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CVE-2011-1554

19
FAUCET Score

CVE-2011-1554 describes an off-by-one error in t1lib 5.1.2 and earlier, affecting products like Xpdf, teTeX, and other applications utilizing t1lib. This vulnerability allows remote attackers to trigger an application crash via a specially crafted PDF document containing a malicious Type 1 font, leading to an invalid memory read, integer overflow, and invalid pointer dereference. With a CVSS score of 4.3, it is considered a medium-severity denial-of-service vulnerability, requiring medium attack complexity and no authentication. 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
<= 5.1.2CPE matchmatch criteria
cpe:2.3:a:t1lib:t1lib:*:*:*:*:*:*:*:*
0.1CPE matchmatch criteria
cpe:2.3:a:t1lib:t1lib:0.1:alpha:*:*:*:*:*:*
0.2CPE matchmatch criteria
cpe:2.3:a:t1lib:t1lib:0.2:beta:*:*:*:*:*:*
0.3CPE matchmatch criteria
cpe:2.3:a:t1lib:t1lib:0.3:beta:*:*:*:*:*:*
0.4CPE matchmatch criteria
cpe:2.3:a:t1lib:t1lib:0.4:beta:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

4.3MEDIUM

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

Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Exploitability Score
8.6
Impact Score
2.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
5.42%
Probability of exploitation in next 30 days
EPSS Percentile
91.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0542 is in the 90th percentile among its peer group of 19,954 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.2 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 (4)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: tetex-0:3.0-33.15.el5_8.1
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: t1lib-0:5.1.2-6.el6_2.1
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: texlive-0:2007-57.el6_2
View patch
redhatno patchvia redhat_api
Product: Red Hat Enterprise Linux 4Fixed in: tetex

Vendor Advisories (1)

redhatCVE-2011-1554Moderate

t1lib: Off-by-one via crafted Type 1 font

Mar 28, 2011

References

rhn.redhat.com / errata/RHSA-2012-1201.html
secunia.com / advisories/43823
Vendor Advisory
secunia.com / advisories/48985
securityreason.com / securityalert/8171
securitytracker.com / id
security.gentoo.org / glsa/201701-57
foolabs.com / xpdf/download.html
Patch
kb.cert.org / vuls/id/376500
US Government Resource
kb.cert.org / vuls/id/MAPG-8ECL8X
US Government Resource
mandriva.com / security/advisories
securityfocus.com / archive/1/517205/100/0/threaded
toucan-system.com / advisories/tssa-2011-01.txt
vupen.com / english/advisories/2011/0728
Vendor Advisory