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CVE-2012-0042

14
FAUCET Score

CVE-2012-0042 describes a denial-of-service vulnerability in Wireshark versions 1.4.x before 1.4.11 and 1.6.x before 1.6.5, affecting products like Red Hat Enterprise Linux and Wireshark itself. The flaw stems from improper string conversions in epan/to_str.c, allowing a remote attacker to crash the application via a crafted packet, leading to a NULL pointer dereference. This vulnerability has a low CVSS score of 2.9 (AV:A/AC:M/Au:N/C:N/I:N/A:P), indicating an adjacent network attack with medium complexity and only partial availability impact. There is no evidence of active exploitation, no known exploit code in Metasploit, Nuclei, or ExploitDB, and minimal community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
1.6.0CPE matchmatch criteria
cpe:2.3:a:wireshark:wireshark:1.6.0:*:*:*:*:*:*:*
1.6.1CPE matchmatch criteria
cpe:2.3:a:wireshark:wireshark:1.6.1:*:*:*:*:*:*:*
1.6.2CPE matchmatch criteria
cpe:2.3:a:wireshark:wireshark:1.6.2:*:*:*:*:*:*:*
1.6.3CPE matchmatch criteria
cpe:2.3:a:wireshark:wireshark:1.6.3:*:*:*:*:*:*:*
1.6.4CPE matchmatch criteria
cpe:2.3:a:wireshark:wireshark:1.6.4:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

2.9LOW

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

Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
Access Vector
ADJACENT_NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Exploitability Score
5.5
Impact Score
2.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
1.88%
Probability of exploitation in next 30 days
EPSS Percentile
77.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0187 is in the 98th percentile among its peer group of 122 CVEs.

Social Chatter

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

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (3)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: wireshark-0:1.0.15-5.el5
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: wireshark-0:1.2.15-2.el6_2.1
View patch
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 4Fixed in: wireshark

Vendor Advisories (1)

redhatCVE-2012-0042Low

wireshark: NULL pointer vulnerabilities (wnpa-sec-2012-02)

Jan 10, 2012

References

anonsvn.wireshark.org / viewvc
Patch
rhn.redhat.com / errata/RHSA-2013-0125.html
bugs.wireshark.org / bugzilla/show_bug.cgi
ExploitPatch
secunia.com / advisories/47494
secunia.com / advisories/48947
secunia.com / advisories/54425
oval.cisecurity.org / repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A15368
gentoo.org / security/en/glsa/glsa-201308-05.xml
openwall.com / lists/oss-security/2012/01/11/7
securitytracker.com / id
wireshark.org / security/wnpa-sec-2012-02.html
Vendor Advisory