CVE-2015-1315 — unzip: charset_to_intern() buffer overflow

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HIGH

unzip: charset_to_intern() buffer overflow

Published Feb 23, 2015

7.5

HIGH

CVSS 2.0

EPSS 4.90%

Description

Buffer overflow in the charset_to_intern function in unix/unix.c in Info-Zip UnZip 6.10b allows remote attackers to execute arbitrary code via a crafted string, as demonstrated by converting a string from CP866 to UTF-8.

Affected products

Red Hat Enterprise Linux 5

unzip

Not affected
Red Hat Enterprise Linux 6

unzip

Not affected
Red Hat Enterprise Linux 7

unzip

Not affected

Product	Package	State	Advisory
Red Hat Enterprise Linux 5	unzip	Not affected	n/a
Red Hat Enterprise Linux 6	unzip	Not affected	n/a
Red Hat Enterprise Linux 7	unzip	Not affected	n/a

Remediation

Red Hat statement

Not vulnerable. This issue did not affect the version of unzip as shipped in Red Hat Enterprise Linux 5, 6, and 7.

Metrics

4.90% 0.04898

Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.

EPSS probability 0.04898

Score over time

2022–2026

EPSS v2
EPSS v3
EPSS v4
EPSS v5

Percentile over time

EPSS v2
EPSS v3
EPSS v4
EPSS v5

Table of values (20 key points)

Flat stretches are collapsed; showing up to 120 newest points.

Date	Score	Percentile	Model
Oct 1, 2026	4.90% (0.04898)	91.81th	v5 (v2026.06.15)
Jun 15, 2026	4.90% (0.04898)	90.93th	v5 (v2026.06.15)
May 13, 2026	10.61% (0.10610)	93.36th	v4 (v2025.03.14)
Dec 28, 2025	12.10% (0.12096)	93.56th	v4 (v2025.03.14)
Dec 27, 2025	10.61% (0.10610)	93.08th	v4 (v2025.03.14)
Oct 28, 2025	12.10% (0.12096)	93.48th	v4 (v2025.03.14)
Oct 27, 2025	10.61% (0.10610)	92.95th	v4 (v2025.03.14)
Oct 1, 2025	12.10% (0.12096)	93.57th	v4 (v2025.03.14)
Apr 17, 2025	10.61% (0.10610)	92.83th	v4 (v2025.03.14)
Mar 30, 2025	13.66% (0.13661)	93.64th	v4 (v2025.03.14)
Mar 29, 2025	30.32% (0.30316)	94.77th	v4 (v2025.03.14)
Mar 26, 2025	13.66% (0.13661)	93.56th	v4 (v2025.03.14)
Mar 25, 2025	30.32% (0.30316)	96.25th	v4 (v2025.03.14)
Mar 17, 2025	13.66% (0.13661)	93.72th	v4 (v2025.03.14)
Dec 17, 2024	3.64% (0.03644)	91.58th	v3 (v2023.03.01)
Mar 25, 2023	6.33% (0.06330)	92.51th	v3 (v2023.03.01)
Mar 7, 2023	6.20% (0.06196)	92.39th	v3 (v2023.03.01)
Mar 6, 2023	6.52% (0.06523)	91.37th	v2 (v2022.01.01)
Apr 1, 2022	6.52% (0.06523)	90.53th	v2 (v2022.01.01)
Feb 4, 2022	6.52% (0.06523)	78.43th	v2 (v2022.01.01)

Weaknesses (2)

CWE-119

Buffer Overflow

CWE-120

Classic Buffer Overflow

References (8)

http://www.conostix.com/pub/adv/CVE-2015-1315-Info-ZIP-unzip-Out-of-bounds_Write.txt
x_refsource_MISC
http://www.openwall.com/lists/oss-security/2015/02/17/4
mailing-listx_refsource_MLIST
http://www.ubuntu.com/usn/USN-2502-1
vendor-advisoryx_refsource_UBUNTUPatchVendor Advisory
https://access.redhat.com/security/cve/CVE-2015-1315
Vendor Advisory
https://bugs.launchpad.net/ubuntu/+source/unzip/+bug/580961/comments/120
x_refsource_MISC
https://bugzilla.redhat.com/show_bug.cgi?id=1192603
Issue Tracking
https://nvd.nist.gov/vuln/detail/CVE-2015-1315
https://www.cve.org/CVERecord?id=CVE-2015-1315

Link	Providers	Tags
http://www.conostix.com/pub/adv/CVE-2015-1315-Info-ZIP-unzip-Out-of-bounds_Write.txt		x_refsource_MISC
http://www.openwall.com/lists/oss-security/2015/02/17/4		mailing-listx_refsource_MLIST
http://www.ubuntu.com/usn/USN-2502-1		vendor-advisoryx_refsource_UBUNTUPatchVendor Advisory
https://access.redhat.com/security/cve/CVE-2015-1315		Vendor Advisory
https://bugs.launchpad.net/ubuntu/+source/unzip/+bug/580961/comments/120		x_refsource_MISC
https://bugzilla.redhat.com/show_bug.cgi?id=1192603		Issue Tracking
https://nvd.nist.gov/vuln/detail/CVE-2015-1315
https://www.cve.org/CVERecord?id=CVE-2015-1315