CVE-2016-7553
published 2017-02-27CVE-2016-7553: The buf.pl script before 2.20 in Irssi before 0.8.20 uses weak permissions for the scrollbuffer dump file created between upgrades, which might allow local…
PriorityP47low3.3CVSS 3.0
AVLACLPRLUINSUCLINAN
EPSS
0.39%
31.3th percentile
The buf.pl script before 2.20 in Irssi before 0.8.20 uses weak permissions for the scrollbuffer dump file created between upgrades, which might allow local users to obtain sensitive information from private chat conversations by reading the file.
Affected
8 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | irssi | < irssi 0.8.20-2 (bookworm) | irssi 0.8.20-2 (bookworm) |
| irssi | buf.pl | <= 2.13 | — |
| irssi | irssi | >= 0 < 0.8.20-2 | 0.8.20-2 |
| irssi | irssi | >= 0 < 0.8.20-2 | 0.8.20-2 |
| irssi | irssi | >= 0 < 0.8.20-2 | 0.8.20-2 |
| irssi | irssi | >= 0 < 0.8.20-2 | 0.8.20-2 |
| irssi | irssi | >= 0 < 0.8.15-5ubuntu3.1 | 0.8.15-5ubuntu3.1 |
| irssi | irssi | >= 0 < 0.8.19-1ubuntu1.3 | 0.8.19-1ubuntu1.3 |
CVSS provenance
nvdv3.03.3LOWCVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
nvdv2.02.1LOWAV:L/AC:L/Au:N/C:P/I:N/A:N
osv3.3LOW
vendor_debian3.3LOW
vendor_redhat3.3LOW
vendor_ubuntu3.3LOW
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Ubuntu
Irssi vulnerabilities
vendor_ubuntu·2017-02-01·CVSS 3.3
CVE-2016-7553 [LOW] Irssi vulnerabilities
Title: Irssi vulnerabilities
Summary: Several security issues were fixed in Irssi.
It was discovered that the Irssi buf.pl script set incorrect permissions. A
local attacker could use this issue to retrieve another user's window
contents. (CVE-2016-7553)
Joseph Bisch discovered that Irssi incorrectly handled comparing nicks. A
remote attacker could use this issue to cause Irssi to crash, resulting in
a denial of service, or possibly execute arbitrary code. (CVE-2017-5193)
It was discovered that Irssi incorrectly handled invalid nick messages. A
remote attacker could use this issue to cause Irssi to crash, resulting in
a denial of service, or possibly execute arbitrary code. (CVE-2017-5194)
Joseph Bisch discovered that Irssi incorrectly handled certain incomplete
control codes. A remot
Red Hat
irssi: Information disclosure in buf.pl
vendor_redhat·2016-09-22·CVSS 3.3
CVE-2016-7553 [LOW] CWE-732 irssi: Information disclosure in buf.pl
irssi: Information disclosure in buf.pl
The buf.pl script before 2.20 in Irssi before 0.8.20 uses weak permissions for the scrollbuffer dump file created between upgrades, which might allow local users to obtain sensitive information from private chat conversations by reading the file.
Statement: Red Hat Product Security has rated this issue as having Low security impact. This issue is not currently planned to be addressed in future updates. For additional information, refer to the Issue Severity Classification: https://access.redhat.com/security/updates/classification/.
Package: irssi (Red Hat Enterprise Linux 6) - Will not fix
Package: irssi (Red Hat Enterprise Linux 7) - Will not fix
Debian
CVE-2016-7553: irssi - The buf.pl script before 2.20 in Irssi before 0.8.20 uses weak permissions for t...
vendor_debian·2016·CVSS 3.3
CVE-2016-7553 [LOW] CVE-2016-7553: irssi - The buf.pl script before 2.20 in Irssi before 0.8.20 uses weak permissions for t...
The buf.pl script before 2.20 in Irssi before 0.8.20 uses weak permissions for the scrollbuffer dump file created between upgrades, which might allow local users to obtain sensitive information from private chat conversations by reading the file.
Scope: local
bookworm: resolved (fixed in 0.8.20-2)
bullseye: resolved (fixed in 0.8.20-2)
forky: resolved (fixed in 0.8.20-2)
sid: resolved (fixed in 0.8.20-2)
trixie: resolved (fixed in 0.8.20-2)
GHSA
GHSA-6fh2-w324-phpv: The buf
ghsa_unreviewed·2022-05-17
CVE-2016-7553 [LOW] GHSA-6fh2-w324-phpv: The buf
The buf.pl script before 2.20 in Irssi before 0.8.20 uses weak permissions for the scrollbuffer dump file created between upgrades, which might allow local users to obtain sensitive information from private chat conversations by reading the file.
OSV
CVE-2016-7553: The buf
osv·2017-02-27·CVSS 3.3
CVE-2016-7553 [LOW] CVE-2016-7553: The buf
The buf.pl script before 2.20 in Irssi before 0.8.20 uses weak permissions for the scrollbuffer dump file created between upgrades, which might allow local users to obtain sensitive information from private chat conversations by reading the file.
OSV
irssi vulnerabilities
osv·2017-02-01·CVSS 3.3
CVE-2016-7553 [LOW] irssi vulnerabilities
irssi vulnerabilities
It was discovered that the Irssi buf.pl script set incorrect permissions. A
local attacker could use this issue to retrieve another user's window
contents. (CVE-2016-7553)
Joseph Bisch discovered that Irssi incorrectly handled comparing nicks. A
remote attacker could use this issue to cause Irssi to crash, resulting in
a denial of service, or possibly execute arbitrary code. (CVE-2017-5193)
It was discovered that Irssi incorrectly handled invalid nick messages. A
remote attacker could use this issue to cause Irssi to crash, resulting in
a denial of service, or possibly execute arbitrary code. (CVE-2017-5194)
Joseph Bisch discovered that Irssi incorrectly handled certain incomplete
control codes. A remote attacker could use this issue to cause Irssi to
crash, resul
No detection rules found.
No public exploits indexed.
Bugzilla
CVE-2016-7553 irssi: Information disclosure in buf.pl [epel-5]
bugzilla·2016-09-26·CVSS 3.3
CVE-2016-7553 [LOW] CVE-2016-7553 irssi: Information disclosure in buf.pl [epel-5]
CVE-2016-7553 irssi: Information disclosure in buf.pl [epel-5]
This is an automatically created tracking bug! It was created to ensure
that one or more security vulnerabilities are fixed in affected versions
of Fedora EPEL.
For comments that are specific to the vulnerability please use bugs filed
against the "Security Response" product referenced in the "Blocks" field.
For more information see:
http://fedoraproject.org/wiki/Security/TrackingBugs
When submitting as an update, use the fedpkg template provided in the next
comment(s). This will include the bug IDs of this tracking bug as well as
the relevant top-level CVE bugs.
Please also mention the CVE IDs being fixed in the RPM changelog and the
fedpkg commit message.
[bug automatically created by: add-tracking-bugs]
Discussion:
Us
Bugzilla
CVE-2016-7553 irssi: Information disclosure in buf.pl
bugzilla·2016-09-26·CVSS 3.3
CVE-2016-7553 [LOW] CVE-2016-7553 irssi: Information disclosure in buf.pl
CVE-2016-7553 irssi: Information disclosure in buf.pl
An information disclosure vulnerability was found in the buf.pl core script for irssi. Other users on the same machine may be able to retrieve the whole window contents after /UPGRADE when the buf.pl script is loaded. Furthermore, this dump of the windows contents is never removed afterwards.
External References:
https://irssi.org/2016/09/22/buf.pl-update/
Upstream fix:
https://github.com/irssi/scripts.irssi.org/commit/f1b1eb154baa684fad5d65bf4dff79c8ded8b65a
References:
http://seclists.org/oss-sec/2016/q3/605
Discussion:
Created irssi tracking bugs for this issue:
Affects: fedora-all [bug 1379272]
Affects: epel-5 [bug 1379273]
---
Fixed.
---
(In reply to Jaroslav Škarvada from comment #2)
> Fixed.
In Fedora 23 - 26 and E
Bugzilla
CVE-2016-7553 irssi: Information disclosure in buf.pl [fedora-all]
bugzilla·2016-09-26·CVSS 3.3
CVE-2016-7553 [LOW] CVE-2016-7553 irssi: Information disclosure in buf.pl [fedora-all]
CVE-2016-7553 irssi: Information disclosure in buf.pl [fedora-all]
This is an automatically created tracking bug! It was created to ensure
that one or more security vulnerabilities are fixed in affected versions
of Fedora.
For comments that are specific to the vulnerability please use bugs filed
against the "Security Response" product referenced in the "Blocks" field.
For more information see:
http://fedoraproject.org/wiki/Security/TrackingBugs
When submitting as an update, use the fedpkg template provided in the next
comment(s). This will include the bug IDs of this tracking bug as well as
the relevant top-level CVE bugs.
Please also mention the CVE IDs being fixed in the RPM changelog and the
fedpkg commit message.
NOTE: this issue affects multiple supported versions of Fedora. Whi
http://www.openwall.com/lists/oss-security/2016/09/24/1http://www.openwall.com/lists/oss-security/2016/09/26/4http://www.securityfocus.com/bid/93155https://github.com/irssi/scripts.irssi.org/commit/f1b1eb154baa684fad5d65bf4dff79c8ded8b65ahttps://irssi.org/security/buf_pl_sa_2016.txthttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/7OM3WHWQ7RIAOZSOZZUM4CUYGKSIAGJJ/http://www.openwall.com/lists/oss-security/2016/09/24/1http://www.openwall.com/lists/oss-security/2016/09/26/4http://www.securityfocus.com/bid/93155https://github.com/irssi/scripts.irssi.org/commit/f1b1eb154baa684fad5d65bf4dff79c8ded8b65ahttps://irssi.org/security/buf_pl_sa_2016.txthttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/7OM3WHWQ7RIAOZSOZZUM4CUYGKSIAGJJ/
2017-02-27
Published