CVE-2014-2957

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Published 2014-09-04 · Modified 2026-05-06

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CVSS v3

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CVSS v4 NEW

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not yet in upstream

VIR risk

6.8

Description

The dmarc_process function in dmarc.c in Exim before 4.82.1, when EXPERIMENTAL_DMARC is enabled, allows remote attackers to execute arbitrary code via the From header in an email, which is passed to the expand_string function.

Predictions

Exploit likelihood

20%

Patch ETA

—

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

Mitigation details

Source: Debian Security Tracker · View original ↗ · DFSG

CVE-2014-2957 NameCVE-2014-2957 DescriptionThe dmarc_process function in dmarc.c in Exim before 4.82.1, when EXPERIMENTAL_DMARC is enabled, allows remote attackers to execute arbitrary code via the From header in an email, which is passed to the expand_string function. SourceCVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub…

CVE-2014-2957

Name	CVE-2014-2957
Description	The dmarc_process function in dmarc.c in Exim before 4.82.1, when EXPERIMENTAL_DMARC is enabled, allows remote attackers to execute arbitrary code via the From header in an email, which is passed to the expand_string function.
Source	CVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
exim4 (PTS)	bullseye	4.94.2-7+deb11u3	fixed
	bullseye (security)	4.94.2-7+deb11u5	fixed
	bookworm	4.96-15+deb12u9	fixed
	bookworm (security)	4.96-15+deb12u10	fixed
	trixie	4.98.2-1+deb13u2	fixed
	trixie (security)	4.98.2-1+deb13u3	fixed
	forky, sid	4.99.3-2	fixed

The information below is based on the following data on fixed versions.

Package	Type	Release	Fixed Version	Urgency
exim4	source	squeeze	(not affected)
exim4	source	wheezy	(not affected)
exim4	source	(unstable)	4.82.1-1	unimportant

Notes

[squeeze] - exim4 <not-affected> (Vulnerable code introduced in 4.82)
[wheezy] - exim4 <not-affected> (Vulnerable code introduced in 4.82)
https://lists.exim.org/lurker/message/20140528.122536.a31d60a4.en.html
EXPERIMENTAL_DMARC not enabled

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text fix

Notes

[squeeze] - exim4 <not-affected> (Vulnerable code introduced in 4.82)[wheezy] - exim4 <not-affected> (Vulnerable code introduced in 4.82)https://lists.exim.org/lurker/message/20140528.122536.a31d60a4.en.htmlEXPERIMENTAL_DMARC not enabled

OS impact

Debian Fixed 5 releases

Version	Status	Fixed in
trixie	Fixed	`4.82.1-1`
sid	Fixed	`4.82.1-1`
forky	Fixed	`4.82.1-1`
bullseye	Fixed	`4.82.1-1`
bookworm	Fixed	`4.82.1-1`

Application impact

Vendor	Product	Versions
exim	exim	`4.23`
exim	exim	`{"endIncluding":"4.82"}`
exim	exim	`4.00`
exim	exim	`4.01`
exim	exim	`4.02`
exim	exim	`4.03`
exim	exim	`4.04`
exim	exim	`4.05`
exim	exim	`4.10`
exim	exim	`4.11`
exim	exim	`4.12`
exim	exim	`4.14`
exim	exim	`4.20`
exim	exim	`4.21`
exim	exim	`4.22`
exim	exim	`4.24`
exim	exim	`4.30`
exim	exim	`4.31`
exim	exim	`4.32`
exim	exim	`4.33`
exim	exim	`4.34`
exim	exim	`4.40`
exim	exim	`4.41`
exim	exim	`4.42`
exim	exim	`4.43`
exim	exim	`4.44`
exim	exim	`4.50`
exim	exim	`4.51`
exim	exim	`4.52`
exim	exim	`4.53`
exim	exim	`4.54`
exim	exim	`4.60`
exim	exim	`4.61`
exim	exim	`4.62`
exim	exim	`4.63`
exim	exim	`4.64`
exim	exim	`4.65`
exim	exim	`4.66`
exim	exim	`4.67`
exim	exim	`4.68`
exim	exim	`4.69`
exim	exim	`4.70`
exim	exim	`4.71`
exim	exim	`4.72`
exim	exim	`4.73`
exim	exim	`4.74`
exim	exim	`4.75`
exim	exim	`4.76`
exim	exim	`4.77`
exim	exim	`4.80`
exim	exim	`4.80.1`

References

CWEs

CWE-20

Community-verified mitigations for this CVE will appear above when contributors publish them.

Verify integrity in audit chain (admin only). AS-IS.