Race condition in the ia32 compatibility code for the execve system call in Linux kernel 2.4 before 2.4.31 and 2.6 before 2.6.6 allows local users to cause a denial of service (kernel panic) and possibly execute arbitrary code via a concurrent thread that increments a pointer count after the nargs function has counted the pointers, but before the count is copied from user space to kernel space, which leads to a buffer overflow.
CVE-2005-1768
This CVE was only ever scored under CVSS v2.0. NVD CVSS v2.0 base 3.7 — v2 rates that LOW (v2 bands: LOW 0.0–3.9 / MEDIUM 4.0–6.9 / HIGH 7.0–10.0; v2 has no CRITICAL band). Vector AV:L/AC:H/Au:N/C:P/I:P/A:P. CVSS v2 is an older, coarser metric than v3.1/v4.0 (no Scope, no User Interaction, no Attack Requirements), so it is not directly comparable to a v3 or v4 score. NVD has never re-scored this record under v3. EPSS predicts 0.5% exploitation probability in the next 30 days, which is reflected in EG Risk but does not lift the v2 base. Confidence: LOW.
- Lower severity and no public exploit yet
A fix is available — apply it.
- CVSS v2.0 (legacy)
- 3.7LOWNVD never assigned a CVSS v3 rating to this CVE
- EG Score
- 3.7(low)
- EG Risk
- 21(Track)EG Risk 21/100SSVC: Track
EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).
How it’s computedSeverity37% × 45%Exploitation0% × 40%Automatability30% × 15%Action: Routine — remediate on your standard cadence. - EPSS PROB
- 0%
- EPSS %ILE
- 40%
- KEV
- Not listed
Published
July 11, 2005
Last Modified
April 16, 2026
References (32)
- secalert@redhatftp://patches.sgi.com/support/free/security/advisories/20060402-01-U
- secalert@redhathttp://marc.info/?l=bugtraq&m=112110120216116&w=2
- secalert@redhathttp://secunia.com/advisories/15980
- secalert@redhathttp://secunia.com/advisories/17002
- secalert@redhathttp://secunia.com/advisories/18059
- secalert@redhathttp://secunia.com/advisories/19185
- secalert@redhathttp://secunia.com/advisories/19607
- secalert@redhathttp://securitytracker.com/id?1014442
- secalert@redhathttp://www.debian.org/security/2005/dsa-921
- secalert@redhathttp://www.novell.com/linux/security/advisories/2005_44_kernel.html
- secalert@redhathttp://www.redhat.com/support/errata/RHSA-2005-551.html
- secalert@redhathttp://www.redhat.com/support/errata/RHSA-2005-663.html
- secalert@redhathttp://www.securityfocus.com/bid/14205
- secalert@redhathttp://www.suresec.org/advisories/adv4.pdf
- secalert@redhathttp://www.vupen.com/english/advisories/2005/1878
Patch Availability(2)
| Vendor / Ecosystem | Fixed in / Patch | Released | Source |
|---|---|---|---|
| redhat | kernel-0:2.4.21-37.EL | 2005-09-28 | redhat |
| redhat | patch | 2005-08-25 | redhat |
Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.
Affected Packages
(11 across 1 ecosystem)
Debian:3.1(11)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| kernel-image-2.4.27-alpha | 2.4.27-10 | 2.4.27-10sarge1 | — |
| kernel-image-2.4.27-arm | 2.4.27-2 | 2.4.27-2sarge1 | — |
| kernel-image-2.4.27-i386 | 2.4.27-10 | 2.4.27-10sarge1 | — |
| kernel-image-2.4.27-ia64 | 2.4.27-10 | 2.4.27-10sarge1 | — |
| kernel-image-2.4.27-m68k | 2.4.27-3 | 2.4.27-3sarge1 | — |
| kernel-image-2.4.27-s390 | 2.4.27-2 | 2.4.27-2sarge1 | — |
| kernel-image-2.4.27-sparc | 2.4.27-9 | 2.4.27-9sarge1 | — |
| kernel-patch-2.4.27-arm | 2.4.27-1 | 2.4.27-1sarge1 | — |
| kernel-patch-2.4.27-mips | 2.4.27-10.040815-1 | 2.4.27-10.sarge1.040815-1 | — |
| kernel-patch-powerpc-2.4.27 | 2.4.27-10 | 2.4.27-10sarge1 | — |
| kernel-source-2.4.27 | 2.4.27-10 | 2.4.27-10sarge1 | — |
All Vendor Advisories
(2)
Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.
Data Freshness Timeline
(refreshed 2× in last 7d / 2× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
- 2026-09-10 09:23 UTCEPSS rescore
- 2026-09-04 04:59 UTCEPSS rescore
- 2026-08-05 19:11 UTCEPSS rescore
- 2026-07-26 13:26 UTCEG score recompute▲ 3.70
- 2026-07-25 14:11 UTCEPSS rescore
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- 2026-07-23 00:48 UTCEG score recompute
- 2026-07-23 00:28 UTCEG score recompute
- 2026-07-22 23:51 UTCEG score recompute
- 2026-07-22 21:32 UTCEG score recompute
- 2026-07-18 09:59 UTCEPSS rescore
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- 2026-05-31 22:28 UTCEPSS rescore
- 2026-05-31 12:43 UTCEG score recompute
- 2026-05-31 12:43 UTCVendor advisory
- 2026-05-31 12:43 UTCGHSA enrichment
- 2026-05-31 00:13 UTCEPSS rescore
- 2026-05-31 00:13 UTCEPSS rescore
- 2026-05-29 13:40 UTCEPSS rescore
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- 2026-05-20 11:20 UTCEPSS rescore
- 2026-05-20 11:20 UTCEPSS rescore
- 2026-05-18 21:29 UTCEPSS rescore
Frequently asked(4)
What is CVE-2005-1768?
When was CVE-2005-1768 disclosed?
Is CVE-2005-1768 actively exploited?
How do I remediate CVE-2005-1768?
Dependency Blast Radius
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