CVE-2011-1764
Format string vulnerability in the dkim_exim_verify_finish function in src/dkim.c in Exim before 4.76 might allow remote attackers to execute arbitrary code or cause a denial of service (daemon crash) via format string specifiers in data used in DKIM…
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (3.94%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
Format string vulnerability in the dkim_exim_verify_finish function in src/dkim.c in Exim before 4.76 might allow remote attackers to execute arbitrary code or cause a denial of service (daemon crash) via format string specifiers in data used in DKIM logging, as demonstrated by an identity field containing a % (percent) character.
- CVSS 2.0
- 7.5 HIGHAV:N/AC:L/Au:N/C:P/I:P/A:P
- EPSS
- 3.94% probability · 90th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-134
- Affected
- exim/exim
- Source
- secalert@redhat.com
References
- http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=624670Patch
- http://bugs.exim.org/show_bug.cgi?id=1106Patch
- http://git.exim.org/exim.git/commit/337e3505b0e6cd4309db6bf6062b33fa56e06cf8Patch
- http://lists.opensuse.org/opensuse-security-announce/2011-05/msg00005.html
- http://secunia.com/advisories/51155
- http://www.debian.org/security/2011/dsa-2232
- https://bugzilla.redhat.com/show_bug.cgi?id=702474Patch
- http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=624670Patch
- http://bugs.exim.org/show_bug.cgi?id=1106Patch
- http://git.exim.org/exim.git/commit/337e3505b0e6cd4309db6bf6062b33fa56e06cf8Patch
- http://lists.opensuse.org/opensuse-security-announce/2011-05/msg00005.html
- http://secunia.com/advisories/51155
- http://www.debian.org/security/2011/dsa-2232
- https://bugzilla.redhat.com/show_bug.cgi?id=702474Patch
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.