01 Record

CVE-2004-2771

The expand function in fio.c in Heirloom mailx 12.5 and earlier and BSD mailx 8.1.2 and earlier allows remote attackers to execute arbitrary commands via shell metacharacters in an email address.

UnratedPUBLISHEDCNA: redhat

CNA base scoreUnratedNo CNA CVSS vector

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02 Description

The expand function in fio.c in Heirloom mailx 12.5 and earlier and BSD mailx 8.1.2 and earlier allows remote attackers to execute arbitrary commands via shell metacharacters in an email address.

03 Exploitation and scoring

Exploitation: Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
SSVC decision: Not assessed by CISA
EPSS probability: 6.85% probability of exploitation activity in the next 30 days.
EPSS percentile: Equal to or higher than the score of 93.9% of scored records. A rank, not a probability.
NVD base score: The NVD has published no score for this record
NVD CVSS vector: No NVD score to derive
NVD analysis status: Modified. NVD last modified this record on 2026-09-23.
Red Hat severity: Moderate. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published

2014-12-24 18:00Z11 YR AGO

Last updated

2024-08-08 01:36Z2 YR AGO

Reserved

2012-01-04

Assigning CNA

redhat

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

CWE-20Improper Input ValidationClass
CWE-78Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')Base

Data version

5.1

Document digest

7c008673493566d6bcfc857693985264865b6cb4a40a2680cd36590217734319

05 Affected products

VendorProductVersionsPlatforms

bsd_mailx_projectbsd_mailxNot specified—

heirloommailxNot specified—

oraclelinuxNot specified—

redhatenterprise_linuxNot specified—

06 References

linux.oracle.comhttp://linux.oracle.com/errata/ELSA-2014-1999.htmlx_refsource_CONFIRM
www.debian.orgDSA-3105http://www.debian.org/security/2014/dsa-3105vendor-advisoryx_refsource_DEBIAN
secunia.com61693http://secunia.com/advisories/61693third-party-advisoryx_refsource_SECUNIA
bugs.debian.orghttps://bugs.debian.org/cgi-bin/bugreport.cgi?bug=278748x_refsource_CONFIRM
seclists.org[oss-security] 20141216 mailx issues (CVE-2004-2771, CVE-2014-7844)http://seclists.org/oss-sec/2014/q4/1066mailing-listx_refsource_MLIST
secunia.com60940http://secunia.com/advisories/60940third-party-advisoryx_refsource_SECUNIA
secunia.com61585http://secunia.com/advisories/61585third-party-advisoryx_refsource_SECUNIA
rhn.redhat.comRHSA-2014:1999http://rhn.redhat.com/errata/RHSA-2014-1999.htmlvendor-advisoryx_refsource_REDHAT

07 Fixed in

Debian 12

bsd-mailx
Fixed in 8.1.2-0.20071201cvs-1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 13

bsd-mailx
Fixed in 8.1.2-0.20071201cvs-1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 14

bsd-mailx
Fixed in 8.1.2-0.20071201cvs-1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu 14.04 LTS

heirloom-mailx
Fixed in 12.5-2+deb7u1build0.14.04.1

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.