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CVE-2009-4013

31
FAUCET Score

CVE-2009-4013 describes multiple directory traversal vulnerabilities in various versions of Lintian, including 1.23.x, 1.24.x, and 2.x before 2.3.2, affecting Canonical and Debian Linux distributions. These flaws allow remote attackers to overwrite arbitrary files or access sensitive information by manipulating control field names, values, or patch system control files. With a CVSS score of 9.8 (Critical), this vulnerability presents a significant risk due to its network-based attack vector, low attack complexity, and high potential for confidentiality, integrity, and availability impacts. While no active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion has been observed, the critical severity warrants attention.

Impacted Technologies

VendorProductVersion(s)CPE
>= 1.23.0, <= 1.23.28CPE matchmatch criteria
cpe:2.3:a:debian:lintian:*:*:*:*:*:*:*:*
>= 1.24.0, <= 1.24.2.1CPE matchmatch criteria
cpe:2.3:a:debian:lintian:*:*:*:*:*:*:*:*
>= 2.0.0, < 2.3.2CPE matchmatch criteria
cpe:2.3:a:debian:lintian:*:*:*:*:*:*:*:*
4.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:4.0:*:*:*:*:*:*:*
5.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:5.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

9.8CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
5.68%
Probability of exploitation in next 30 days
EPSS Percentile
92.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0568 is in the 87th percentile among its peer group of 36,833 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

git.debian.org
Broken Link
git.debian.org
Broken Link
packages.debian.org / changelogs/pool/main/l/lintian/lintian_2.3.2/changelog
Broken Link
packages.qa.debian.org / l/lintian/news/20100128T015554Z.html
Mailing ListPatch
secunia.com / advisories/38375
Broken LinkVendor Advisory
secunia.com / advisories/38379
Broken LinkVendor Advisory
debian.org / security/2010/dsa-1979
Third Party Advisory
securityfocus.com / bid/37975
Broken LinkPatchThird Party AdvisoryVDB Entry
ubuntu.com / usn/USN-891-1
Third Party Advisory