CLSA-2026-1779094874
See a problem?- Import Source
- https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu16.04els/CLSA-2026-1779094874.json
- JSON Data
- https://api.osv.dev/v1/vulns/CLSA-2026-1779094874
- Upstream
- Published
- 2026-05-18T09:01:19Z
- Modified
- 2026-06-04T09:47:03Z
- Summary
- Fix CVE(s): CVE-2026-28388, CVE-2026-28389
- Details
-
- SECURITY UPDATE: NULL pointer dereference in check_delta_base() when a
delta CRL is processed without the required CRL Number extension and
X509_V_FLAG_USE_DELTAS is enabled, leading to a denial of service.
- debian/patches/CVE-2026-28388.patch: add NULL check for delta->crl_number before ASN1_INTEGER_cmp() in check_delta_base()
- CVE-2026-28388
- SECURITY UPDATE: NULL pointer dereference in dh_cms_set_shared_info()
and ecdh_cms_set_shared_info() when a CMS EnvelopedData message uses
KeyAgreeRecipientInfo with a KeyEncryptionAlgorithmIdentifier whose
optional parameter field is omitted, leading to a denial of service.
- debian/patches/CVE-2026-28389.patch: check alg->parameter for NULL before accessing its type field in dh_cms_set_shared_info() and ecdh_cms_set_shared_info()
- CVE-2026-28389
- SECURITY UPDATE: NULL pointer dereference in check_delta_base() when a
delta CRL is processed without the required CRL Number extension and
X509_V_FLAG_USE_DELTAS is enabled, leading to a denial of service.
- References
Affected packages
TuxCare:Ubuntu:16.04 / libssl-dev
Package
- Name
- libssl-dev
- Purl
- pkg:deb/tuxcare/libssl-dev?distro=ubuntu-16.04
TuxCare:Ubuntu:16.04 / libssl-doc
Package
- Name
- libssl-doc
- Purl
- pkg:deb/tuxcare/libssl-doc?distro=ubuntu-16.04
TuxCare:Ubuntu:16.04 / libssl1.0.0
Package
- Name
- libssl1.0.0
- Purl
- pkg:deb/tuxcare/libssl1.0.0?distro=ubuntu-16.04