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Fencer Intel
medium 5.8

CVE-2010-0831 json

Directory traversal vulnerability in the extract_jar function in jartool.c in FastJar 0.98 allows remote attackers to create or overwrite a…

published 16y ago modified 4mo ago also EUVD-2010-0856

cvss
5.8
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
3.7%
EPSS 3.7% chance of exploitation in 30 days, percentile 89%
public exploits
0
none known

Summary

Directory traversal vulnerability in the extract_jar function in jartool.c in FastJar 0.98 allows remote attackers to create or overwrite arbitrary files via a .. (dot dot) in a non-initial pathname component in a filename within a .jar archive, a related issue to CVE-2005-1080. NOTE: this vulnerability exists because of an incomplete fix for CVE-2006-3619.

Patch / fix

  • fastjar Debian 14, Debian 13, Debian 12 2:0.98-3

debian advisories DEBIAN-CVE-2010-0831

  • gcc RHEL 5 4.1.2-50.el5
  • cpp RHEL 5 4.1.2-50.el5
  • libgcc RHEL 5 4.1.2-50.el5
  • libgcj RHEL 5 4.1.2-50.el5
  • gcc-c++ RHEL 5 4.1.2-50.el5
  • libgnat RHEL 5 4.1.2-50.el5
  • libobjc RHEL 5 4.1.2-50.el5
  • gcc-gnat RHEL 5 4.1.2-50.el5

red hat advisories RHSA-2011:0025

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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-2010-0831 updated cvss 2.6

fastjar: directory traversal vulnerabilities

  • Red Hat Enterprise Linux 4 gcc, gcc4
    affected: no fix planned “Will not fix”
  • Red Hat Enterprise Linux (v. 5 server) cpp 4.1.2-50.el5, gcc 4.1.2-50.el5, libgcc 4.1.2-50.el5, libgcj 4.1.2-50.el5, gcc-c++ 4.1.2-50.el5, libgnat 4.1.2-50.el5, +10 more Red Hat Enterprise Linux Desktop (v. 5 client) cpp 4.1.2-50.el5, gcc 4.1.2-50.el5, libgcc 4.1.2-50.el5, libgcj 4.1.2-50.el5, libgnat 4.1.2-50.el5, libobjc 4.1.2-50.el5, +3 more Red Hat Enterprise Linux Desktop Workstation (v. 5 client) gcc 4.1.2-50.el5, gcc-c++ 4.1.2-50.el5, gcc-gnat 4.1.2-50.el5, gcc-java 4.1.2-50.el5, gcc-objc 4.1.2-50.el5, gcc-objc++ 4.1.2-50.el5, +2 more
    fixed: vendor fix RHSA-2011:0025
  • Red Hat Enterprise Linux 5 gcc44 Red Hat Enterprise Linux 6 cpp, gcc, libgcc, libgcj, libitm, gcc-c++, +14 more
    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

3.68% chance of exploitation in the next 30 days, higher than 89% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • launchpad.net https://launchpad.net/bugs/540575 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 2.0 5.8 AV:N/AC:M/Au:N/C:N/I:P/A:P

Classification

Weakness
  • CWE-22 Improper Limitation of a Pathname to a Restricted Directory

References

Sources

Fencer Intel 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.