ncompress: .bss buffer underflow in decompression
Published Aug 14, 2006
7.5
HIGHCVSS 2.0
EPSS 5.82%
Description
The decompress function in compress42.c in (1) ncompress 4.2.4 and (2) liblzw allows remote attackers to cause a denial of service (crash), and possibly execute arbitrary code, via crafted data that leads to a buffer underflow.
Affected products
No data.
No data.
Red Hat Enterprise Linux 3
ncompress-0:4.2.4-39.rhel3
Fixed · RHSA-2006:0663
Red Hat Enterprise Linux 4
ncompress-0:4.2.4-43.rhel4
Fixed · RHSA-2006:0663
Red Hat Enterprise Linux 5
busybox-1:1.2.0-13.el5
Fixed · RHSA-2012:0308
Red Hat Enterprise Linux 6
busybox-1:1.15.1-15.el6
Fixed · RHSA-2012:0810
Red Hat Enterprise Linux 4
busybox
Not affected
Red Hat Enterprise Linux 5
ncompress
Not affected
Red Hat Enterprise Linux 6
ncompress
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 3 | ncompress-0:4.2.4-39.rhel3 | Fixed | RHSA-2006:0663 |
| Red Hat Enterprise Linux 4 | ncompress-0:4.2.4-43.rhel4 | Fixed | RHSA-2006:0663 |
| Red Hat Enterprise Linux 5 | busybox-1:1.2.0-13.el5 | Fixed | RHSA-2012:0308 |
| Red Hat Enterprise Linux 6 | busybox-1:1.15.1-15.el6 | Fixed | RHSA-2012:0810 |
| Red Hat Enterprise Linux 4 | busybox | Not affected | n/a |
| Red Hat Enterprise Linux 5 | ncompress | Not affected | n/a |
| Red Hat Enterprise Linux 6 | ncompress | Not affected | n/a |
No package ranges for this CVE.
Remediation
Red Hat statement
Red Hat Enterprise Linux 5 is not vulnerable to this issue as it contains a backported patch.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
No CVSS v3.0 score for this CVE.
AV:N/AC:L/Au:N/C:P/I:P/A:P
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 4, 2026.
Score over time
2022-2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (15 key points)
Flat stretches are collapsed. Showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 4, 2026 | 5.82% (0.05817) | 92.93th | v5 (v2026.06.15) |
| Jun 15, 2026 | 5.42% (0.05422) | 91.65th | v5 (v2026.06.15) |
| Apr 2, 2025 | 9.81% (0.09814) | 92.25th | v4 (v2025.03.14) |
| Mar 30, 2025 | 7.76% (0.07756) | 91.13th | v4 (v2025.03.14) |
| Mar 29, 2025 | 10.81% (0.10812) | 88.89th | v4 (v2025.03.14) |
| Mar 17, 2025 | 7.76% (0.07756) | 91.33th | v4 (v2025.03.14) |
| Dec 12, 2024 | 10.32% (0.10325) | 95.23th | v3 (v2023.03.01) |
| Nov 8, 2023 | 10.32% (0.10325) | 94.38th | v3 (v2023.03.01) |
| Jul 26, 2023 | 12.92% (0.12919) | 94.75th | v3 (v2023.03.01) |
| May 11, 2023 | 13.15% (0.13146) | 94.69th | v3 (v2023.03.01) |
| Apr 3, 2023 | 14.07% (0.14069) | 94.78th | v3 (v2023.03.01) |
| Mar 7, 2023 | 13.65% (0.13647) | 94.68th | v3 (v2023.03.01) |
| Mar 6, 2023 | 8.23% (0.08228) | 93.49th | v2 (v2022.01.01) |
| Apr 1, 2022 | 8.23% (0.08228) | 92.89th | v2 (v2022.01.01) |
| Feb 4, 2022 | 8.23% (0.08228) | 82.23th | v2 (v2022.01.01) |
No CWE recorded.
References (29)
- ftp://patches.sgi.com/support/free/security/advisories/20060901-01-P.asc vendor-advisoryx_refsource_SGI
- http://bugs.gentoo.org/show_bug.cgi?id=141728 x_refsource_MISC
- http://downloads.avaya.com/css/P8/documents/100158840 x_refsource_CONFIRM
- http://rhn.redhat.com/errata/RHSA-2012-0810.html vendor-advisoryx_refsource_REDHAT
- http://secunia.com/advisories/21427 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/21434 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/21437 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/21467 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/21880 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/22036 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/22296 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/22377 third-party-advisoryx_refsource_SECUNIA
- http://security.gentoo.org/glsa/glsa-200610-03.xml vendor-advisoryx_refsource_GENTOO
- http://securitytracker.com/id?1016836 vdb-entryx_refsource_SECTRACK
- http://support.avaya.com/elmodocs2/security/ASA-2006-226.htm x_refsource_CONFIRM
- http://www.debian.org/security/2006/dsa-1149 vendor-advisoryx_refsource_DEBIAN
- http://www.mandriva.com/security/advisories?name=MDKSA-2006:140 vendor-advisoryx_refsource_MANDRIVA
- http://www.mandriva.com/security/advisories?name=MDVSA-2012:129 vendor-advisoryx_refsource_MANDRIVA
- http://www.novell.com/linux/security/advisories/2006_20_sr.html vendor-advisoryx_refsource_SUSE
- http://www.redhat.com/support/errata/RHSA-2006-0663.html vendor-advisoryx_refsource_REDHAT
- http://www.securityfocus.com/bid/19455 vdb-entryx_refsource_BID
- http://www.vupen.com/english/advisories/2006/3234 vdb-entryx_refsource_VUPEN
- https://access.redhat.com/security/cve/CVE-2006-1168 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=201919 Issue Tracking
- https://bugzilla.redhat.com/show_bug.cgi?id=728536 x_refsource_MISC
- https://exchange.xforce.ibmcloud.com/vulnerabilities/28315 vdb-entryx_refsource_XF
- https://nvd.nist.gov/vuln/detail/CVE-2006-1168
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9373 vdb-entrysignaturex_refsource_OVAL
- https://www.cve.org/CVERecord?id=CVE-2006-1168
Change history (0)
No recorded changes yet.