CVE-2020-13696
published 2020-06-08CVE-2020-13696: An issue was discovered in LinuxTV xawtv before 3.107. The function dev_open() in v4l-conf.c does not perform sufficient checks to prevent an unprivileged…
PriorityP423medium4.4CVSS 3.1
AVLACLPRLUINSUCLILAN
EPSS
0.36%
28.1th percentile
An issue was discovered in LinuxTV xawtv before 3.107. The function dev_open() in v4l-conf.c does not perform sufficient checks to prevent an unprivileged caller of the program from opening unintended filesystem paths. This allows a local attacker with access to the v4l-conf setuid-root program to test for the existence of arbitrary files and to trigger an open on arbitrary files with mode O_RDWR. To achieve this, relative path components need to be added to the device path, as demonstrated by a v4l-conf -c /dev/../root/.bash_history command.
Affected
13 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| canonical | ubuntu_linux | — | — |
| debian | debian_linux | — | — |
| debian | xawtv | < xawtv 3.107-1 (bookworm) | xawtv 3.107-1 (bookworm) |
| fedoraproject | fedora | — | — |
| fedoraproject | fedora | — | — |
| linuxtv | xawtv | < 3.107 | 3.107 |
| linuxtv | xawtv | >= 0 < 3.107-1 | 3.107-1 |
| linuxtv | xawtv | >= 0 < 3.107-1 | 3.107-1 |
| linuxtv | xawtv | >= 0 < 3.107-1 | 3.107-1 |
| linuxtv | xawtv | >= 0 < 3.107-1 | 3.107-1 |
| linuxtv | xawtv | >= 0 < 3.103-3+deb8u1build0.16.04.1 | 3.103-3+deb8u1build0.16.04.1 |
| opensuse | backports_sle | — | — |
| opensuse | leap | — | — |
CVSS provenance
nvdv3.14.4MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
nvdv2.03.6LOWAV:L/AC:L/Au:N/C:P/I:P/A:N
osv4.4MEDIUM
vendor_debian4.4MEDIUM
vendor_ubuntu4.4MEDIUM
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Ubuntu
xawtv vulnerability
vendor_ubuntu·2020-09-17·CVSS 4.4
CVE-2020-13696 [MEDIUM] xawtv vulnerability
Title: xawtv vulnerability
Summary: xawtv could be made to expose sensitive information and escalate
user privileges if it received specially crafted input.
Matthias Gerstner discovered that xawtv incorrectly handled opening files.
A local attacker could possibly use this issue to open and write to
arbitrary files and escalate privileges. (CVE-2020-13696)
Instructions: In general, a standard system update will make all the necessary changes.
Debian
CVE-2020-13696: xawtv - An issue was discovered in LinuxTV xawtv before 3.107. The function dev_open() i...
vendor_debian·2020·CVSS 4.4
CVE-2020-13696 [MEDIUM] CVE-2020-13696: xawtv - An issue was discovered in LinuxTV xawtv before 3.107. The function dev_open() i...
An issue was discovered in LinuxTV xawtv before 3.107. The function dev_open() in v4l-conf.c does not perform sufficient checks to prevent an unprivileged caller of the program from opening unintended filesystem paths. This allows a local attacker with access to the v4l-conf setuid-root program to test for the existence of arbitrary files and to trigger an open on arbitrary files with mode O_RDWR. To achieve this, relative path components need to be added to the device path, as demonstrated by a v4l-conf -c /dev/../root/.bash_history command.
Scope: local
bookworm: resolved (fixed in 3.107-1)
bullseye: resolved (fixed in 3.107-1)
forky: resolved (fixed in 3.107-1)
sid: resolved (fixed in 3.107-1)
trixie: resolved (fixed in 3.107-1)
GHSA
GHSA-v59g-m57m-jww7: An issue was discovered in LinuxTV xawtv before 3
ghsa_unreviewed·2022-05-24
CVE-2020-13696 [LOW] CWE-732 GHSA-v59g-m57m-jww7: An issue was discovered in LinuxTV xawtv before 3
An issue was discovered in LinuxTV xawtv before 3.107. The function dev_open() in v4l-conf.c does not perform sufficient checks to prevent an unprivileged caller of the program from opening unintended filesystem paths. This allows a local attacker with access to the v4l-conf setuid-root program to test for the existence of arbitrary files and to trigger an open on arbitrary files with mode O_RDWR. To achieve this, relative path components need to be added to the device path, as demonstrated by a v4l-conf -c /dev/../root/.bash_history command.
OSV
xawtv vulnerability
osv·2020-09-17·CVSS 4.4
CVE-2020-13696 [MEDIUM] xawtv vulnerability
xawtv vulnerability
Matthias Gerstner discovered that xawtv incorrectly handled opening files.
A local attacker could possibly use this issue to open and write to
arbitrary files and escalate privileges. (CVE-2020-13696)
OSV
CVE-2020-13696: An issue was discovered in LinuxTV xawtv before 3
osv·2020-06-08·CVSS 4.4
CVE-2020-13696 [MEDIUM] CVE-2020-13696: An issue was discovered in LinuxTV xawtv before 3
An issue was discovered in LinuxTV xawtv before 3.107. The function dev_open() in v4l-conf.c does not perform sufficient checks to prevent an unprivileged caller of the program from opening unintended filesystem paths. This allows a local attacker with access to the v4l-conf setuid-root program to test for the existence of arbitrary files and to trigger an open on arbitrary files with mode O_RDWR. To achieve this, relative path components need to be added to the device path, as demonstrated by a v4l-conf -c /dev/../root/.bash_history command.
No detection rules found.
No public exploits indexed.
Bugzilla
CVE-2020-13696 xawtv: specially crafted input leads to information disclosure and user privilege escalation
bugzilla·2020-09-24·CVSS 4.4
CVE-2020-13696 [MEDIUM] CVE-2020-13696 xawtv: specially crafted input leads to information disclosure and user privilege escalation
CVE-2020-13696 xawtv: specially crafted input leads to information disclosure and user privilege escalation
A vulnerability was found in xawtv where a local attacker could possibly use this issue to open and write to
arbitrary files and escalate privileges.
Discussion:
Created xawtv tracking bugs for this issue:
Affects: epel-all [bug 1882287]
Affects: fedora-all [bug 1882286]
---
This CVE Bugzilla entry is for community support informational purposes only as it does not affect a package in a commercially supported Red Hat product. Refer to the dependent bugs for status of those individual community products.
Bugzilla
CVE-2020-13696 xawtv: specially crafted input leads to information disclosure and user privilege escalation [fedora-all]
bugzilla·2020-09-24·CVSS 4.4
CVE-2020-13696 [MEDIUM] CVE-2020-13696 xawtv: specially crafted input leads to information disclosure and user privilege escalation [fedora-all]
CVE-2020-13696 xawtv: specially crafted input leads to information disclosure and user privilege escalation [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-all.
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: thi
Bugzilla
CVE-2020-13696 xawtv: specially crafted input leads to information disclosure and user privilege escalation [epel-all]
bugzilla·2020-09-24·CVSS 4.4
CVE-2020-13696 [MEDIUM] CVE-2020-13696 xawtv: specially crafted input leads to information disclosure and user privilege escalation [epel-all]
CVE-2020-13696 xawtv: specially crafted input leads to information disclosure and user privilege escalation [epel-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 epel-all.
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 is
http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00009.htmlhttp://lists.opensuse.org/opensuse-security-announce/2020-06/msg00013.htmlhttp://www.openwall.com/lists/oss-security/2020/06/04/6https://bugzilla.suse.com/show_bug.cgi?id=CVE-2020-13696https://git.linuxtv.org/xawtv3.git/commit/?id=31f31f9cbaee7be806cba38e0ff5431bd44b20a3https://git.linuxtv.org/xawtv3.git/commit/?id=36dc44e68e5886339b4a0fbe3f404fb1a4fd2292https://git.linuxtv.org/xawtv3.git/commit/?id=8e3feea862db68d3ca0886f46cd99fab45d2db7chttps://lists.debian.org/debian-lts-announce/2020/06/msg00018.htmlhttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ELOXU5LXQSQOXX64D4BICZV3TQWOBXHC/https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/I7XWAO7W2DGA6M52JGK2TDWUGF62Q2KY/https://usn.ubuntu.com/4518-1/http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00009.htmlhttp://lists.opensuse.org/opensuse-security-announce/2020-06/msg00013.htmlhttp://www.openwall.com/lists/oss-security/2020/06/04/6https://bugzilla.suse.com/show_bug.cgi?id=CVE-2020-13696https://git.linuxtv.org/xawtv3.git/commit/?id=31f31f9cbaee7be806cba38e0ff5431bd44b20a3https://git.linuxtv.org/xawtv3.git/commit/?id=36dc44e68e5886339b4a0fbe3f404fb1a4fd2292https://git.linuxtv.org/xawtv3.git/commit/?id=8e3feea862db68d3ca0886f46cd99fab45d2db7chttps://lists.debian.org/debian-lts-announce/2020/06/msg00018.htmlhttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ELOXU5LXQSQOXX64D4BICZV3TQWOBXHC/https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/I7XWAO7W2DGA6M52JGK2TDWUGF62Q2KY/https://usn.ubuntu.com/4518-1/
2020-06-08
Published