Vulnerability Report

CVE-2015-8077

Title: Cyrus Imap Memory Corruption

Memory Corruption

Proof Of Concept

No public PoC currently indexed for CVE-2015-8077.

CWE Category CWE-189

Published Date Dec 03, 2015

Modified Date May 06, 2026

Exploit Status Not Found

Score 7.5 CVSS v2.0

Exploit Probability (EPSS)

3.43%

Vulnerability Summary

CVE-2015-8077: 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.

Impacted Vendors

university_of_washington 1

cyrus 1

Reference Links

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

CVSS v2.0

Source Entity [email protected]

Severity HIGH

7.5

Access Vector

N/A

Authentication

N/A

RAW VECTOR AV:N/AC:L/Au:N/C:P/I:P/A:P

Associated Attack Patterns (CAPEC)

Total: Patterns

CVE-2015-8077 Exploits & PoCs (Proof Of Concept)

No public PoCs found in our database for this CVE.

May 06, 2026 MODIFIED

Vulnerability data updated via NVD.

April 12, 2025 MODIFIED

Vulnerability data or affected products updated.

December 03, 2015 PUBLISHED

Vulnerability first announced in NVD.

Attack Vector Matrix

Access Vector N/A

Complexity N/A

Privileges N/A

Interaction NONE

CVSS Vector String


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

Affected Stack

No specific products linked.