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authorTomas Mraz <tomas@openssl.org>2024-01-04 10:32:32 +0100
committerTomas Mraz <tomas@openssl.org>2024-01-09 15:48:38 +0100
commitbee1e83a18d6820b4264cbefca9ff5576ff679c2 (patch)
tree10fcedf317d0d27e66f0ab370eb42952affada9d
parentf3fc5808fe9ff74042d639839610d03b8fdcc015 (diff)
Add CHANGES.md and NEWS.md entries for CVE-2023-6129
Reviewed-by: Matt Caswell <matt@openssl.org> Reviewed-by: Richard Levitte <levitte@openssl.org> (Merged from https://github.com/openssl/openssl/pull/23200) (cherry picked from commit 858c7bc210a406cc7f891ac2aed78692d2e02937)
-rw-r--r--CHANGES.md21
-rw-r--r--NEWS.md4
2 files changed, 25 insertions, 0 deletions
diff --git a/CHANGES.md b/CHANGES.md
index 11f4d6a8d8..b30ef7b46b 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -24,6 +24,26 @@ OpenSSL 3.1
### Changes between 3.1.4 and 3.1.5 [xx XXX xxxx]
+ * The POLY1305 MAC (message authentication code) implementation in OpenSSL
+ for PowerPC CPUs saves the contents of vector registers in different
+ order than they are restored. Thus the contents of some of these vector
+ registers is corrupted when returning to the caller. The vulnerable code is
+ used only on newer PowerPC processors supporting the PowerISA 2.07
+ instructions.
+
+ The consequences of this kind of internal application state corruption can
+ be various - from no consequences, if the calling application does not
+ depend on the contents of non-volatile XMM registers at all, to the worst
+ consequences, where the attacker could get complete control of the
+ application process. However unless the compiler uses the vector registers
+ for storing pointers, the most likely consequence, if any, would be an
+ incorrect result of some application dependent calculations or a crash
+ leading to a denial of service.
+
+ ([CVE-2023-6129])
+
+ *Rohan McLure*
+
* Fix excessive time spent in DH check / generation with large Q parameter
value.
@@ -19880,6 +19900,7 @@ ndif
<!-- Links -->
+[CVE-2023-6129]: https://www.openssl.org/news/vulnerabilities.html#CVE-2023-6129
[CVE-2023-5678]: https://www.openssl.org/news/vulnerabilities.html#CVE-2023-5678
[CVE-2023-5363]: https://www.openssl.org/news/vulnerabilities.html#CVE-2023-5363
[CVE-2023-4807]: https://www.openssl.org/news/vulnerabilities.html#CVE-2023-4807
diff --git a/NEWS.md b/NEWS.md
index a953810c92..e27105d1b6 100644
--- a/NEWS.md
+++ b/NEWS.md
@@ -21,6 +21,9 @@ OpenSSL 3.1
### Major changes between OpenSSL 3.1.4 and OpenSSL 3.1.5 [under development]
+ * Fix POLY1305 MAC implementation corrupting vector registers on PowerPC
+ CPUs which support PowerISA 2.07
+ ([CVE-2023-6129])
* Fix excessive time spent in DH check / generation with large Q parameter
value ([CVE-2023-5678])
@@ -1479,6 +1482,7 @@ OpenSSL 0.9.x
<!-- Links -->
+[CVE-2023-6129]: https://www.openssl.org/news/vulnerabilities.html#CVE-2023-6129
[CVE-2023-5678]: https://www.openssl.org/news/vulnerabilities.html#CVE-2023-5678
[CVE-2023-5363]: https://www.openssl.org/news/vulnerabilities.html#CVE-2023-5363
[CVE-2023-4807]: https://www.openssl.org/news/vulnerabilities.html#CVE-2023-4807