CVE-2007-3998: canonical ubuntu_linux Improper Input Validation

Modified

Published 04-09-2007Last modified 07-08-2024

Vulnerability summary

CVE-2007-3998 is a medium (CVSS 5.0) Improper Input Validation vulnerability in canonical ubuntu_linux. EPSS estimates a 2.99% chance of exploitation in the next 30 days, higher than 87.3% of scored vulnerabilities.

Priority

Routine

Not severe (CVSS 5, network access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?

CVSS score

5.0/10

010

Medium · v2.0 (NVD)

EPSS score

2.99%

0%100%

Low · 0.00 pp in 30 days

KEVNot listedNot listed by any tracked catalog.

RansomwareNot flaggedNo ransomware use recorded.

Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 7

DSA-1444-1 DSA-1578-1 DTSA-61-1 RHSA-2007:0889 RHSA-2007:0890 RHSA-2007:0891+1 more

Timeline

04-09-2007
PublishedVulnerability first disclosed.
07-08-2024
Last modifiedVulnerability information updated.

Description

The wordwrap function in PHP 4 before 4.4.8, and PHP 5 before 5.2.4, does not properly use the breakcharlen variable, which allows remote attackers to cause a denial of service (divide-by-zero error and application crash, or infinite loop) via certain arguments, as demonstrated by a 'chr(0), 0, ""' argument set.

CVSS metrics

1 score · 1 source · 1 version

v2.05.0

EPSS trend

Probability

2.99%

Chance of exploitation in the next 30 days

Percentile

87%

Versus all other CVEs

30-day change

No change 0.00 pp

From 2.99% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs

CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

CWE-20Improper Input ValidationThe product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.

Affected systems

Version check

Known conditions: network-reachable, no authentication (CVSS vector). Other conditions: not stated in public data.

Canonical1 product

ubuntu_linuxEOL6.06 | 6.10 | 7.04 | 7.10

Debian1 product

debian_linuxEOL3.1 | 4.0

Php1 product

php≥ 4.0.0, < 4.4.8 | ≥ 5.0.0, < 5.2.4

3 vendors · 3 products

References

35 links

secunia.com/advisories/30288Third Party AdvisoryX Refsource SECUNIA
secunia.com/advisories/26822Third Party AdvisoryX Refsource SECUNIA
launchpad.net/bugs/173043X Refsource CONFIRMThird Party Advisory
oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10603VDB EntrySignatureX Refsource OVALThird Party Advisory
lists.opensuse.org/opensuse-security-announce/2008-01/msg00006.htmlVendor AdvisoryX Refsource SUSEThird Party Advisory
secunia.com/advisories/28658Third Party AdvisoryX Refsource SECUNIA
www.redhat.com/archives/fedora-package-announce/2007-September/msg00354.htmlVendor AdvisoryX Refsource FEDORAThird Party Advisory
secunia.com/advisories/26967Third Party AdvisoryX Refsource SECUNIA
www.debian.org/security/2008/dsa-1444Vendor AdvisoryX Refsource DEBIANThird Party Advisory
www.gentoo.org/security/en/glsa/glsa-200710-02.xmlVendor AdvisoryX Refsource GENTOOThird Party Advisory

Show all 35 references

secunia.com/advisories/27864Third Party AdvisoryX Refsource SECUNIA
www.php.net/ChangeLog-5.phpX Refsource CONFIRMVendor Advisory
secunia.com/advisories/26930Third Party AdvisoryX Refsource SECUNIA
www.trustix.org/errata/2007/0026/Vendor AdvisoryX Refsource TRUSTIXBroken Link
rhn.redhat.com/errata/RHSA-2007-0889.htmlVendor AdvisoryX Refsource REDHATThird Party Advisory
usn.ubuntu.com/549-1/Vendor AdvisoryX Refsource UBUNTUThird Party Advisory
issues.rpath.com/browse/RPL-1693X Refsource CONFIRMBroken Link
secunia.com/advisories/28249Third Party AdvisoryX Refsource SECUNIA
www.debian.org/security/2008/dsa-1578Vendor AdvisoryX Refsource DEBIANThird Party Advisory
issues.rpath.com/browse/RPL-1702X Refsource CONFIRMBroken Link
secunia.com/advisories/27545Third Party AdvisoryX Refsource SECUNIA
support.avaya.com/elmodocs2/security/ASA-2007-449.htmX Refsource CONFIRMThird Party Advisory
secunia.com/advisories/26838Third Party AdvisoryX Refsource SECUNIA
secweb.se/en/advisories/php-wordwrap-vulnerability/X Refsource MISCThird Party Advisory
secunia.com/advisories/27377Third Party AdvisoryX Refsource SECUNIA
www.mandriva.com/security/advisories?name=MDKSA-2007:187Vendor AdvisoryX Refsource MANDRIVAThird Party Advisory
secunia.com/advisories/27102Third Party AdvisoryX Refsource SECUNIA
www.vupen.com/english/advisories/2007/3023VDB EntryX Refsource VUPENPermissions RequiredThird Party Advisory
www.php.net/releases/5_2_4.phpX Refsource CONFIRMVendor Advisory
secunia.com/advisories/26895Third Party AdvisoryX Refsource SECUNIA
www.ubuntu.com/usn/usn-549-2Vendor AdvisoryX Refsource UBUNTUThird Party Advisory
www.redhat.com/support/errata/RHSA-2007-0890.htmlVendor AdvisoryX Refsource REDHATThird Party Advisory
www.redhat.com/support/errata/RHSA-2007-0891.htmlVendor AdvisoryX Refsource REDHATThird Party Advisory
secunia.com/advisories/26871Third Party AdvisoryX Refsource SECUNIA
secunia.com/advisories/26642Third Party AdvisoryX Refsource SECUNIA