CVE-2018-18508
published 2020-10-22CVE-2018-18508: In Network Security Services (NSS) before 3.36.7 and before 3.41.1, a malformed signature can cause a crash due to a null dereference, resulting in a Denial of…
PriorityP428medium6.5CVSS 3.1
AVNACLPRNUIRSUCNINAH
EPSS
1.98%
78.3th percentile
In Network Security Services (NSS) before 3.36.7 and before 3.41.1, a malformed signature can cause a crash due to a null dereference, resulting in a Denial of Service.
Affected
17 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | nss | < nss 2:3.42.1-1 (bookworm) | nss 2:3.42.1-1 (bookworm) |
| mozilla | network_security_services | < 3.36.7 | 3.36.7 |
| mozilla | network_security_services | >= 3.41 < 3.41.1 | 3.41.1 |
| mozilla | nss | >= 0 < 2:3.42.1-1 | 2:3.42.1-1 |
| mozilla | nss | >= 0 < 2:3.42.1-1 | 2:3.42.1-1 |
| mozilla | nss | >= 0 < 2:3.42.1-1 | 2:3.42.1-1 |
| mozilla | nss | >= 0 < 2:3.42.1-1 | 2:3.42.1-1 |
| mozilla | nss | >= unspecified < 3.41.1 | 3.41.1 |
| mozilla | nss | >= unspecified < 3.36.7 | 3.36.7 |
| siemens | ruggedcom_rox_mx5000_firmware | < 2.14.0 | 2.14.0 |
| siemens | ruggedcom_rox_rx1400_firmware | < 2.14.0 | 2.14.0 |
| siemens | ruggedcom_rox_rx1500_firmware | < 2.14.0 | 2.14.0 |
| siemens | ruggedcom_rox_rx1501_firmware | < 2.14.0 | 2.14.0 |
| siemens | ruggedcom_rox_rx1510_firmware | < 2.14.0 | 2.14.0 |
| siemens | ruggedcom_rox_rx1511_firmware | < 2.14.0 | 2.14.0 |
| siemens | ruggedcom_rox_rx1512_firmware | < 2.14.0 | 2.14.0 |
| siemens | ruggedcom_rox_rx5000_firmware | < 2.14.0 | 2.14.0 |
CVSS provenance
nvdv3.16.5MEDIUMCVSS:3.1/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_debian6.5MEDIUM
vendor_redhat6.5MEDIUM
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GHSA
GHSA-45r6-rwfw-29cq: In Network Security Services (NSS) before 3
ghsa_unreviewed·2022-05-24
CVE-2018-18508 [MEDIUM] CWE-476 GHSA-45r6-rwfw-29cq: In Network Security Services (NSS) before 3
In Network Security Services (NSS) before 3.36.7 and before 3.41.1, a malformed signature can cause a crash due to a null dereference, resulting in a Denial of Service.
OSV
CVE-2018-18508: In Network Security Services (NSS) before 3
osv·2020-10-22·CVSS 6.5
CVE-2018-18508 [MEDIUM] CVE-2018-18508: In Network Security Services (NSS) before 3
In Network Security Services (NSS) before 3.36.7 and before 3.41.1, a malformed signature can cause a crash due to a null dereference, resulting in a Denial of Service.
CISA ICS
Siemens RUGGEDCOM ROX II
cisa_ics·2021-02-09·CVSS 5.9
[MEDIUM] Siemens RUGGEDCOM ROX II
## Archived Content In an effort to keep CISA.gov current, the archive contains outdated information that may not reflect current policy or programs.
ICS Advisory
##
Siemens RUGGEDCOM ROX II
Last RevisedFebruary 09, 2021
Alert CodeICSA-21-040-04
## 1. EXECUTIVE SUMMARY
- CVSS v3 9.8
- ATTENTION: Exploitable remotely/low skill level to exploit
- Vendor: Siemens
- Equipment: RUGGEDCOM ROX IIB
- Vulnerabilities: Improper Input Validation, NULL Pointer Dereference, Out-of-Bounds Write, Insufficient Verification of Data Authenticity, Improper Certificate Validation, Out-of-bounds Read
## 2. RISK EVALUATION
Successful exploitation of these vulnerabilities could allow the decryption of encrypted content, possible code execution, or cause a sy
Ubuntu
NSS vulnerability
vendor_ubuntu·2019-02-27
CVE-2018-18508 NSS vulnerability
Title: NSS vulnerability
Summary: NSS could be made to crash if it received specially crafted network
traffic.
USN-3898-1 fixed a vulnerability in NSS. This update provides
the corresponding update for Ubuntu 12.04 ESM.
Original advisory details:
Hanno Böck and Damian Poddebniak discovered that NSS incorrectly handled
certain CMS functions. A remote attacker could possibly use this issue to
cause NSS to crash, resulting in a denial of service.
Instructions: After a standard system update you need to restart any applications that
use NSS, such as Evolution, to make all the necessary changes.
Ubuntu
NSS vulnerability
vendor_ubuntu·2019-02-27
CVE-2018-18508 NSS vulnerability
Title: NSS vulnerability
Summary: NSS could be made to crash if it received specially crafted network
traffic.
Hanno Böck and Damian Poddebniak discovered that NSS incorrectly handled
certain CMS functions. A remote attacker could possibly use this issue to
cause NSS to crash, resulting in a denial of service.
Instructions: After a standard system update you need to restart any applications that
use NSS, such as Evolution, to make all the necessary changes.
Red Hat
nss: NULL pointer dereference in several CMS functions resulting in a denial of service
vendor_redhat·2019-01-22·CVSS 6.5
CVE-2018-18508 [MEDIUM] CWE-476 nss: NULL pointer dereference in several CMS functions resulting in a denial of service
nss: NULL pointer dereference in several CMS functions resulting in a denial of service
In Network Security Services (NSS) before 3.36.7 and before 3.41.1, a malformed signature can cause a crash due to a null dereference, resulting in a Denial of Service.
Mitigation: This issue only affects applications compiled against NSS which use CMS (Cryptographic Message Syntax) API. Other applications are not affected.
Package: nss (Red Hat Enterprise Linux 5) - Will not fix
Package: nss (Red Hat Enterprise Linux 6) - Will not fix
Package: nss (Red Hat Enterprise Linux 7) - Will not fix
Package: mingw-nss (Red Hat Enterprise Linux 8) - Will not fix
Package: redhat-virtualization-host (Red Hat Virtualization 4) - Will not fix
Package: rhvm-appliance (Red Hat Virtualization 4) - Will not fix
Debian
CVE-2018-18508: nss - In Network Security Services (NSS) before 3.36.7 and before 3.41.1, a malformed ...
vendor_debian·2018·CVSS 6.5
CVE-2018-18508 [MEDIUM] CVE-2018-18508: nss - In Network Security Services (NSS) before 3.36.7 and before 3.41.1, a malformed ...
In Network Security Services (NSS) before 3.36.7 and before 3.41.1, a malformed signature can cause a crash due to a null dereference, resulting in a Denial of Service.
Scope: local
bookworm: resolved (fixed in 2:3.42.1-1)
bullseye: resolved (fixed in 2:3.42.1-1)
forky: resolved (fixed in 2:3.42.1-1)
sid: resolved (fixed in 2:3.42.1-1)
trixie: resolved (fixed in 2:3.42.1-1)
No detection rules found.
No public exploits indexed.
Bugzilla
CVE-2018-18508 nss: NULL pointer dereference in several CMS functions resulting in a denial of service [fedora-all]
bugzilla·2019-01-31·CVSS 6.5
CVE-2018-18508 [MEDIUM] CVE-2018-18508 nss: NULL pointer dereference in several CMS functions resulting in a denial of service [fedora-all]
CVE-2018-18508 nss: NULL pointer dereference in several CMS functions resulting in a denial of service [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 iss
Bugzilla
CVE-2018-18508 nss: NULL pointer dereference in several CMS functions resulting in a denial of service
bugzilla·2019-01-31·CVSS 6.5
CVE-2018-18508 [MEDIUM] CVE-2018-18508 nss: NULL pointer dereference in several CMS functions resulting in a denial of service
CVE-2018-18508 nss: NULL pointer dereference in several CMS functions resulting in a denial of service
A NULL pointer dereference issue was found in several CMS function. A specially crafted data could possibly crash nss.
External References:
https://developer.mozilla.org/en-US/docs/Mozilla/Projects/NSS/NSS_3.41.1_release_notes
Discussion:
Created nss tracking bugs for this issue:
Affects: fedora-all [bug 1671311]
---
Upstream patch:
https://hg.mozilla.org/projects/nss/rev/08d1b0c1117f
https://hg.mozilla.org/projects/nss/rev/5e70b72131ac
---
This issue has been addressed in the following products:
Red Hat Enterprise Linux 8
Via RHSA-2019:1951 https://access.redhat.com/errata/RHSA-2019:1951
---
This bug is now closed. Further updates for individual products will be reflected
Bugzilla
null pointer / crash in NSS_CMSMessage_IsSigned (can be used to crash Firefox addon installer or Thunderbird SMIME verification)
bugzilla·2018-11-14
[MEDIUM] null pointer / crash in NSS_CMSMessage_IsSigned (can be used to crash Firefox addon installer or Thunderbird SMIME verification)
null pointer / crash in NSS_CMSMessage_IsSigned (can be used to crash Firefox addon installer or Thunderbird SMIME verification)
Created attachment 9025020
proposed patch
We discovered a null pointer deref in NSS_CMSMessage_IsSigned().
This can be triggered by using a CMS signature that contains a signedData OID and nothing else.
This can be used to crash the Firefox addon installer by crafting such a signature, I'll attach an example XPI file demonstrating that. It can also be used to crash thunderbird with an SMIME signature.
I'll attach a stack trace from a firefox asan build. (You may have gotten several such crashes via the nightly/asan build that got sent automatically, I wasn't aware that this happens immediately.)
I'll also attach a patch that I believe fixes this, it adds a
https://cert-portal.siemens.com/productcert/pdf/ssa-379803.pdfhttps://developer.mozilla.org/en-US/docs/Mozilla/Projects/NSS/NSS_3.36.7_release_noteshttps://developer.mozilla.org/en-US/docs/Mozilla/Projects/NSS/NSS_3.41.1_release_noteshttps://us-cert.cisa.gov/ics/advisories/icsa-21-040-04https://cert-portal.siemens.com/productcert/pdf/ssa-379803.pdfhttps://developer.mozilla.org/en-US/docs/Mozilla/Projects/NSS/NSS_3.36.7_release_noteshttps://developer.mozilla.org/en-US/docs/Mozilla/Projects/NSS/NSS_3.41.1_release_noteshttps://us-cert.cisa.gov/ics/advisories/icsa-21-040-04
2020-10-22
Published