CVE-2011-2895
X.Org libXfont LZW Decompressor Buffer Overflow Vulnerability
Description
The LZW decompressor in (1) the BufCompressedFill function in fontfile/decompress.c in X.Org libXfont before 1.4.4 and (2) compress/compress.c in 4.3BSD, as used in zopen.c in OpenBSD before 3.8, FreeBSD, NetBSD 4.0.x and 5.0.x before 5.0.3 and 5.1.x before 5.1.1, FreeType 2.1.9, and other products, does not properly handle code words that are absent from the decompression table when encountered, which allows context-dependent attackers to trigger an infinite loop or a heap-based buffer overflow, and possibly execute arbitrary code, via a crafted compressed stream, a related issue to CVE-2006-1168 and CVE-2011-2896.
INFO
Published Date :
Aug. 19, 2011, 5:55 p.m.
Last Modified :
Nov. 21, 2024, 1:29 a.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
10.0
Exploitability Score :
8.6
Affected Products
The following products are affected by CVE-2011-2895
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2011-2895.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2011-2895 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2011-2895 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
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CVE Modified by af854a3a-2127-422b-91ae-364da2661108
Nov. 21, 2024
Action Type Old Value New Value Added Reference http://cgit.freedesktop.org/xorg/lib/libXfont/commit/?id=d11ee5886e9d9ec610051a206b135a4cdc1e09a0 Added Reference http://ftp.netbsd.org/pub/NetBSD/security/advisories/NetBSD-SA2011-007.txt.asc Added Reference http://lists.apple.com/archives/security-announce/2012/Feb/msg00000.html Added Reference http://lists.apple.com/archives/security-announce/2012/May/msg00001.html Added Reference http://lists.apple.com/archives/security-announce/2015/Dec/msg00000.html Added Reference http://lists.apple.com/archives/security-announce/2015/Dec/msg00001.html Added Reference http://lists.apple.com/archives/security-announce/2015/Dec/msg00002.html Added Reference http://lists.apple.com/archives/security-announce/2015/Dec/msg00005.html Added Reference http://lists.freedesktop.org/archives/xorg-announce/2011-August/001721.html Added Reference http://lists.freedesktop.org/archives/xorg-announce/2011-August/001722.html Added Reference http://lists.opensuse.org/opensuse-security-announce/2011-09/msg00019.html Added Reference http://lists.opensuse.org/opensuse-security-announce/2011-12/msg00004.html Added Reference http://secunia.com/advisories/45544 Added Reference http://secunia.com/advisories/45568 Added Reference http://secunia.com/advisories/45599 Added Reference http://secunia.com/advisories/45986 Added Reference http://secunia.com/advisories/46127 Added Reference http://secunia.com/advisories/48951 Added Reference http://securitytracker.com/id?1025920 Added Reference http://support.apple.com/kb/HT5130 Added Reference http://support.apple.com/kb/HT5281 Added Reference http://www.debian.org/security/2011/dsa-2293 Added Reference http://www.mandriva.com/security/advisories?name=MDVSA-2011:153 Added Reference http://www.openbsd.org/cgi-bin/cvsweb/src/usr.bin/compress/zopen.c#rev1.17 Added Reference http://www.openwall.com/lists/oss-security/2011/08/10/10 Added Reference http://www.redhat.com/support/errata/RHSA-2011-1154.html Added Reference http://www.redhat.com/support/errata/RHSA-2011-1155.html Added Reference http://www.redhat.com/support/errata/RHSA-2011-1161.html Added Reference http://www.redhat.com/support/errata/RHSA-2011-1834.html Added Reference http://www.securityfocus.com/bid/49124 Added Reference http://www.ubuntu.com/usn/USN-1191-1 Added Reference https://bugzilla.redhat.com/show_bug.cgi?id=725760 Added Reference https://bugzilla.redhat.com/show_bug.cgi?id=727624 Added Reference https://exchange.xforce.ibmcloud.com/vulnerabilities/69141 Added Reference https://support.apple.com/HT205635 Added Reference https://support.apple.com/HT205637 Added Reference https://support.apple.com/HT205640 Added Reference https://support.apple.com/HT205641 -
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
CVE Modified by [email protected]
Aug. 29, 2017
Action Type Old Value New Value Removed Reference http://xforce.iss.net/xforce/xfdb/69141 [No Types Assigned] Added Reference https://exchange.xforce.ibmcloud.com/vulnerabilities/69141 [No Types Assigned] -
CVE Modified by [email protected]
Dec. 12, 2015
Action Type Old Value New Value Added Reference https://support.apple.com/HT205635 Added Reference http://lists.apple.com/archives/security-announce/2015/Dec/msg00005.html Added Reference https://support.apple.com/HT205637 Added Reference http://lists.apple.com/archives/security-announce/2015/Dec/msg00002.html Added Reference http://lists.apple.com/archives/security-announce/2015/Dec/msg00000.html Added Reference https://support.apple.com/HT205641 Added Reference http://lists.apple.com/archives/security-announce/2015/Dec/msg00001.html Added Reference https://support.apple.com/HT205640 -
Initial Analysis by [email protected]
Aug. 22, 2011
Action Type Old Value New Value
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2011-2895 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2011-2895
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
1.63 }} 0.30%
score
0.87132
percentile