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CVE-2008-0171

19
FAUCET Score

CVE-2008-0171 describes a denial-of-service vulnerability in the Boost regex library (Boost.Regex) versions 1.33 and 1.34. An attacker can trigger a crash by providing an invalid regular expression to the regex/v4/perl_matcher_non_recursive.hpp component. This vulnerability has a CVSS score of 5.0, indicating a medium severity, with low attack complexity and no authentication required, leading to a partial availability impact. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
1.33CPE matchmatch criteria
cpe:2.3:a:boost:boost:1.33:*:*:*:*:*:*:*
1.34CPE matchmatch criteria
cpe:2.3:a:boost:boost:1.34:*:*:*:*:*:*:*
All Versions ImpactedCPE matchmatch criteria
cpe:2.3:a:boost:boost_regex_library:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

5.0MEDIUM

AV:N/AC:L/Au:N/C:N/I:N/A:P

Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
2.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
2.69%
Probability of exploitation in next 30 days
EPSS Percentile
84.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0269 is in the 77th percentile among its peer group of 23,701 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: boost-0:1.33.1-15.el5
View patch

Vendor Advisories (1)

redhatCVE-2008-0171Low

boost regular expression memory corruption flaws

Jan 11, 2008

References

bugs.gentoo.org / show_bug.cgi
lists.opensuse.org / opensuse-security-announce/2008-03/msg00004.html
secunia.com / advisories/28511
secunia.com / advisories/28527
secunia.com / advisories/28545
secunia.com / advisories/28705
secunia.com / advisories/28860
secunia.com / advisories/28943
secunia.com / advisories/29323
secunia.com / advisories/48099
issues.rpath.com / browse/RPL-2143
svn.boost.org / trac/boost/changeset/42674
Exploit
svn.boost.org / trac/boost/changeset/42745
Exploit
redhat.com / archives/fedora-package-announce/2008-January/msg00760.html
wiki.rpath.com / Advisories:rPSA-2008-0063
gentoo.org / security/en/glsa/glsa-200802-08.xml
mandriva.com / en/security/advisories
securityfocus.com / archive/1/488102/100/0/threaded
securityfocus.com / bid/27325
ubuntu.com / usn/usn-570-1
vupen.com / english/advisories/2008/0249