screen buffer overflow
Published Oct 24, 2006
2.6
LOWCVSS 2.0
EPSS 2.29%
Description
Multiple unspecified vulnerabilities in the "utf8 combining characters handling" (utf8_handle_comb function in encoding.c) in screen before 4.0.3 allows user-assisted attackers to cause a denial of service (crash or hang) via certain UTF8 sequences.
Affected products
No data.
No data.
Red Hat Enterprise Linux 4
screen
Will not fix
Red Hat Enterprise Linux 5
screen
Not affected
Red Hat Enterprise Linux 6
screen
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 4 | screen | Will not fix | n/a |
| Red Hat Enterprise Linux 5 | screen | Not affected | n/a |
| Red Hat Enterprise Linux 6 | screen | Not affected | n/a |
No package ranges for this CVE.
Remediation
Red Hat statement
Red Hat no longer plans to fix this issue in Red Hat Enterprise Linux 4.
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:H/Au:N/C:N/I:N/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 1, 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 (14 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 2.29% (0.02286) | 82.56th | v5 (v2026.06.15) |
| Jun 15, 2026 | 2.10% (0.02096) | 79.17th | v5 (v2026.06.15) |
| Mar 17, 2025 | 1.58% (0.01580) | 80.32th | v4 (v2025.03.14) |
| Dec 17, 2024 | 2.02% (0.02021) | 88.60th | v3 (v2023.03.01) |
| May 5, 2024 | 4.84% (0.04837) | 92.70th | v3 (v2023.03.01) |
| Oct 5, 2023 | 3.96% (0.03965) | 90.95th | v3 (v2023.03.01) |
| Aug 28, 2023 | 3.39% (0.03392) | 90.20th | v3 (v2023.03.01) |
| Jul 21, 2023 | 2.20% (0.02202) | 87.94th | v3 (v2023.03.01) |
| Jun 13, 2023 | 1.88% (0.01876) | 86.71th | v3 (v2023.03.01) |
| Mar 28, 2023 | 1.34% (0.01337) | 84.00th | v3 (v2023.03.01) |
| Mar 7, 2023 | 1.28% (0.01277) | 83.56th | v3 (v2023.03.01) |
| Mar 6, 2023 | 2.69% (0.02686) | 82.85th | v2 (v2022.01.01) |
| Apr 1, 2022 | 2.69% (0.02686) | 81.17th | v2 (v2022.01.01) |
| Feb 4, 2022 | 2.69% (0.02686) | 62.66th | v2 (v2022.01.01) |
No CWE recorded.
References (25)
- http://docs.info.apple.com/article.html?artnum=305530 x_refsource_CONFIRM
- http://lists.apple.com/archives/security-announce/2007/May/msg00004.html vendor-advisoryx_refsource_APPLE
- http://lists.gnu.org/archive/html/screen-users/2006-10/msg00028.html mailing-listx_refsource_MLISTPatch
- http://secunia.com/advisories/22573 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/22583 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/22611 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/22647 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/22649 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/22707 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/22726 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/25402 third-party-advisoryx_refsource_SECUNIA
- http://security.gentoo.org/glsa/glsa-200611-01.xml vendor-advisoryx_refsource_GENTOO
- http://slackware.com/security/viewer.php?l=slackware-security&y=2006&m=slackware-security.480775 vendor-advisoryx_refsource_SLACKWARE
- http://www.debian.org/security/2006/dsa-1202 vendor-advisoryx_refsource_DEBIAN
- http://www.mandriva.com/security/advisories?name=MDKSA-2006:191 vendor-advisoryx_refsource_MANDRIVA
- http://www.openpkg.org/security/advisories/OpenPKG-SA-2006.026-screen.html vendor-advisoryx_refsource_OPENPKG
- http://www.securityfocus.com/bid/20727 vdb-entryx_refsource_BID
- http://www.ubuntu.com/usn/usn-370-1 vendor-advisoryx_refsource_UBUNTU
- http://www.vupen.com/english/advisories/2006/4189 vdb-entryx_refsource_VUPEN
- http://www.vupen.com/english/advisories/2007/1939 vdb-entryx_refsource_VUPEN
- https://access.redhat.com/security/cve/CVE-2006-4573 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=212056 Issue Tracking
- https://issues.rpath.com/browse/RPL-734 x_refsource_CONFIRM
- https://nvd.nist.gov/vuln/detail/CVE-2006-4573
- https://www.cve.org/CVERecord?id=CVE-2006-4573
Change history (0)
No recorded changes yet.