CVE-2023-38408: fedoraproject fedora Unquoted Search Path or Element
Vulnerability summary
CVE-2023-38408 is a critical (CVSS 9.8) Unquoted Search Path or Element vulnerability in fedoraproject fedora. EPSS estimates a 79.70% chance of exploitation in the next 30 days, higher than 99.6% of scored vulnerabilities. 3 public exploits are recorded.
Public exploit (reference, Date unknown)
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 1 · Related 2Timeline
- 20-07-2023PublishedVulnerability first disclosed.
- 14-10-2026Last modifiedVulnerability information updated.
Description
The PKCS#11 feature in ssh-agent in OpenSSH before 9.3p2 has an insufficiently trustworthy search path, leading to remote code execution if an agent is forwarded to an attacker-controlled system. (Code in /usr/lib is not necessarily safe for loading into ssh-agent.) NOTE: this issue exists because of an incomplete fix for CVE-2016-10009.
CVSS metrics
8 scores · 8 sources · 1 version- OSV · AlpineEcosystem advisory · calculated9.8CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- OSV · Red hatEcosystem advisory · calculated9.8CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- OSV · UbuntuEcosystem advisory · calculated9.8CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- OSV · DebianEcosystem advisory · calculated9.8CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- OSV · WolfiEcosystem advisory · calculated9.8CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- OSV · ChainguardEcosystem advisory · calculated9.8CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- NVDNIST9.8CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS trend
Probability
79.70%
Chance of exploitation in the next 30 days
Percentile
100%
Versus all other CVEs
30-day change
No change 0.00 pp
From 79.70% on 04-10-2026
Known exploited
Compare KEV catalogsNot in the CISA KEV catalog.
Not in the ENISA CNW catalog.
Not in the CIRCL catalog.
Public exploits
3 foundExploit Reference (qualys.com)
Maturity: unknown
Exploit Reference (openwall.com)
Maturity: unknown
Exploit Reference (packetstormsecurity.com)
Maturity: unknown
Weaknesses
CWE · root causeAffected systems
Known conditions: network-reachable, no authentication, no user interaction (CVSS vector). Other conditions: not stated in public data.
Suse42 products
- openssh-askpass-gnome&distro=SUSE Enterprise Storage 7< 8.1p1-150200.5.37.1
- openssh-askpass-gnome&distro=SUSE Enterprise Storage 7.1< 8.4p1-150300.3.22.1
- openssh-askpass-gnome&distro=SUSE Linux Enterprise High Performance Computing 15 SP1-LTSS< 7.9p1-150100.6.31.1
- openssh-askpass-gnome&distro=SUSE Linux Enterprise High Performance Computing 15 SP2-LTSS< 8.1p1-150200.5.37.1
- openssh-askpass-gnome&distro=SUSE Linux Enterprise High Performance Computing 15 SP3-ESPOS< 8.4p1-150300.3.22.1
Redhat19 products
- openssh< 0:8.7p1-11.el9_0 | < 0:8.0p1-7.el8_4 | < 0:7.4p1-23.el7_9 | < 0:8.0p1-5.el8_1.1 | < 0:8.0p1-5.el8_2 | < 0:8.7p1-30.el9_2 | < 0:8.0p1-15.el8_6 | < 0:8.0p1-19.el8_8 | < 0:5.3p1-125.el6_10
- openssh-askpass< 0:8.7p1-11.el9_0 | < 0:8.0p1-7.el8_4 | < 0:7.4p1-23.el7_9 | < 0:8.0p1-5.el8_1.1 | < 0:8.0p1-5.el8_2 | < 0:8.7p1-30.el9_2 | < 0:8.0p1-15.el8_6 | < 0:8.0p1-19.el8_8 | < 0:5.3p1-125.el6_10
- openssh-askpass-debuginfo< 0:8.7p1-11.el9_0 | < 0:8.0p1-7.el8_4 | < 0:8.0p1-5.el8_1.1 | < 0:8.0p1-5.el8_2 | < 0:8.7p1-30.el9_2 | < 0:8.0p1-15.el8_6 | < 0:8.0p1-19.el8_8
- openssh-cavs< 0:8.0p1-7.el8_4 | < 0:7.4p1-23.el7_9 | < 0:8.0p1-5.el8_1.1 | < 0:8.0p1-5.el8_2 | < 0:8.0p1-15.el8_6 | < 0:8.0p1-19.el8_8
- openssh-cavs-debuginfo< 0:8.0p1-7.el8_4 | < 0:8.0p1-5.el8_1.1 | < 0:8.0p1-5.el8_2 | < 0:8.0p1-15.el8_6 | < 0:8.0p1-19.el8_8
Opensuse6 products
- openssh-askpass-gnome&distro=openSUSE Leap 15.4< 8.4p1-150300.3.22.1
- openssh-askpass-gnome&distro=openSUSE Leap 15.5< 8.4p1-150300.3.22.1
- openssh&distro=openSUSE Leap 15.4< 8.4p1-150300.3.22.1
- openssh&distro=openSUSE Leap 15.5< 8.4p1-150300.3.22.1
- openssh&distro=openSUSE Leap Micro 5.3< 8.4p1-150300.3.22.1
Ubuntu2 products
- openssh< 1:6.6p1-2ubuntu2.13+esm1 | < 1:7.2p2-4ubuntu2.10+esm3 | < 1:7.2p2-4ubuntu2.fips.2.10.4 | All versions (No fix recorded) | < 1:7.6p1-4ubuntu0.7+esm1 | < 1:7.9p1-10~ubuntu18.04.fips.0.8 | < 1:8.2p1-4ubuntu0.8 | < 1:8.2p1-4ubuntu0.fips.0.8 | < 1:8.9p1-3ubuntu0.3
- openssh-ssh1All versions (No fix recorded)
Alpine1 product
- openssh< 9.0_p1-r4 | < 9.1_p1-r4
Chainguard1 product
- openssh< 9.3_p2-r0
Debian1 product
- openssh< 1:7.9p1-10+deb10u3 | < 1:9.2p1-2+deb12u1 | < 1:9.3p2-1
Fedoraproject1 product
- fedoraEOL37 | 38
Openbsd1 product
- openssh< 9.3 | 9.3 | 9.3:p1
Wolfi1 product
- openssh< 9.3_p2-r0
10 vendors · 75 products
References
61 links- www.qualys.com/2023/07/19/cve-2023-38408/rce-openssh-forwarded-ssh-agent.txtARTICLEWEBExploitThird Party Advisory
Show all 61 references
- packetstormsecurity.com/files/173661/OpenSSH-Forwarded-SSH-Agent-Remote-Code-Execution.htmlWEBExploitThird Party AdvisoryVDB Entry