CVE-2008-4210: linux linux_kernel
Vulnerability summary
CVE-2008-4210 is a medium (CVSS 4.6) vulnerability in linux linux_kernel. EPSS estimates a 2.16% chance of exploitation in the next 30 days, higher than 82.2% of scored vulnerabilities. 2 public exploits are recorded.
Weaponized exploit (exploit-database, 27-10-2008)
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 6Timeline
- 29-09-2008PublishedVulnerability first disclosed.
- 07-08-2024Last modifiedVulnerability information updated.
Description
fs/open.c in the Linux kernel before 2.6.22 does not properly strip setuid and setgid bits when there is a write to a file, which allows local users to gain the privileges of a different group, and obtain sensitive information or possibly have unspecified other impact, by creating an executable file in a setgid directory through the (1) truncate or (2) ftruncate function in conjunction with memory-mapped I/O.
CVSS metrics
1 score · 1 source · 1 versionEPSS trend
Probability
2.16%
Chance of exploitation in the next 30 days
Percentile
82%
Versus all other CVEs
30-day change
Increase +0.02 pp
From 2.14% 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
2 foundExploit Reference (securityfocus.com)
Maturity: unknown
Linux Kernel < 2.6.22 - 'ftruncate()'/'open()' Local Privilege Escalation
Maturity: weaponized
Weaknesses
CWE · root causeAffected systems
Known conditions: local access, no authentication (CVSS vector). Other conditions: not stated in public data.
Linux1 product
- linux_kernel≤ 2.6.21.7 | 2.2.27 | 2.4.36 | 2.4.36.1 | 2.4.36.2 | 2.4.36.3 | 2.4.36.4 | 2.4.36.5 | 2.4.36.6 | 2.6 | 2.6.18 | 2.6.18:rc1 | 2.6.18:rc2 | 2.6.18:rc3 | 2.6.18:rc4 | 2.6.18:rc5 | 2.6.18:rc6 | 2.6.18:rc7 | 2.6.19.4 | 2.6.19.5 | 2.6.19.6 | 2.6.19.7 | 2.6.20.16 | 2.6.20.17 | 2.6.20.18 | 2.6.20.19 | 2.6.20.20 | 2.6.20.21 | 2.6.21.5 | 2.6.21.6
1 vendor · 1 product
References
31 links- www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.22X Refsource CONFIRM
- git.kernel.orgX Refsource CONFIRM
- oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6386VDB EntrySignatureX Refsource OVAL
Show all 31 references
- oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9511VDB EntrySignatureX Refsource OVAL
- bugzilla.redhat.com/show_bug.cgi?id=463661X Refsource CONFIRM
- bugzilla.kernel.org/show_bug.cgi?id=8420X Refsource CONFIRM
- kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.22X Refsource CONFIRM