registry (OSV) |
| debian:sudo | 1.9.15p2-2 · Debian:13 | Package registry (OSV) |
| opensuse:sudo | 1.9.12p1-150500.7.10.1 · openSUSE:Leap 15.5 | Package registry (OSV) |
| red hat:sudo | 0:1.9.5p2-1.el8_6 · Red Hat:rhel_eus:8.6::baseos | Package registry (OSV) |
| red hat:sudo-debuginfo | 0:1.9.5p2-7.el9_0.4 · Red Hat:rhel_eus:9.0::appstream | Package registry (OSV) |
| red hat:sudo-debugsource | 0:1.9.5p2-7.el9_0.4 · Red Hat:rhel_eus:9.0::appstream | Package registry (OSV) |
| red hat:sudo-python-plugin | 0:1.9.5p2-7.el9_0.4 · Red Hat:rhel_eus:9.0::appstream | Package registry (OSV) |
| red hat:sudo-python-plugin-debuginfo | 0:1.9.5p2-7.el9_0.4 · Red Hat:rhel_eus:9.0::appstream | Package registry (OSV) |
| suse:sudo | 1.9.12p1-150500.7.10.1 · SUSE:Linux Enterprise Micro 5.5 | Package registry (OSV) |
| suse:sudo | 1.9.5p2-150300.3.33.1 · SUSE:Linux Enterprise High Performance Computing 15 SP3-LTSS | Package registry (OSV) |
Exploit status
No known public exploit
No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.
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.
No dated events beyond publication.
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.
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.
- A low-privileged account is enough.
- No user action is required.
- Special conditions such as timing or configuration are required.
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
- High
- Privileges required
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality impact
- High
- Integrity impact
- High
- Availability impact
- High
Weakness class (CWE)
—
CVSS vector
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/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.
MITRE has no CAPEC/ATT&CK mapping for this CWE.
Change log
- Fix✗ → ✓
For records you follow, these changes also arrive as notifications. →
References
Show all references (11 more)Show less
- github.com/sudo-project/sudo/commit/7873f8334c8d31031f8cfa83bd97ac6029309e4f
- github.com/sudo-project/sudo/releases/tag/SUDO_1_9_15
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/R4Q23NHCKCLFIHSNY6KJ27GM7FSCEVXM/
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/U6XMRUJCPII4MPWG43HTYR76DGLEYEFZ/
- security.gentoo.org/glsa/202401-29
- security.netapp.com/advisory/ntap-20240208-0002/
- www.sudo.ws/releases/changelog/
- www.openwall.com/lists/oss-security/2025/09/23/2
- www.openwall.com/lists/oss-security/2025/09/24/6
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/R4Q23NHCKCLFIHSNY6KJ27GM7FSCEVXM/
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/U6XMRUJCPII4MPWG43HTYR76DGLEYEFZ/
Vendor advisories and official records. Exploit/PoC links are deliberately left out.