CVE-2021-43527 - log back

CVE-2021-43527 edited at 03 Dec 2021 10:03:59
Severity
- Critical
+ High
CVE-2021-43527 edited at 01 Dec 2021 17:13:17
References
https://www.mozilla.org/en-US/security/advisories/mfsa2021-51/#CVE-2021-43527
+ https://bugs.chromium.org/p/project-zero/issues/detail?id=2237
https://bugzilla.mozilla.org/show_bug.cgi?id=1737470
https://hg.mozilla.org/projects/nss/rev/6b3dc97a8767d9dc5c4c181597d1341d0899aa58
CVE-2021-43527 edited at 01 Dec 2021 16:55:40
Severity
- Medium
+ Critical
Description
NSS (Network Security Services) versions prior to 3.73 are vulnerable to a heap overflow when handling DER-encoded DSA or RSA-PSS signatures. Applications using NSS for handling signatures encoded within CMS, S/MIME, PKCS #7, or PKCS #12 are likely to be impacted. Applications using NSS for certificate validation or other TLS, X.509, OCSP or CRL functionality may be impacted, depending on how they configure NSS.
+
+ Note: This vulnerability does NOT impact Mozilla Firefox. However, email clients and PDF viewers that use NSS for signature verification, such as Thunderbird, LibreOffice, Evolution and Evince are believed to be impacted.
References
- https://www.openwall.com/lists/oss-security/2021/12/01/4
- https://www.mozilla.org/en-US/security/advisories/mfsa2021-51/
+ https://www.mozilla.org/en-US/security/advisories/mfsa2021-51/#CVE-2021-43527
- https://www.openwall.com/lists/oss-security/2021/12/01/4/2
+ https://bugzilla.mozilla.org/show_bug.cgi?id=1737470
+ https://hg.mozilla.org/projects/nss/rev/6b3dc97a8767d9dc5c4c181597d1341d0899aa58
CVE-2021-43527 edited at 01 Dec 2021 16:49:16
Severity
- Unknown
+ Medium
Remote
- Unknown
+ Remote
Type
- Unknown
+ Arbitrary code execution
Description
+ NSS (Network Security Services) versions prior to 3.73 are vulnerable to a heap overflow when handling DER-encoded DSA or RSA-PSS signatures. Applications using NSS for handling signatures encoded within CMS, S/MIME, PKCS #7, or PKCS #12 are likely to be impacted. Applications using NSS for certificate validation or other TLS, X.509, OCSP or CRL functionality may be impacted, depending on how they configure NSS.
References
+ https://www.openwall.com/lists/oss-security/2021/12/01/4
+ https://www.mozilla.org/en-US/security/advisories/mfsa2021-51/
+ https://www.openwall.com/lists/oss-security/2021/12/01/4/2
Notes
CVE-2021-43527 created at 01 Dec 2021 16:48:12