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Fencer Vulns
high 7.5

CVE-2008-1677 json

Buffer overflow in the regular expression handler in Red Hat Directory Server 8.0 and 7.1 before SP6 allows remote attackers to cause a den…

published 2008-05-12 18 y ago modified 2026-06-16 4 mo ago also EUVD-2008-1678

cvss
7.5
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
4.9%
EPSS 4.9% chance of exploitation in 30 days, percentile 92%
public exploits
0
none known

Summary

Buffer overflow in the regular expression handler in Red Hat Directory Server 8.0 and 7.1 before SP6 allows remote attackers to cause a denial of service (slapd crash) and possibly execute arbitrary code via a crafted LDAP query that triggers the overflow during translation to a regular expression.

Patch / fix

  • redhat-ds-base directory server 8 8.0.3-16.el5dsrv
  • redhat-ds directory server 7.1 7.1SP6-9.RHEL4

red hat advisories RHSA-2008:0269RHSA-2008:0268

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2008-1677 updated cvss 7.5

Server: insufficient buffer size for search patterns

  • Red Hat Directory Server 7.1 (for AS v. 3) redhat-ds 7.1SP6-9.RHEL3 Red Hat Directory Server 7.1 (for ES v. 3) redhat-ds 7.1SP6-9.RHEL3
    fixed: vendor fix RHSA-2008:0268
  • Red Hat Directory Server 8 (for RHEL 5 Server) redhat-ds-base 8.0.3-16.el5dsrv
    fixed: vendor fix RHSA-2008:0269
  • Red Hat RHEL 4 Directory Server AS redhat-ds 7.1SP6-9.RHEL4 Red Hat RHEL 4 Directory Server ES redhat-ds 7.1SP6-9.RHEL4
    fixed: vendor fix RHSA-2008:0268
  • Red Hat Directory Server 8.0 (for AS v. 4) redhat-ds-base 8.0.3-16.el4dsrv Red Hat Directory Server 8.0 (for ES v. 4) redhat-ds-base 8.0.3-16.el4dsrv
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

4.93% chance of exploitation in the next 30 days, higher than 92% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 2.0 7.5 AV:N/AC:L/Au:N/C:P/I:P/A:P

Classification

Weakness
  • CWE-120 Buffer Copy without Checking Size of Input

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.