CVE-2018-20532
published 2018-12-28CVE-2018-20532: There is a NULL pointer dereference at ext/testcase.c (function testcase_read) in libsolvext.a in libsolv through 0.7.2 that will cause a denial of service.
PriorityP426medium6.5CVSS 3.0
AVNACLPRNUIRSUCNINAH
EPSS
2.15%
79.9th percentile
There is a NULL pointer dereference at ext/testcase.c (function testcase_read) in libsolvext.a in libsolv through 0.7.2 that will cause a denial of service.
Affected
7 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| canonical | ubuntu_linux | — | — |
| debian | libsolv | < libsolv 0.6.36-1 (bookworm) | libsolv 0.6.36-1 (bookworm) |
| opensuse | libsolv | <= 0.7.2 | — |
| opensuse | libsolv | >= 0 < 0.6.36-1 | 0.6.36-1 |
| opensuse | libsolv | >= 0 < 0.6.36-1 | 0.6.36-1 |
| opensuse | libsolv | >= 0 < 0.6.36-1 | 0.6.36-1 |
| opensuse | libsolv | >= 0 < 0.6.36-1 | 0.6.36-1 |
CVSS provenance
nvdv3.06.5MEDIUMCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
nvdv2.04.3MEDIUMAV:N/AC:M/Au:N/C:N/I:N/A:P
osv6.5MEDIUM
vendor_debian6.5LOW
vendor_redhat6.5MEDIUM
Stop checking back — get the weekly exploitation signal.
Every Monday: what got weaponized or added to CISA KEV in the last seven days — each CVE cross-linked to its PoC, Nuclei template, and detection rule. Free, one email a week, unsubscribe in one click.
Ubuntu
Libsolv vulnerabilities
vendor_ubuntu·2021-03-15
CVE-2018-20532 Libsolv vulnerabilities
Title: Libsolv vulnerabilities
Summary: Libsolv could be made to crash if it received specially crafted input.
It was discovered that Libsolv incorrectly handled certain malformed input.
An attacker could use this issue to cause Libsolv to crash, resulting in a
denial of service.
Instructions: In general, a standard system update will make all the necessary changes.
Ubuntu
libsolv vulnerabilities
vendor_ubuntu·2019-03-22
CVE-2018-20532 libsolv vulnerabilities
Title: libsolv vulnerabilities
Summary: Libzip could be made to crash if it received specially crafted input.
It was discovered that libsolv incorrectly handled certain malformed input. If a
user or automated system were tricked into opening a specially crafted file,
applications that rely on libsolv could be made to crash, resulting in a denial
of service.
Instructions: After a standard system update you need to reboot your computer to make
all the necessary changes.
Red Hat
libsolv: NULL pointer dereference in function testcase_read
vendor_redhat·2018-11-22·CVSS 6.5
CVE-2018-20532 [MEDIUM] CWE-476 libsolv: NULL pointer dereference in function testcase_read
libsolv: NULL pointer dereference in function testcase_read
There is a NULL pointer dereference at ext/testcase.c (function testcase_read) in libsolvext.a in libsolv through 0.7.2 that will cause a denial of service.
Package: libsolv (Red Hat Enterprise Linux 8) - Not affected
Debian
CVE-2018-20532: libsolv - There is a NULL pointer dereference at ext/testcase.c (function testcase_read) i...
vendor_debian·2018·CVSS 6.5
CVE-2018-20532 [MEDIUM] CVE-2018-20532: libsolv - There is a NULL pointer dereference at ext/testcase.c (function testcase_read) i...
There is a NULL pointer dereference at ext/testcase.c (function testcase_read) in libsolvext.a in libsolv through 0.7.2 that will cause a denial of service.
Scope: local
bookworm: resolved (fixed in 0.6.36-1)
bullseye: resolved (fixed in 0.6.36-1)
forky: resolved (fixed in 0.6.36-1)
sid: resolved (fixed in 0.6.36-1)
trixie: resolved (fixed in 0.6.36-1)
GHSA
GHSA-7f23-525w-gw6h: There is a NULL pointer dereference at ext/testcase
ghsa_unreviewed·2022-05-14
CVE-2018-20532 [MEDIUM] CWE-476 GHSA-7f23-525w-gw6h: There is a NULL pointer dereference at ext/testcase
There is a NULL pointer dereference at ext/testcase.c (function testcase_read) in libsolvext.a in libsolv through 0.7.2 that will cause a denial of service.
OSV
CVE-2018-20532: There is a NULL pointer dereference at ext/testcase
osv·2018-12-28·CVSS 6.5
CVE-2018-20532 [MEDIUM] CVE-2018-20532: There is a NULL pointer dereference at ext/testcase
There is a NULL pointer dereference at ext/testcase.c (function testcase_read) in libsolvext.a in libsolv through 0.7.2 that will cause a denial of service.
No detection rules found.
No public exploits indexed.
Bugzilla
CVE-2018-20532 libsolv: NULL pointer dereference in function testcase_read
bugzilla·2019-01-11·CVSS 6.5
CVE-2018-20532 [MEDIUM] CVE-2018-20532 libsolv: NULL pointer dereference in function testcase_read
CVE-2018-20532 libsolv: NULL pointer dereference in function testcase_read
A vulnerability was found in libsolv through 0.7.2. There is a NULL pointer dereference at ext/testcase.c (function testcase_read) in libsolvext.a that will cause a denial of service.
References:
https://bugzilla.redhat.com/show_bug.cgi?id=1652605
Upstream Patch:
https://github.com/openSUSE/libsolv/pull/291
Discussion:
Created libsolv tracking bugs for this issue:
Affects: fedora-all [bug 1665533]
---
Function testcase_read() read a testcase from a file, however when the file is malformed and it contains a "namespace" entry, a typo in an error check condition in the code makes the program continue with the malformed input, crashing shortly after the check because it tries to access a pointer to NULL.
---
Bugzilla
CVE-2018-20532 libsolv: NULL pointer dereference in function testcase_read [fedora-all]
bugzilla·2019-01-11·CVSS 6.5
CVE-2018-20532 [MEDIUM] CVE-2018-20532 libsolv: NULL pointer dereference in function testcase_read [fedora-all]
CVE-2018-20532 libsolv: NULL pointer dereference in function testcase_read [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: this issue affects multiple supporte
http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00057.htmlhttps://access.redhat.com/errata/RHSA-2019:2290https://bugzilla.redhat.com/show_bug.cgi?id=1652605https://github.com/openSUSE/libsolv/pull/291https://usn.ubuntu.com/3916-1/http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00057.htmlhttps://access.redhat.com/errata/RHSA-2019:2290https://bugzilla.redhat.com/show_bug.cgi?id=1652605https://github.com/openSUSE/libsolv/pull/291https://usn.ubuntu.com/3916-1/
2018-12-28
Published