CVE-2015-8077

Description

Integer overflow in the index_urlfetch function in imap/index.c in Cyrus IMAP 2.3.19, 2.4.18, and 2.5.6 allows remote attackers to have unspecified impact via vectors related to urlfetch range checks and the start_octet variable. NOTE: this vulnerability exists because of an incomplete fix for CVE-2015-8076.

Category

7.5
CVSS
Severity: High
CVSS 2.0 •
EPSS 3.45% Top 15%
Vendor Advisory opensuse.org Vendor Advisory opensuse.org Vendor Advisory opensuse.org Vendor Advisory opensuse.org Vendor Advisory cyrus.foundation
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://lists.andrew.cmu.edu/pipermail/cyrus-devel/2015-October/003534.html mailing list
https://docs.cyrus.foundation/imap/release-notes/2.5/x/2.5.7.html vendor advisory
http://www.openwall.com/lists/oss-security/2015/11/04/3 mailing list
http://www.openwall.com/lists/oss-security/2015/09/30/3 mailing list
http://lists.opensuse.org/opensuse-updates/2015-11/msg00156.html vendor advisory
https://cyrus.foundation/cyrus-imapd/commit/?id=745e161c834f1eb6d62fc14477f51dae799e1e08
http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00000.html vendor advisory
http://www.securitytracker.com/id/1034282 vdb entry
http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00066.html vendor advisory
http://lists.opensuse.org/opensuse-updates/2015-12/msg00015.html vendor advisory

Frequently Asked Questions

What is the severity of CVE-2015-8077?
CVE-2015-8077 has been scored as a high severity vulnerability.
How to fix CVE-2015-8077?
To fix CVE-2015-8077, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2015-8077 being actively exploited in the wild?
It is possible that CVE-2015-8077 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~3% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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