CLSA-2026-1785837599
See a problem?- Import Source
- https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu20.04els/CLSA-2026-1785837599.json
- JSON Data
- https://api.osv.dev/v1/vulns/CLSA-2026-1785837599
- Upstream
- Published
- 2026-08-04T10:23:32Z
- Modified
- 2026-10-26T09:31:40Z
- Summary
- Fix CVE(s): CVE-2026-59847
- Details
-
- SECURITY UPDATE: authentication tag verification bypass in the AES-GCM
ciphers, allowing forged or tampered packets to be accepted as
authentic
- debian/patches/CVE-2026-59847.patch: treat an EVP_DecryptFinal() return value of 0 as an authentication failure (reject rc != 1 || outlen != 0) in evp_cipher_aead_decrypt(), and apply the symmetric fix to evp_cipher_aead_encrypt() so an EVP_EncryptFinal() return value of 0 is no longer treated as success (reject rc != 1), both in src/libcrypto.c
- CVE-2026-59847
- SECURITY UPDATE: authentication tag verification bypass in the AES-GCM
ciphers, allowing forged or tampered packets to be accepted as
authentic
- References
Affected packages
TuxCare:Ubuntu:20.04 / libssh-4
Package
- Name
- libssh-4
- Purl
- pkg:deb/tuxcare/libssh-4?distro=ubuntu-20.04
TuxCare:Ubuntu:20.04 / libssh-dev
Package
- Name
- libssh-dev
- Purl
- pkg:deb/tuxcare/libssh-dev?distro=ubuntu-20.04
TuxCare:Ubuntu:20.04 / libssh-doc
Package
- Name
- libssh-doc
- Purl
- pkg:deb/tuxcare/libssh-doc?distro=ubuntu-20.04
TuxCare:Ubuntu:20.04 / libssh-gcrypt-4
Package
- Name
- libssh-gcrypt-4
- Purl
- pkg:deb/tuxcare/libssh-gcrypt-4?distro=ubuntu-20.04